diff --git a/calculator/quaternion.go b/calculator/quaternion.go
new file mode 100644
index 0000000..e19b58b
--- /dev/null
+++ b/calculator/quaternion.go
@@ -0,0 +1,70 @@
+package calculator
+
+import (
+	"fmt"
+	"math"
+)
+
+// Quaternion represents a quaternion with scalar (w) and vector (x, y, z) parts
+type Quaternion struct {
+	w, x, y, z float64
+}
+
+// Quaternion multiplication
+func (q1 Quaternion) Mul(q2 Quaternion) Quaternion {
+	return Quaternion{
+		w: q1.w*q2.w - q1.x*q2.x - q1.y*q2.y - q1.z*q2.z,
+		x: q1.w*q2.x + q1.x*q2.w + q1.y*q2.z - q1.z*q2.y,
+		y: q1.w*q2.y - q1.x*q2.z + q1.y*q2.w + q1.z*q2.x,
+		z: q1.w*q2.z + q1.x*q2.y - q1.y*q2.x + q1.z*q2.w,
+	}
+}
+
+// Quaternion conjugate
+func (q Quaternion) Conjugate() Quaternion {
+	return Quaternion{w: q.w, x: -q.x, y: -q.y, z: -q.z}
+}
+
+// Rotate vector by quaternion
+func (q Quaternion) Rotate(v [3]float64) [3]float64 {
+	qv := Quaternion{w: 0, x: v[0], y: v[1], z: v[2]}
+	qConj := q.Conjugate()
+	qvRotated := q.Mul(qv).Mul(qConj)
+	return [3]float64{qvRotated.x, qvRotated.y, qvRotated.z}
+}
+
+func main() {
+	// 示例数据
+	qBI := Quaternion{w: 1, x: 0, y: 0, z: 0} // 本体相对惯性系四元数
+	posJ2000 := [3]float64{7000, 0, 0}        // J2000位置
+	// velJ2000 := [3]float64{0, 7.5, 0}         // J2000速度
+
+	// 相机参数
+	const numPixels = 9520
+	const fov = 10.0 * math.Pi / 180 // 假设视场角为10度
+
+	// 逐像素计算地面交点
+	for i := 0; i < numPixels; i++ {
+		// 计算像素点相对光轴的偏角
+		pixelOffset := (float64(i) - float64(numPixels)/2) / float64(numPixels)
+		angle := pixelOffset * fov
+
+		// 假设光轴在本体坐标系中指向-z方向，计算视线方向
+		dBody := [3]float64{-math.Sin(angle), 0, -math.Cos(angle)}
+
+		// 转换到惯性系
+		dInertial := qBI.Rotate(dBody)
+
+		// 计算地面交点（假设dInertial已经标准化）
+		k := -posJ2000[2] / dInertial[2] // 简化的交点计算
+		groundPoint := [3]float64{
+			posJ2000[0] + k*dInertial[0],
+			posJ2000[1] + k*dInertial[1],
+			posJ2000[2] + k*dInertial[2],
+		}
+
+		// 转换到地理坐标
+		lat, lon, _ := ECEFToGeodetic(groundPoint[0], groundPoint[1], groundPoint[2])
+		fmt.Printf("Pixel %d: Latitude: %f, Longitude: %f\n", i, lat, lon)
+	}
+}
diff --git a/cmd/extract.go b/cmd/extract.go
index 0837a0c..c0e37fd 100644
--- a/cmd/extract.go
+++ b/cmd/extract.go
@@ -10,6 +10,7 @@ import (
 var (
 	dataId string
 	batch  bool
+	output string
 )
 
 var extractCmd = &cobra.Command{
@@ -31,7 +32,7 @@ var extractCmd = &cobra.Command{
 		} else {
 			p := &extract.Params{
 				InputData:  fmt.Sprintf("demo/data/%s.dat", dataId),
-				OutputPath: fmt.Sprintf("demo/output/%s", dataId),
+				OutputPath: fmt.Sprintf("%s/%s", output, dataId),
 				TempPath:   fmt.Sprintf("demo/temp/%s", dataId),
 				DataId:     dataId,
 				Satellite:  "SJY01",
@@ -51,16 +52,18 @@ func init() {
 
 	extractCmd.Flags().StringVarP(&dataId, "data-id", "d", "051622", "051622")
 	extractCmd.Flags().BoolVarP(&batch, "batch", "b", false, "true | false")
+	extractCmd.Flags().StringVarP(&output, "out", "o", "demo/output", "demo/output")
 }
 
 func params() []*extract.Params {
 	var params []*extract.Params
-	datas := []string{"051513", "051622",
-		"051712", "051721", "051821", "051823", "051921", "051922", "Q051723"}
+	datas := []string{"051622", "051712", "051721",
+		"051813", "051821", "051823",
+		"051921", "051922", "052022"}
 	for _, d := range datas {
 		params = append(params, &extract.Params{
 			InputData:  fmt.Sprintf("demo/data/%s.dat", d),
-			OutputPath: fmt.Sprintf("demo/output/%s", d),
+			OutputPath: fmt.Sprintf("%s/%s", output, d),
 			TempPath:   fmt.Sprintf("demo/temp/%s", d),
 			DataId:     d,
 			Satellite:  "SJY01",
diff --git a/cmd/parse.go b/cmd/parse.go
index 642e452..1c08a7d 100644
--- a/cmd/parse.go
+++ b/cmd/parse.go
@@ -24,12 +24,14 @@ var parseCmd = &cobra.Command{
 		e := extract.NewExtractor(&params)
 		// p.ParseAuxPlatformWithHead("demo/ref/辅助数据.dat")
 		fmt.Println("Reference Time: 2000-01-01 12:00:00 UTC, seconds:", extract.Time2000UTCSec())
-		_, err := e.ParseAuxPlatform("demo/output/051622/SJY01_PMS_20240516_101236_051622_096.AUX")
+		err := e.ExtractAux("demo/output/051622/SJY01_PMS_20240516_101236_051622_096.AUX",
+			"demo/temp/1.xlsx")
+
 		if err != nil {
 			logrus.Error(err)
 		}
 		// p.ParseAuxEBox("demo/output/SJY01_PMS_20240516_101236_051622_096_EB.AUX")
-		e.ParseAuxPlatform("demo/output/Q052100/SJY01_PMS_20240519_121433_Q052100_102.AUX")
+		// e.ParseAuxPlatform("demo/output/Q052100/SJY01_PMS_20240519_121433_Q052100_102.AUX")
 	},
 }
 
diff --git a/extract/attitude.go b/extract/attitude.go
deleted file mode 100644
index 0cc19c1..0000000
--- a/extract/attitude.go
+++ /dev/null
@@ -1,10 +0,0 @@
-package extract
-
-/*
-   将欧拉角 (yaw, pitch, roll) 转换为旋转矩阵
-
-   参数:
-   - yaw: 偏航角（绕Z轴旋转）
-   - pitch: 俯仰角（绕Y轴旋转）
-   - roll: 滚转角（绕X轴旋转）
-*/
diff --git a/extract/aux.go b/extract/aux.go
index 37d8b85..e643f32 100644
--- a/extract/aux.go
+++ b/extract/aux.go
@@ -1,380 +1,45 @@
 package extract
 
 import (
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"math"
 	"os"
-	"strings"
-	"time"
 
-	"github.com/sirupsen/logrus"
 	log "github.com/sirupsen/logrus"
+	"github.com/tealeg/xlsx"
 )
 
-// 每行传感器数据帧头信息长度为24字节
-type AuxFrameHead struct {
-	PkgHead   [4]byte // 包头头标识符，固定为0xD15BD15B
-	FillByte0 byte    // 填充字节 0x00
-	FrmHead   [6]byte // 帧头标识符，固定为0xEB90EB90EB90
-	// 图像模式
-	// B7	模式标识	000：为线阵模式
-	// B6
-	// B5
-	// B4	B4谱状态	0：不输出1：输出
-	// B3	B3谱状态	0：不输出1：输出
-	// B2	B2谱状态	0：不输出1：输出
-	// B1	B1谱状态	0：不输出1：输出
-	// B0	全色状态	0：不输出1：输出
-	ImgMode     byte
-	SerialNo    uint32 //  当前流水号
-	TimeSec     uint32 //  时间（秒）
-	TimeSecFrac uint32 // 秒小数 量纲：1us/bit，十六进制无符号整型数
-	FileNo      uint8  //  文件号
-
-	IsValidFrmHead bool
-	B0             bool
-	B1             bool
-	B2             bool
-	B3             bool
-	B4             bool
-	IsLinerMatrix  bool
-	RowLength      int
-}
-
-func (afh *AuxFrameHead) Decode(data []byte) error {
-	if len(data) < 24 {
-		return errors.New("length of AuxFrameHead is not 24")
-	}
-
-	afh.PkgHead = [4]byte{data[0], data[1], data[2], data[3]}
-	afh.FillByte0 = data[4]
-	afh.FrmHead = [6]byte{data[5], data[6], data[7], data[8], data[9], data[10]}
-	afh.ImgMode = data[11]
-	afh.B0 = (afh.ImgMode&(1<<0) != 0x0)
-	afh.B1 = (afh.ImgMode&(1<<1) != 0x0)
-	afh.B2 = (afh.ImgMode&(1<<2) != 0x0)
-	afh.B3 = (afh.ImgMode&(1<<3) != 0x0)
-	afh.B4 = (afh.ImgMode&(1<<4) != 0x0)
-	afh.IsLinerMatrix = (afh.ImgMode&(1<<5) == 0x0 && afh.ImgMode&(1<<6) == 0x0 && afh.ImgMode&(1<<7) == 0x0)
-	afh.SerialNo = binary.BigEndian.Uint32(data[12:16])
-	afh.TimeSec = binary.BigEndian.Uint32(data[16:20])
-	afh.TimeSecFrac = uint32(uint32(data[20])<<16 | uint32(data[21])<<8 | uint32(data[22]))
-	afh.FileNo = data[23]
-
-	afh.RowLength = afh.LengthOfRow()
-	afh.IsValidFrmHead = afh.CheckFrmHead()
-
-	return nil
-}
-
-// 计算一行数据长度：帧头+辅助数据+图像数据
-func (afh AuxFrameHead) LengthOfRow() int {
-	if !afh.IsLinerMatrix {
-		return 14344
-	}
-
-	length := 64 // 帧头+辅助数据长度
-	if afh.B0 {
-		length += 19040
-	}
-	if afh.B1 {
-		length += 1192
-	}
-	if afh.B2 {
-		length += 1192
-	}
-	if afh.B3 {
-		length += 1192
-	}
-	if afh.B4 {
-		length += 1192
-	}
-
-	return length
-}
-
-func (afh AuxFrameHead) CheckFrmHead() bool {
-	if afh.FrmHead[0] == 0xEB && afh.FrmHead[1] == 0x90 &&
-		afh.FrmHead[2] == 0xEB && afh.FrmHead[3] == 0x90 &&
-		afh.FrmHead[4] == 0xEB && afh.FrmHead[5] == 0x90 {
-		return true
-	}
-	return false
-}
-
-// 从传输帧文件中分离辅助数据，分别存储到辅助数据文件 _AUX.dat 和图像数据文件 _IMG_{波谱}.dat 中
-func (e *Extractor) SeprateAuxAndImgData(dataFile string, segmentIndex int) error {
-	// 打开传输帧文件 - 一次读入内存
-	data, err := os.ReadFile(dataFile)
-	if err != nil {
-		log.Println("read data from", dataFile, "error:", err.Error())
+func (e Extractor) ExtractAux(auxfile, xlsxfile string) error {
+	if err := createAuxXlxs(xlsxfile); err != nil {
 		return err
 	}
 
-	log.Info("seprate aux and img data from", dataFile)
-
-	dataLen := len(data)
-	log.Info("length of original data: ", dataLen)
-	var firstFrmHead *AuxFrameHead
-	data, firstFrmHead = e.trimImgRawData(data)
-	dataLen = len(data)
-	log.Info("after trim,length of data: ", dataLen)
-	e.quanlityAnalysis(data)
-
-	outputDir := e.params.OutputPath
-	name := strings.Join([]string{
-		e.params.Satellite,
-		"PMS",
-		time.Unix(int64(firstFrmHead.TimeSec)+int64(ReferenceTime2000),
-			int64(firstFrmHead.TimeSecFrac)*1000).
-			Format("20060102_150405"),
-		e.params.DataId,
-		fmt.Sprintf("%03d", firstFrmHead.FileNo),
-	}, "_")
-
-	lw := newL0Writer(outputDir, name)
-	defer lw.Close()
-
-	var panEnviHdr, mssEnviHdr EnviHdr
-
-	var afh AuxFrameHead
-
-	msdata := make([][]byte, 4)
-	var header []byte
-	var ebAux []byte
-	var platAux []byte
-
-	for i := 0; i < dataLen; {
-		if i+4 > dataLen {
-			logrus.Println("end of data, dataLen:", dataLen, "i:", i)
-			break
-		}
-
-		// 包头
-		if data[i] == 0xD1 && data[i+1] == 0x5B && data[i+2] == 0xD1 && data[i+3] == 0x5B {
-			log.Debug("find package head: 0xD15BD15B")
-		} else {
-			i++
-			continue
-		}
-
-		// 解析帧
-		if i+24 > dataLen {
-			log.Info("length of frame head is not engough for frame head")
-			break
-		}
-		afh.Decode(data[i : i+24])
-
-		if !afh.IsValidFrmHead {
-			log.Info("invalid frame head of original raw data")
-			i += 1
-			continue
-		}
-
-		// 目前只支持线阵模式
-		if !afh.IsLinerMatrix {
-			log.Error("not liner matrix mode, only support liner matrix mode")
-			break
-		}
-
-		// 读取一行数据 data[i : i+afh.RowLength]
-		if i+afh.RowLength > dataLen {
-			log.Infof("length of image row data %v is not enough: %v", dataLen-i, afh.RowLength)
-			break
-		}
-
-		auxTime := binary.BigEndian.Uint32(data[i+32 : i+36])
-		if math.Abs(float64(auxTime)-float64(afh.TimeSec)) < 30 {
-			header = append(header, data[i:i+24]...)
-		}
-		// 存储辅助数据到临时文件
-		dataIndex := i + 24
-		// lw.ws[EB_AUX].w.Write(data[dataIndex : dataIndex+8]) // 8字节焦面电箱辅助数据
-		ebAux = append(ebAux, data[dataIndex:dataIndex+8]...)
-		dataIndex += 8
-		// lw.ws[PLAT_AUX].w.Write(data[dataIndex : dataIndex+32]) // 32字节中心机辅助数据
-		platAux = append(platAux, data[dataIndex:dataIndex+32]...)
-		dataIndex += 32
-
-		// 存储图像数据到临时文件 - 以 ENVI BSQ 格式存储，同时提供 HDR 描述文件
-		if afh.B0 {
-			// wpan.Write(data[dataIndex : dataIndex+19040])
-			write16bPixelLittleEndian(lw.ws[PAN_RAW].w, data[dataIndex:dataIndex+19040])
-			dataIndex += 19040
-			panEnviHdr.Lines += 1
-		}
-
-		if afh.B1 {
-			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
-			msdata[0] = append(msdata[0], data[dataIndex:dataIndex+1192]...)
-			dataIndex += 1192
-			mssEnviHdr.Lines += 1
-		}
-		if afh.B2 {
-			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
-			msdata[1] = append(msdata[1], data[dataIndex:dataIndex+1192]...)
-			dataIndex += 1192
-		}
-		if afh.B3 {
-			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
-			msdata[2] = append(msdata[2], data[dataIndex:dataIndex+1192]...)
-			dataIndex += 1192
-		}
-		if afh.B4 {
-			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
-			msdata[3] = append(msdata[3], data[dataIndex:dataIndex+1192]...)
-			dataIndex += 1192
-		}
-		i = dataIndex // 完成一行数据解析
+	wb, err := xlsx.OpenFile(xlsxfile)
+	if err != nil {
+		panic(err)
 	}
 
-	// var bands = 0
-	// for i := 0; i < 4; i++ {
-	// 	if len(msdata[i]) > 0 {
-	// 		log.Println("write mss data of band B", i+1)
-	// 		_, err := write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[i])
-	// 		if err != nil {
-	// 			log.Error("write mss data error:", err.Error())
-	// 		}
-	// 		bands += 1
-	// 	}
-	// }
+	sh := wb.Sheets[0]
 
-	if len(msdata[0]) != len(msdata[1]) || len(msdata[2]) != len(msdata[3]) {
-		log.Error("mss data of bands B1-B4 are not equal")
-		return errors.New("mss data of bands B1-B4 are not equal")
+	data, err := os.ReadFile(auxfile)
+	if err != nil {
+		log.Println("read aux data from", auxfile, "error:", err.Error())
+		return err
 	}
 
-	mssRowLen := 1192 * 4
-	for i := 0; i < len(msdata[0]); i += mssRowLen {
-		var err error
-		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[0][i:i+mssRowLen])
-		if err != nil {
-			log.Error("write mss 1 data error:", err.Error())
-		}
-		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[1][i:i+mssRowLen])
-		if err != nil {
-			log.Error("write mss 2 data error:", err.Error())
-		}
-		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[2][i:i+mssRowLen])
-		if err != nil {
-			log.Error("write mss 3 data error:", err.Error())
-		}
-		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[3][i:i+mssRowLen])
-		if err != nil {
-			log.Error("write mss 4 data error:", err.Error())
-		}
-	}
+	for i := 0; i < len(data); i += 24 + 128 + 512 {
+		row := sh.AddRow()
 
-	panEnviHdr.Samples = 9520
-	panEnviHdr.Bands = 1
-	lw.ws[PAN_HDR].w.Write([]byte(panEnviHdr.String()))
+		var head AuxFrameHead
+		head.Decode(data[i : i+24])
+		head.SaveXlsx(row)
 
-	mssEnviHdr.Lines = mssEnviHdr.Lines / 4 // 多光谱波段分别在 4 行中传输
-	mssEnviHdr.Samples = 2384 * 4
-	mssEnviHdr.Bands = 1
-	lw.ws[MSS_HDR].w.Write([]byte(mssEnviHdr.String()))
+		var box AuxFocalBox
+		box.Decode(data[i+24 : i+24+128])
+		box.SaveXlsx(row)
 
-	// 帧头+辅助数据
-	if len(header)/24 < len(ebAux)/128 || len(ebAux)/128 != len(platAux)/512 {
-		fmt.Println("aux data length:", len(header)/24, len(ebAux)/128, len(platAux)/512)
-		return errors.New("aux data length is not equal")
-	}
-
-	auxRows := len(header) / 24
-	for i := 0; i < auxRows; i++ {
-		lw.ws[AUX].w.Write(header[i*24 : (i+1)*24])
-		lw.ws[AUX].w.Write(ebAux[i*128 : (i+1)*128])
-		lw.ws[AUX].w.Write(platAux[i*512 : (i+1)*512])
+		var plat AuxPlatform
+		plat.Decode(data[i+24+128 : i+24+128+512])
+		box.SaveXlsx(row)
 	}
 
 	return nil
 }
-
-func (e *Extractor) quanlityAnalysis(data []byte) {
-	// 数据质量分析
-	fimg, _ := os.Create("demo/temp/" + e.params.DataId + "/aux.txt")
-	defer fimg.Close()
-	fimg.WriteString("字节数 		帧头流水号 		文件号 		帧头时间 	中心辅助数据前4字节(行33-36)\n")
-
-	var startAuxLine bool
-	var preSN uint32
-	for i := 0; i < len(data); {
-		afh := &AuxFrameHead{}
-		afh.Decode(data[i : i+24])
-
-		if !afh.IsValidFrmHead {
-			log.Errorf("invalid frame head of original raw data i: %v, len: %v", i, len(data))
-			return
-		}
-
-		t := time.Unix(int64(afh.TimeSec+uint32(ReferenceTime2000)), int64(afh.TimeSecFrac)*1000)
-
-		utcTime := binary.BigEndian.Uint32(data[i+32 : i+36])
-		tAux := time.Unix(int64(utcTime+uint32(ReferenceTime2000)), 0)
-
-		startAuxLine = math.Abs(float64(utcTime)-float64(afh.TimeSec)) < 30
-		if startAuxLine {
-			fimg.WriteString(fmt.Sprintf("%d 	%d 		%d 		%s 		%s\n",
-				i,
-				afh.SerialNo,
-				afh.FileNo,
-				t.String(),
-				tAux.String(),
-			))
-
-			if afh.SerialNo-preSN != 16 && preSN != 0 {
-				log.Println("serial number not continuous", afh.SerialNo, preSN)
-			}
-			preSN = afh.SerialNo
-		}
-
-		i += afh.RowLength
-	}
-}
-
-// 裁剪图像数据，只保留有效数据
-func (e *Extractor) trimImgRawData(data []byte) ([]byte, *AuxFrameHead) {
-	var start, end int
-	afh := &AuxFrameHead{}
-	// 将中心辅助数据时间合理的帧作为第一帧
-	var startAuxLine bool
-	for i := 0; i < len(data); {
-		// 解析帧
-		if i+24 > len(data) {
-			log.Info("length of original image frame head is not engough: ", len(data)-i)
-			break
-		}
-
-		if data[i] == 0xD1 && data[i+1] == 0x5B && data[i+2] == 0xD1 && data[i+3] == 0x5B {
-			log.Debug("find package head: 0xD15BD15B")
-		} else {
-			i++
-			continue
-		}
-
-		afh.Decode(data[i : i+24])
-
-		if !afh.IsValidFrmHead {
-			log.Debugf("invalid frame head of original raw data %v", i)
-			i += 1
-			continue
-		}
-
-		utcTime := binary.BigEndian.Uint32(data[i+32 : i+36])               // 相对于2000年的秒数
-		startAuxLine = math.Abs(float64(utcTime)-float64(afh.TimeSec)) < 30 // 时间差小于30秒认为是有效数据
-		if !startAuxLine {
-			i += afh.RowLength
-		} else {
-			start = i
-			nLen := (len(data) - i - 1)
-			nLen = nLen - nLen%(afh.RowLength*16)
-			end = i + nLen
-			break
-		}
-	}
-
-	return data[start:end], afh
-}
diff --git a/extract/aux_ebox.go b/extract/aux_ebox.go
index 7cc22e0..13dc718 100644
--- a/extract/aux_ebox.go
+++ b/extract/aux_ebox.go
@@ -6,6 +6,7 @@ import (
 
 	"github.com/k0kubun/pp/v3"
 	"github.com/sirupsen/logrus"
+	"github.com/tealeg/xlsx"
 )
 
 // 卫星时间起点 北京时间 2000-01-01 20:00:00
@@ -140,6 +141,10 @@ func (ab AuxFocalBox) PGAGainValue() string {
 	}
 }
 
+func (ab AuxFocalBox) SaveXlsx(row *xlsx.Row) error {
+	return nil
+}
+
 func (e *Extractor) ParseAuxEBox(auxfile string) ([]*AuxFocalBox, error) {
 	data, err := os.ReadFile(auxfile)
 	if err != nil {
diff --git a/extract/aux_elements.go b/extract/aux_elements.go
new file mode 100644
index 0000000..16bc4b3
--- /dev/null
+++ b/extract/aux_elements.go
@@ -0,0 +1,436 @@
+package extract
+
+import "github.com/tealeg/xlsx"
+
+func createAuxXlxs(fname string) error {
+	nwb := xlsx.NewFile()
+	sheet, err := nwb.AddSheet("辅助数据")
+	if err != nil {
+		panic(err)
+	}
+	row := sheet.AddRow()
+	for _, header := range AuxHeader {
+		cell := row.AddCell()
+		cell.SetString(header)
+	}
+	return nwb.Save(fname)
+}
+
+var AuxHeader = []string{
+	"包头信息",
+	"填充位",
+	"帧头信息",
+	"当前图像模式",
+	"B4谱状态",
+	"B3谱状态",
+	"B2谱状态",
+	"B1谱状态",
+	"全色状态",
+	"当前行流水号",
+	"时间秒",
+	"秒小数",
+	"文件号",
+	"执行行转移时间",
+	"Trainingdone",
+	"工作模式",
+	"积分方向",
+	"PGA增益",
+	"P谱段积分级数",
+	"B1积分级数",
+	"B2积分级数",
+	"B3积分级数",
+	"B4积分级数",
+	"秒脉冲状态",
+	"保留",
+	"暗场偏置",
+	"全色开窗地址",
+	"多光谱1开窗地址",
+	"多光谱2开窗地址",
+	"多光谱3开窗地址",
+	"多光谱4开窗地址",
+	"面阵模式Linetime时钟周期数",
+	"面阵模式开窗地址",
+	"面阵模式开窗大小",
+	"面阵曝光时间粗调EXP_C",
+	"面阵曝光时间精调EXP_F",
+	"面阵模式最小读出行",
+	"硬盘1温度",
+	"硬盘2温度",
+	"保留",
+	"传感器温度",
+	"FPGA逻辑版本号",
+	"工作模式",
+	"原始盘可用存储容量",
+	"压缩盘可用存储容量",
+	"原始盘状态",
+	"原始盘Host初始化状态",
+	"原始盘SATA控制器状态",
+	"原始盘SATA错误计数",
+	"压缩盘状态",
+	"压缩盘Host初始化状态",
+	"压缩盘SATA控制器状态",
+	"压缩盘SATA错误计数",
+	"保留",
+	"DDR初始化状态",
+	"原始图像硬盘状态",
+	"压缩数据硬盘状态",
+	"硬盘1读写状态",
+	"硬盘2读写状态",
+	"硬盘1初始化状态",
+	"硬盘2初始化状态",
+	"保留",
+	"保留",
+	"硬盘1禁用标志",
+	"硬盘2禁用标志",
+	"保留",
+	"B2数据移位",
+	"B1数据移位",
+	"B4数据移位",
+	"B3数据移位",
+	"指令计数",
+	"最后一条指令编码",
+	"指令接收状态",
+	"错误指令计数",
+	"错误指令帧编号",
+	"保留",
+	"传感器数字电路温度",
+	"卫星UTC时间秒",
+	"卫星复波道标志位",
+	"卫星秒小数",
+	"定姿四元数(J2000)q0",
+	"定姿四元数(J2000)q1",
+	"定姿四元数(J2000)q2",
+	"定姿四元数(J2000)q3",
+	"本体相对轨道四元数矢部q1",
+	"本体相对轨道四元数矢部q2",
+	"本体相对轨道四元数矢部q3",
+	"轨道相对惯性系四元数矢部q1",
+	"轨道相对惯性系四元数矢部q2",
+	"轨道相对惯性系四元数矢部q3",
+	"本体相对轨道姿态角1",
+	"本体相对轨道姿态角2",
+	"本体相对轨道姿态角3",
+	"本体相对轨道角速度1",
+	"本体相对轨道角速度2",
+	"本体相对轨道角速度3",
+	"模式运行时间",
+	"姿控调用周期",
+	"姿轨控部件使用标志",
+	"姿轨控算法执行标记",
+	"偏差四元数q1",
+	"偏差四元数q2",
+	"偏差四元数q3",
+	"偏差角速度1",
+	"偏差角速度2",
+	"偏差角速度3",
+	"X飞轮估计摩擦力矩",
+	"Y飞轮估计摩擦力矩",
+	"Z飞轮估计摩擦力矩",
+	"三轴陀螺X轴角速度漂移估计",
+	"三轴陀螺Y轴角速度漂移估计",
+	"三轴陀螺Z轴角速度漂移估计",
+	"三轴角速度卡尔曼漂移X",
+	"三轴角速度卡尔曼漂移Y",
+	"三轴角速度卡尔曼漂移Z",
+	"X轴估计环境干扰力矩",
+	"Y轴估计环境干扰力矩",
+	"Z轴估计环境干扰力矩",
+	"X轴计算飞轮控制力矩",
+	"Y轴计算飞轮控制力矩",
+	"Z轴计算飞轮控制力矩",
+	"期望四元数矢部1",
+	"期望四元数矢部2",
+	"期望四元数矢部3",
+	"期望角速度1",
+	"期望角速度2",
+	"期望角速度3",
+	"计算当前J2000位置X",
+	"计算当前J2000位置Y",
+	"计算当前J2000位置Z",
+	"计算当前J2000速度X",
+	"计算当前J2000速度Y",
+	"计算当前J2000速度Z",
+	"计算当前84位置X",
+	"计算当前84位置Y",
+	"计算当前84位置Z",
+	"计算当前84速度X",
+	"计算当前84速度Y",
+	"计算当前84速度Z",
+	"偏流角",
+	"数传点经度",
+	"数传点纬度",
+	"数传点地程高",
+	"定姿方式标志1",
+	"定姿方式标志2",
+	"定姿方式标志3",
+	"X飞轮期望转速",
+	"Y飞轮期望转速",
+	"Z飞轮期望转速",
+	"保留",
+	"保留",
+	"保留",
+	"保留",
+	"锂电池温度",
+	"相机主镜温度",
+	"相机次镜温度",
+	"推进模块温度",
+	"负X侧相机桁架杆温度",
+	"正X正Y侧相机桁架杆温度",
+	"正X负Y侧相机桁架杆温度",
+	"正X侧相机支撑背板温度",
+	"负X侧相机支撑背板温度",
+	"星敏支架温度",
+	"成像电箱温度",
+	"正Y帆板温度",
+	"电源下位机温度",
+	"配电热控驱动温度",
+	"电源控制器温度",
+	"数字太阳敏矢量数据有效位",
+	"数字太阳敏矢量数据X",
+	"数字太阳敏矢量数据Y",
+	"数字太阳敏位置X1",
+	"数字太阳敏位置X2",
+	"数字太阳敏位置Y1",
+	"数字太阳敏位置Y2",
+	"太阳敏温度",
+	"数字太阳敏当前正在使用的阈值（源码）",
+	"数字太阳敏当前正在使用的增益",
+	"保留",
+	"保留",
+	"保留",
+	"错误码计数",
+	"单粒子错误计数",
+	"配电错误码1",
+	"配电错误码2",
+	"配电错误码3",
+	"配电错误码4",
+	"配电错误码5",
+	"GPS天内秒",
+	"GPSUTC时间累计秒",
+	"太阳阵电流",
+	"母线电流",
+	"负载电流",
+	"蓄电池电压",
+	"电源母线电压",
+	"CPU5.2V电压遥测值",
+	"5.2V配电电压遥测值",
+	"保留",
+	"蓄电池组当前电量",
+	"模式运行时间秒",
+	"卫星现运行模式",
+	"组合业务标识",
+	"当前业务状态",
+	"中心机指令接收总计数",
+	"中心机错误指令计数",
+	"执行指令所在分系统",
+	"执行指令的指令代码",
+	"执行延时指令总计数",
+	"当前延时指令计数",
+	"执行延时指令所在分系统",
+	"执行延时指令的指令代码",
+	"当前延时业务计数",
+	"成功执行业务计数",
+	"异常中止业务计数",
+	"指令执行状态",
+	"业务异常中止状态",
+	"测控数传一体机通信状态",
+	"保留",
+	"北斗短报文通信状态",
+	"GPS接收机通信状态",
+	"数字太阳敏通信状态",
+	"星敏1通信状态",
+	"星敏2通信状态",
+	"光纤陀螺通信状态",
+	"MEMS陀螺通信状态",
+	"飞轮1通信状态",
+	"飞轮2通信状态",
+	"飞轮3通信状态",
+	"飞轮4通信状态",
+	"智能载荷通信状态",
+	"保留",
+	"保留",
+	"电磁阀开关状态",
+	"业务保存状态",
+	"卫星类型标识",
+	"卫星序号标识",
+	"保留",
+	"保留",
+	"保留",
+	"保留",
+	"锂电池加热器通断状态",
+	"相机主镜加热器通断状态",
+	"相机次镜加热器通断状态",
+	"推进模块加热器通断状态",
+	"相机负X侧桁架杆加热器通断状态",
+	"成像电箱加热器通断状态",
+	"相机正X正Y侧桁架杆加热器通断状态",
+	"相机正X负Y侧桁架杆加热器通断状态",
+	"相机正X侧支撑背板加热器通断状态",
+	"相机负X侧支撑背板加热器通断状态",
+	"星敏支架加热器通断状态",
+	"保留",
+	"温度修正系数校验状态",
+	"电源下位机广播帧监视功能",
+	"当前控温码表",
+	"默认控温码表",
+	"飞轮1电源供电状态",
+	"飞轮2电源供电状态",
+	"飞轮3电源供电状态",
+	"SADA1电源供电状态",
+	"SADA2电源供电状态",
+	"测控数传电源供电状态",
+	"保留",
+	"保留",
+	"北斗短报文供电状态",
+	"推进电源供电状态",
+	"焦面电源供电状态",
+	"飞轮4电源供电状态",
+	"星敏1电源供电状态",
+	"星敏2电源供电状态",
+	"数字太阳敏电源供电状态",
+	"导航电源供电状态",
+	"三轴光纤陀螺电源供电状态",
+	"MEMS陀螺电源供电状态",
+	"热控正线状态",
+	"热控1状态",
+	"热控2状态",
+	"保留",
+	"保留",
+	"保留",
+	"锂电池加热器控温模式",
+	"相机主镜加热器控温模式",
+	"相机次镜加热器控温模式",
+	"推进模块加热器控温模式",
+	"相机负X侧桁架杆加热器控温模式",
+	"相机正X正Y侧桁架杆加热器控温模式",
+	"相机正X负Y侧桁架杆加热器控温模式",
+	"相机正X侧支撑背板加热器控温模式",
+	"相机负X侧支撑背板加热器控温模式",
+	"星敏支架加热器控温模式",
+	"成像电箱加热器控温模式",
+	"保留",
+	"保留",
+	"保留",
+	"保留",
+	"保留",
+	"保留",
+	"保留",
+	"接收机时间来源",
+	"定位模式",
+	"轨道数据有效标示",
+	"主备机标志",
+	"PPS状态",
+	"GPS最高信噪比",
+	"BD最高信噪比",
+	"参与定位的GPS导航星数",
+	"参与定位的BD导航星数",
+	"GPS几何精度因子",
+	"GPS连续工作时间",
+	"保留",
+	"保留",
+	"WGS-84系X位置",
+	"WGS-84系Y位置",
+	"WGS-84系Z位置",
+	"WGS-84系X速度",
+	"WGS-84系Y速度",
+	"WGS-84系Z速度",
+	"J2000系X位置",
+	"J2000系Y位置",
+	"J2000系Z位置",
+	"J2000系X速度",
+	"J2000系Y速度",
+	"J2000系Z速度",
+	"三轴光纤陀螺X轴角速度",
+	"三轴光纤陀螺Y轴角速度",
+	"三轴光纤陀螺Z轴角速度",
+	"三轴光纤陀螺X轴角速度（1）",
+	"三轴光纤陀螺Y轴角速度（1）",
+	"三轴光纤陀螺Z轴角速度（1）",
+	"星敏AUTC时间",
+	"星敏AUTC秒小数",
+	"星敏A四元数q1",
+	"星敏A四元数q2",
+	"星敏A四元数q3",
+	"星敏A四元数q4",
+	"星敏A曝光时间",
+	"星敏A阈值",
+	"星敏A背景值",
+	"星敏A上电进入boot标志",
+	"星敏AEDAC打开标志",
+	"星敏A程序版本",
+	"星敏A四元数滤波标志",
+	"星敏A系统内部工作进程代号",
+	"星敏A系统工作模式",
+	"星敏A提取星数",
+	"星敏A四元数有效时导航星数",
+	"星敏A图像增益",
+	"星敏A识别星数",
+	"星敏A打开或者关断外部图像",
+	"星敏A姿态数据有效标志",
+	"星敏A内部软件版本号低3位",
+	"星敏A产品设备编号低5位",
+	"星敏A成像传感器温度",
+	"星敏A在轨EDAC错误计数",
+	"星敏A图像帧号",
+	"星敏A四星寻找阈值",
+	"星敏A跟踪阈值",
+	"星敏ASAA阈值",
+	"星敏ASAA工作模式",
+	"星敏A动态模式标志位",
+	"星敏AX方向角速度",
+	"星敏AY方向角速度",
+	"星敏AZ方向角速度",
+	"星敏A星点阈值自适应功能",
+	"保留",
+	"星敏A速率质量",
+	"星敏BUTC时间",
+	"星敏BUTC秒小数",
+	"星敏B四元数q1",
+	"星敏B四元数q2",
+	"星敏B四元数q3",
+	"星敏B四元数q4",
+	"星敏B曝光时间",
+	"星敏B阈值",
+	"星敏B背景值",
+	"星敏B上电进入boot标志",
+	"星敏BEDAC打开标志",
+	"星敏B程序版本",
+	"星敏B四元数滤波标志",
+	"星敏B系统内部工作进程代号",
+	"星敏B系统工作模式",
+	"星敏B提取星数",
+	"星敏B四元数有效时导航星数",
+	"星敏B图像增益",
+	"星敏B识别星数",
+	"星敏B打开或者关断外部图像",
+	"星敏B姿态数据有效标志",
+	"星敏B内部软件版本号低3位",
+	"星敏B产品设备编号低5位",
+	"星敏B成像传感器温度",
+	"星敏B在轨EDAC错误计数",
+	"星敏B图像帧号",
+	"星敏B四星寻找阈值",
+	"星敏B跟踪阈值",
+	"星敏BSAA阈值",
+	"星敏BSAA工作模式",
+	"星敏B动态模式标志位",
+	"保留",
+	"飞轮1转速",
+	"飞轮1当前电流",
+	"飞轮2转速",
+	"飞轮2当前电流",
+	"飞轮3转速",
+	"飞轮3当前电流",
+	"飞轮4转速",
+	"飞轮4当前电流",
+	"MEMS陀螺X方向角速度",
+	"MEMS陀螺Y方向角速度",
+	"MEMS陀螺Z方向角速度",
+	"X方向磁场强度",
+	"Y方向磁场强度",
+	"Z方向磁场强度",
+	"输入姿轨控数据UTC时间秒",
+	"输入姿轨控数据时间秒小数",
+	"保留",
+	"校验和",
+}
diff --git a/extract/aux_head.go b/extract/aux_head.go
new file mode 100644
index 0000000..d2d8816
--- /dev/null
+++ b/extract/aux_head.go
@@ -0,0 +1,138 @@
+package extract
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+
+	"github.com/tealeg/xlsx"
+)
+
+// 每行传感器数据帧头信息长度为24字节
+type AuxFrameHead struct {
+	PkgHead   [4]byte // 包头头标识符，固定为0xD15BD15B
+	FillByte0 byte    // 填充字节 0x00
+	FrmHead   [6]byte // 帧头标识符，固定为0xEB90EB90EB90
+	// 图像模式
+	// B7	模式标识	000：为线阵模式
+	// B6
+	// B5
+	// B4	B4谱状态	0：不输出1：输出
+	// B3	B3谱状态	0：不输出1：输出
+	// B2	B2谱状态	0：不输出1：输出
+	// B1	B1谱状态	0：不输出1：输出
+	// B0	全色状态	0：不输出1：输出
+	ImgMode     byte
+	SerialNo    uint32 //  当前流水号
+	TimeSec     uint32 //  时间（秒）
+	TimeSecFrac uint32 // 秒小数 量纲：1us/bit，十六进制无符号整型数
+	FileNo      uint8  //  文件号
+
+	IsValidFrmHead bool
+	B0             bool
+	B1             bool
+	B2             bool
+	B3             bool
+	B4             bool
+	IsLinerMatrix  bool
+	RowLength      int
+}
+
+func (afh *AuxFrameHead) Decode(data []byte) error {
+	if len(data) < 24 {
+		return errors.New("length of AuxFrameHead is not 24")
+	}
+
+	afh.PkgHead = [4]byte{data[0], data[1], data[2], data[3]}
+	afh.FillByte0 = data[4]
+	afh.FrmHead = [6]byte{data[5], data[6], data[7], data[8], data[9], data[10]}
+	afh.ImgMode = data[11]
+	afh.B0 = (afh.ImgMode&(1<<0) != 0x0)
+	afh.B1 = (afh.ImgMode&(1<<1) != 0x0)
+	afh.B2 = (afh.ImgMode&(1<<2) != 0x0)
+	afh.B3 = (afh.ImgMode&(1<<3) != 0x0)
+	afh.B4 = (afh.ImgMode&(1<<4) != 0x0)
+	afh.IsLinerMatrix = (afh.ImgMode&(1<<5) == 0x0 && afh.ImgMode&(1<<6) == 0x0 && afh.ImgMode&(1<<7) == 0x0)
+	afh.SerialNo = binary.BigEndian.Uint32(data[12:16])
+	afh.TimeSec = binary.BigEndian.Uint32(data[16:20])
+	afh.TimeSecFrac = uint32(uint32(data[20])<<16 | uint32(data[21])<<8 | uint32(data[22]))
+	afh.FileNo = data[23]
+
+	afh.RowLength = afh.LengthOfRow()
+	afh.IsValidFrmHead = afh.CheckFrmHead()
+
+	return nil
+}
+
+// 计算一行数据长度：帧头+辅助数据+图像数据
+func (afh AuxFrameHead) LengthOfRow() int {
+	if !afh.IsLinerMatrix {
+		return 14344
+	}
+
+	length := 64 // 帧头+辅助数据长度
+	if afh.B0 {
+		length += 19040
+	}
+	if afh.B1 {
+		length += 1192
+	}
+	if afh.B2 {
+		length += 1192
+	}
+	if afh.B3 {
+		length += 1192
+	}
+	if afh.B4 {
+		length += 1192
+	}
+
+	return length
+}
+
+func (afh AuxFrameHead) CheckFrmHead() bool {
+	if afh.FrmHead[0] == 0xEB && afh.FrmHead[1] == 0x90 &&
+		afh.FrmHead[2] == 0xEB && afh.FrmHead[3] == 0x90 &&
+		afh.FrmHead[4] == 0xEB && afh.FrmHead[5] == 0x90 {
+		return true
+	}
+	return false
+}
+
+func (afh AuxFrameHead) SaveXlsx(row *xlsx.Row) error {
+	values := []string{
+		fmt.Sprintf("0x%x", afh.PkgHead),
+		"",
+		fmt.Sprintf("0x%x", afh.FrmHead),
+		afh.ImageMode(),
+		afh.BandStatus(afh.B4),
+		afh.BandStatus(afh.B3),
+		afh.BandStatus(afh.B2),
+		afh.BandStatus(afh.B1),
+		afh.BandStatus(afh.B0),
+		fmt.Sprintf("%d", afh.SerialNo),
+		fmt.Sprintf("%d", afh.TimeSec),
+		fmt.Sprintf("%d", afh.TimeSecFrac),
+		fmt.Sprintf("%d", afh.FileNo),
+	}
+
+	for _, v := range values {
+		row.AddCell().SetString(v)
+	}
+
+	return nil
+}
+
+func (afh AuxFrameHead) ImageMode() string {
+	if afh.IsLinerMatrix {
+		return "线阵模式"
+	}
+	return "面阵模式"
+}
+
+func (afh AuxFrameHead) BandStatus(b bool) string {
+	if b {
+		return "输出"
+	}
+	return "不输出"
+}
diff --git a/extract/aux_platform.go b/extract/aux_platform.go
index ffdf32f..24c14d9 100644
--- a/extract/aux_platform.go
+++ b/extract/aux_platform.go
@@ -7,7 +7,8 @@ import (
 	"time"
 
 	"github.com/k0kubun/pp/v3"
-	"github.com/sirupsen/logrus"
+	"github.com/tealeg/xlsx"
+
 	log "github.com/sirupsen/logrus"
 	"starwiz.cn/sjy01/preprocessing/calculator"
 )
@@ -129,7 +130,7 @@ type AuxPlatform struct {
 	SS1_ExtenalImage   bool    // [407.(1)] 星敏1外部图像标志位 0x01：外部图像；0x00：关闭
 	SS1_AttitudeActive bool    // [407.(0)] 星敏1姿态有效标志位 0x01：激活；0x00：关闭
 	SS1_ImgFrmNo       uint32  // [411-413] 星敏1图像帧号
-	SS1_XAV            float64 // [417-418] 星敏1X方向角速度 单位：2-11 °/s
+	SS1_XAV            float64 // [417-418] 星敏1X方向角速度 单位：2e-11 °/s
 	SS1_YAV            float64 // [419-420]
 	SS1_ZAV            float64 // [421-422]
 	SS2_UTCTime        uint32  // [424-427] 星敏2 UTC时间
@@ -170,7 +171,7 @@ type AuxPlatform struct {
 	CheckSum           byte    // [512] 校验和
 }
 
-func (ap *AuxPlatform) Parse(data []byte) error {
+func (ap *AuxPlatform) Decode(data []byte) error {
 	if len(data) < 512 {
 		return ErrAuxPlatformDataLen
 	}
@@ -337,19 +338,23 @@ func (ap AuxPlatform) Print() {
 	pp.Println(ap)
 }
 
+func (ap AuxPlatform) SaveXlsx(row *xlsx.Row) error {
+	return nil
+}
+
 // Extractor 辅助数据提取器
 // auxfile 辅助数据文件路径
 func (e *Extractor) ParseAuxPlatform(auxfile string) ([]*AuxPlatform, error) {
 	data, err := os.ReadFile(auxfile)
 	if err != nil {
-		logrus.Println("read aux data from", auxfile, "error:", err.Error())
+		log.Println("read aux data from", auxfile, "error:", err.Error())
 		return nil, err
 	}
 
 	var aps []*AuxPlatform
 	for i := 0; i < len(data); i += 24 + 128 + 512 {
 		ap := AuxPlatform{}
-		if err := ap.Parse(data[i+24+128 : i+24+128+512]); err != nil {
+		if err := ap.Decode(data[i+24+128 : i+24+128+512]); err != nil {
 			return nil, err
 		}
 
@@ -387,7 +392,7 @@ func (e *Extractor) ParseAuxPlatform(auxfile string) ([]*AuxPlatform, error) {
 func (e *Extractor) ParseAuxPlatformWithHead(auxfile string) ([]*AuxPlatform, error) {
 	data, err := os.ReadFile(auxfile)
 	if err != nil {
-		logrus.Println("read aux data from", auxfile, "error:", err.Error())
+		log.Println("read aux data from", auxfile, "error:", err.Error())
 		return nil, err
 	}
 
diff --git a/extract/calculator.go b/extract/calculator.go
deleted file mode 100644
index 0f5bb0f..0000000
--- a/extract/calculator.go
+++ /dev/null
@@ -1,114 +0,0 @@
-package extract
-
-import (
-	"fmt"
-	"math"
-)
-
-// 定义常数
-const (
-	GM = 3.986004418e14 // 地球引力常数（m^3/s^2）
-	Re = 6378137.0      // 地球半径（m）
-)
-
-// 四元数
-type Quaternion struct {
-	w, x, y, z float64
-}
-
-// 矢量
-type Vector3 struct {
-	x, y, z float64
-}
-
-// 计算轨道参数
-func calculateOrbitalParameters(position, velocity Vector3) (float64, float64, float64, float64, float64) {
-	r := math.Sqrt(position.x*position.x + position.y*position.y + position.z*position.z)
-	v := math.Sqrt(velocity.x*velocity.x + velocity.y*velocity.y + velocity.z*velocity.z)
-
-	// 计算轨道参数
-	energy := 0.5*v*v - GM/r // 比能
-	a := -GM / (2 * energy)  // 轨道半长轴
-	e := math.Sqrt(1 - (math.Pow(math.Sqrt(math.Pow(position.x*velocity.y-position.y*velocity.x, 2)+
-		math.Pow(position.y*velocity.z-position.z*velocity.y, 2)+
-		math.Pow(position.z*velocity.x-position.x*velocity.z, 2)), 2) / (GM * a)))
-	i := math.Acos(position.z / r)                                                                                // 轨道倾角
-	Omega := math.Atan2(position.x, -position.y)                                                                  // 升交点赤经
-	omega := math.Atan2(position.z*velocity.x-position.x*velocity.z, position.x*velocity.y-position.y*velocity.x) // 升交点赤纬
-	return a, e, i * 180 / math.Pi, Omega * 180 / math.Pi, omega * 180 / math.Pi
-}
-
-// 四元数到旋转矩阵
-func quaternionToRotationMatrix(q Quaternion) [3][3]float64 {
-	w, x, y, z := q.w, q.x, q.y, q.z
-	return [3][3]float64{
-		{1 - 2*y*y - 2*z*z, 2*x*y - 2*z*w, 2*x*z + 2*y*w},
-		{2*x*y + 2*z*w, 1 - 2*x*x - 2*z*z, 2*y*z - 2*x*w},
-		{2*x*z - 2*y*w, 2*y*z + 2*x*w, 1 - 2*x*x - 2*y*y},
-	}
-}
-
-// 向量加法
-func add(v1, v2 Vector3) Vector3 {
-	return Vector3{v1.x + v2.x, v1.y + v2.y, v1.z + v2.z}
-}
-
-// 向量数乘
-func scale(v Vector3, c float64) Vector3 {
-	return Vector3{v.x * c, v.y * c, v.z * c}
-}
-
-// 矩阵乘法
-func matrixMult(m [3][3]float64, v Vector3) Vector3 {
-	return Vector3{
-		m[0][0]*v.x + m[0][1]*v.y + m[0][2]*v.z,
-		m[1][0]*v.x + m[1][1]*v.y + m[1][2]*v.z,
-		m[2][0]*v.x + m[2][1]*v.y + m[2][2]*v.z,
-	}
-}
-
-// 计算图像位置
-func calculateImagePosition(roll, pitch, yaw float64, quat Quaternion, satellitePos, satelliteVel Vector3) (float64, float64) {
-	// 将角度转换为弧度
-	roll = roll * math.Pi / 180
-	pitch = pitch * math.Pi / 180
-	yaw = yaw * math.Pi / 180
-
-	// 构造旋转矩阵
-	R := quaternionToRotationMatrix(quat)
-	// 传感器坐标系中的Z轴向量
-	sensorZ := Vector3{0, 0, 1}
-	// 将Z轴向量通过旋转矩阵转换到卫星坐标系中
-	lineOfSight := matrixMult(R, sensorZ)
-
-	// 计算交点经纬度
-	lat := math.Asin(lineOfSight.z) * 180 / math.Pi
-	lon := math.Atan2(lineOfSight.y, lineOfSight.x) * 180 / math.Pi
-
-	return lat, lon
-}
-
-func Calculate(satellitePos, satelliteVel Vector3, quat Quaternion) {
-	// 假设一些已知数据
-	// satellitePos := Vector3{x: 7000e3, y: 0, z: 0}       // 假设一个简单的地心坐标位置
-	// satelliteVel := Vector3{x: 0, y: 7.5e3, z: 0}        // 假设一个简单的速度
-	// quat := Quaternion{w: 0.7071, x: 0.7071, y: 0, z: 0} // 假设一个简单的四元数
-	roll := 0.0
-	pitch := 0.0
-	yaw := 0.0
-
-	// 计算轨道参数
-	a, e, i, Omega, omega := calculateOrbitalParameters(satellitePos, satelliteVel)
-
-	// 打印轨道参数
-	fmt.Println("轨道参数：")
-	fmt.Printf("轨道半长轴 (a): %.2f m\n", a)
-	fmt.Printf("偏心率 (e): %.6f\n", e)
-	fmt.Printf("轨道倾角 (i): %.2f 度\n", i)
-	fmt.Printf("升交点赤经 (Ω): %.2f 度\n", Omega)
-	fmt.Printf("近地点幅角 (ω): %.2f 度\n", omega)
-
-	// 计算图像位置
-	lat, lon := calculateImagePosition(roll, pitch, yaw, quat, satellitePos, satelliteVel)
-	fmt.Printf("\n图像位置：\n纬度: %.6f\n经度: %.6f\n", lat, lon)
-}
diff --git a/extract/envi.go b/extract/envi.go
index 5811506..3a12f3d 100644
--- a/extract/envi.go
+++ b/extract/envi.go
@@ -4,18 +4,9 @@ import (
 	"bytes"
 	"html"
 
-	"io"
-	"os"
 	"text/template"
 )
 
-type BSQWriter struct {
-	filepath string
-	fio      *os.File
-	w        io.Writer
-	content  *EnviHdr
-}
-
 var HDRTemplate = `ENVI
 description = {
   File Imported into ENVI.}
diff --git a/extract/orbit.go b/extract/orbit.go
deleted file mode 100644
index 7e3d3b9..0000000
--- a/extract/orbit.go
+++ /dev/null
@@ -1 +0,0 @@
-package extract
diff --git a/extract/seperate.go b/extract/seperate.go
new file mode 100644
index 0000000..20b9bec
--- /dev/null
+++ b/extract/seperate.go
@@ -0,0 +1,289 @@
+package extract
+
+import (
+	"encoding/binary"
+	"errors"
+	"fmt"
+	"math"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/sirupsen/logrus"
+	log "github.com/sirupsen/logrus"
+)
+
+// 从传输帧文件中分离辅助数据，分别存储到辅助数据文件 _AUX.dat 和图像数据文件 _IMG_{波谱}.dat 中
+func (e *Extractor) SeprateAuxAndImgData(dataFile string, segmentIndex int) error {
+	// 打开传输帧文件 - 一次读入内存
+	data, err := os.ReadFile(dataFile)
+	if err != nil {
+		log.Println("read data from", dataFile, "error:", err.Error())
+		return err
+	}
+
+	log.Info("seprate aux and img data from", dataFile)
+
+	dataLen := len(data)
+	log.Info("length of original data: ", dataLen)
+	var firstFrmHead *AuxFrameHead
+	data, firstFrmHead = e.trimImgRawData(data)
+	dataLen = len(data)
+	log.Info("after trim,length of data: ", dataLen)
+	e.quanlityAnalysis(data)
+
+	outputDir := e.params.OutputPath
+	name := strings.Join([]string{
+		e.params.Satellite,
+		"PMS",
+		time.Unix(int64(firstFrmHead.TimeSec)+int64(ReferenceTime2000),
+			int64(firstFrmHead.TimeSecFrac)*1000).
+			Format("20060102_150405"),
+		e.params.DataId,
+		fmt.Sprintf("%03d", firstFrmHead.FileNo),
+	}, "_")
+
+	lw := newL0Writer(outputDir, name)
+	defer lw.Close()
+
+	var panEnviHdr, mssEnviHdr EnviHdr
+
+	var afh AuxFrameHead
+
+	msdata := make([][]byte, 4)
+	var header []byte
+	var ebAux []byte
+	var platAux []byte
+
+	for i := 0; i < dataLen; {
+		if i+4 > dataLen {
+			logrus.Println("end of data, dataLen:", dataLen, "i:", i)
+			break
+		}
+
+		// 包头
+		if data[i] == 0xD1 && data[i+1] == 0x5B && data[i+2] == 0xD1 && data[i+3] == 0x5B {
+			log.Debug("find package head: 0xD15BD15B")
+		} else {
+			i++
+			continue
+		}
+
+		// 解析帧
+		if i+24 > dataLen {
+			log.Info("length of frame head is not engough for frame head")
+			break
+		}
+		afh.Decode(data[i : i+24])
+
+		if !afh.IsValidFrmHead {
+			log.Info("invalid frame head of original raw data")
+			i += 1
+			continue
+		}
+
+		// 目前只支持线阵模式
+		if !afh.IsLinerMatrix {
+			log.Error("not liner matrix mode, only support liner matrix mode")
+			break
+		}
+
+		// 读取一行数据 data[i : i+afh.RowLength]
+		if i+afh.RowLength > dataLen {
+			log.Infof("length of image row data %v is not enough: %v", dataLen-i, afh.RowLength)
+			break
+		}
+
+		auxTime := binary.BigEndian.Uint32(data[i+32 : i+36])
+		if math.Abs(float64(auxTime)-float64(afh.TimeSec)) < 30 {
+			header = append(header, data[i:i+24]...)
+		}
+		// 存储辅助数据到临时文件
+		dataIndex := i + 24
+		// lw.ws[EB_AUX].w.Write(data[dataIndex : dataIndex+8]) // 8字节焦面电箱辅助数据
+		ebAux = append(ebAux, data[dataIndex:dataIndex+8]...)
+		dataIndex += 8
+		// lw.ws[PLAT_AUX].w.Write(data[dataIndex : dataIndex+32]) // 32字节中心机辅助数据
+		platAux = append(platAux, data[dataIndex:dataIndex+32]...)
+		dataIndex += 32
+
+		// 存储图像数据到临时文件 - 以 ENVI BSQ 格式存储，同时提供 HDR 描述文件
+		if afh.B0 {
+			// wpan.Write(data[dataIndex : dataIndex+19040])
+			write16bPixelLittleEndian(lw.ws[PAN_RAW].w, data[dataIndex:dataIndex+19040])
+			dataIndex += 19040
+			panEnviHdr.Lines += 1
+		}
+
+		if afh.B1 {
+			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
+			msdata[0] = append(msdata[0], data[dataIndex:dataIndex+1192]...)
+			dataIndex += 1192
+			mssEnviHdr.Lines += 1
+		}
+		if afh.B2 {
+			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
+			msdata[1] = append(msdata[1], data[dataIndex:dataIndex+1192]...)
+			dataIndex += 1192
+		}
+		if afh.B3 {
+			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
+			msdata[2] = append(msdata[2], data[dataIndex:dataIndex+1192]...)
+			dataIndex += 1192
+		}
+		if afh.B4 {
+			// write16bPixelLittleEndian(wmss, data[dataIndex:dataIndex+1192])
+			msdata[3] = append(msdata[3], data[dataIndex:dataIndex+1192]...)
+			dataIndex += 1192
+		}
+		i = dataIndex // 完成一行数据解析
+	}
+
+	// var bands = 0
+	// for i := 0; i < 4; i++ {
+	// 	if len(msdata[i]) > 0 {
+	// 		log.Println("write mss data of band B", i+1)
+	// 		_, err := write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[i])
+	// 		if err != nil {
+	// 			log.Error("write mss data error:", err.Error())
+	// 		}
+	// 		bands += 1
+	// 	}
+	// }
+
+	if len(msdata[0]) != len(msdata[1]) || len(msdata[2]) != len(msdata[3]) {
+		log.Error("mss data of bands B1-B4 are not equal")
+		return errors.New("mss data of bands B1-B4 are not equal")
+	}
+
+	mssRowLen := 1192 * 4
+	for i := 0; i < len(msdata[0]); i += mssRowLen {
+		var err error
+		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[0][i:i+mssRowLen])
+		if err != nil {
+			log.Error("write mss 1 data error:", err.Error())
+		}
+		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[1][i:i+mssRowLen])
+		if err != nil {
+			log.Error("write mss 2 data error:", err.Error())
+		}
+		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[2][i:i+mssRowLen])
+		if err != nil {
+			log.Error("write mss 3 data error:", err.Error())
+		}
+		_, err = write16bPixelLittleEndian(lw.ws[MSS_RAW].w, msdata[3][i:i+mssRowLen])
+		if err != nil {
+			log.Error("write mss 4 data error:", err.Error())
+		}
+	}
+
+	panEnviHdr.Samples = 9520
+	panEnviHdr.Bands = 1
+	lw.ws[PAN_HDR].w.Write([]byte(panEnviHdr.String()))
+
+	mssEnviHdr.Lines = mssEnviHdr.Lines / 4 // 多光谱波段分别在 4 行中传输
+	mssEnviHdr.Samples = 2384 * 4
+	mssEnviHdr.Bands = 1
+	lw.ws[MSS_HDR].w.Write([]byte(mssEnviHdr.String()))
+
+	// 帧头+辅助数据
+	if len(header)/24 < len(ebAux)/128 || len(ebAux)/128 != len(platAux)/512 {
+		fmt.Println("aux data length:", len(header)/24, len(ebAux)/128, len(platAux)/512)
+		return errors.New("aux data length is not equal")
+	}
+
+	auxRows := len(header) / 24
+	for i := 0; i < auxRows; i++ {
+		lw.ws[AUX].w.Write(header[i*24 : (i+1)*24])
+		lw.ws[AUX].w.Write(ebAux[i*128 : (i+1)*128])
+		lw.ws[AUX].w.Write(platAux[i*512 : (i+1)*512])
+	}
+
+	return nil
+}
+
+func (e *Extractor) quanlityAnalysis(data []byte) {
+	// 数据质量分析
+	fimg, _ := os.Create("demo/temp/" + e.params.DataId + "/aux.txt")
+	defer fimg.Close()
+	fimg.WriteString("字节数 		帧头流水号 		文件号 		帧头时间 	中心辅助数据前4字节(行33-36)\n")
+
+	var startAuxLine bool
+	var preSN uint32
+	for i := 0; i < len(data); {
+		afh := &AuxFrameHead{}
+		afh.Decode(data[i : i+24])
+
+		if !afh.IsValidFrmHead {
+			log.Errorf("invalid frame head of original raw data i: %v, len: %v", i, len(data))
+			return
+		}
+
+		t := time.Unix(int64(afh.TimeSec+uint32(ReferenceTime2000)), int64(afh.TimeSecFrac)*1000)
+
+		utcTime := binary.BigEndian.Uint32(data[i+32 : i+36])
+		tAux := time.Unix(int64(utcTime+uint32(ReferenceTime2000)), 0)
+
+		startAuxLine = math.Abs(float64(utcTime)-float64(afh.TimeSec)) < 30
+		if startAuxLine {
+			fimg.WriteString(fmt.Sprintf("%d 	%d 		%d 		%s 		%s\n",
+				i,
+				afh.SerialNo,
+				afh.FileNo,
+				t.String(),
+				tAux.String(),
+			))
+
+			if afh.SerialNo-preSN != 16 && preSN != 0 {
+				log.Println("serial number not continuous", afh.SerialNo, preSN)
+			}
+			preSN = afh.SerialNo
+		}
+
+		i += afh.RowLength
+	}
+}
+
+// 裁剪图像数据，只保留有效数据
+func (e *Extractor) trimImgRawData(data []byte) ([]byte, *AuxFrameHead) {
+	var start, end int
+	afh := &AuxFrameHead{}
+	// 将中心辅助数据时间合理的帧作为第一帧
+	var startAuxLine bool
+	for i := 0; i < len(data); {
+		// 解析帧
+		if i+24 > len(data) {
+			log.Info("length of original image frame head is not engough: ", len(data)-i)
+			break
+		}
+
+		if data[i] == 0xD1 && data[i+1] == 0x5B && data[i+2] == 0xD1 && data[i+3] == 0x5B {
+			log.Debug("find package head: 0xD15BD15B")
+		} else {
+			i++
+			continue
+		}
+
+		afh.Decode(data[i : i+24])
+
+		if !afh.IsValidFrmHead {
+			log.Debugf("invalid frame head of original raw data %v", i)
+			i += 1
+			continue
+		}
+
+		utcTime := binary.BigEndian.Uint32(data[i+32 : i+36])               // 相对于2000年的秒数
+		startAuxLine = math.Abs(float64(utcTime)-float64(afh.TimeSec)) < 30 // 时间差小于30秒认为是有效数据
+		if !startAuxLine {
+			i += afh.RowLength
+		} else {
+			start = i
+			nLen := (len(data) - i - 1)
+			nLen = nLen - nLen%(afh.RowLength*16)
+			end = i + nLen
+			break
+		}
+	}
+
+	return data[start:end], afh
+}
diff --git a/go.mod b/go.mod
index 62e673d..805157d 100644
--- a/go.mod
+++ b/go.mod
@@ -4,13 +4,12 @@ go 1.21
 
 toolchain go1.21.0
 
-require github.com/twpayne/go-proj/v10 v10.2.0
-
 require (
 	github.com/jonboulle/clockwork v0.4.0 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/onsi/gomega v1.33.1 // indirect
+	github.com/tealeg/xlsx v1.0.5 // indirect
 	golang.org/x/crypto v0.23.0 // indirect
 	golang.org/x/net v0.25.0 // indirect
 	golang.org/x/term v0.20.0 // indirect
diff --git a/go.sum b/go.sum
index d1e3425..f6b5e36 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,3 @@
-github.com/alecthomas/assert/v2 v2.8.0 h1:8b0foWfS2dH6MltxQMPvWdSGN1wE4K1vyab9PGW4qgE=
-github.com/alecthomas/assert/v2 v2.8.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
-github.com/alecthomas/repr v0.4.0 h1:GhI2A8MACjfegCPVq9f1FLvIBS+DrQ2KQBFZP1iFzXc=
-github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -24,8 +20,6 @@ github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
-github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
@@ -33,6 +27,9 @@ github.com/jonboulle/clockwork v0.4.0 h1:p4Cf1aMWXnXAUh8lVfewRBx1zaTSYKrKMF2g3ST
 github.com/jonboulle/clockwork v0.4.0/go.mod h1:xgRqUGwRcjKCO1vbZUEtSLrqKoPSsUpK7fnezOII0kc=
 github.com/k0kubun/pp/v3 v3.2.0 h1:h33hNTZ9nVFNP3u2Fsgz8JXiF5JINoZfFq4SvKJwNcs=
 github.com/k0kubun/pp/v3 v3.2.0/go.mod h1:ODtJQbQcIRfAD3N+theGCV1m/CBxweERz2dapdz1EwA=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/lestrrat-go/envload v0.0.0-20180220234015-a3eb8ddeffcc h1:RKf14vYWi2ttpEmkA4aQ3j4u9dStX2t4M8UM6qqNsG8=
 github.com/lestrrat-go/envload v0.0.0-20180220234015-a3eb8ddeffcc/go.mod h1:kopuH9ugFRkIXf3YoqHKyrJ9YfUFsckUU9S7B+XP+is=
 github.com/lestrrat-go/file-rotatelogs v2.4.0+incompatible h1:Y6sqxHMyB1D2YSzWkLibYKgg+SwmyFU9dF2hn6MdTj4=
@@ -75,8 +72,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/twpayne/go-proj/v10 v10.2.0 h1:EurvRTcUMqsiARMhcF0KDvBjKZeCzJqAPQ0WAbrDFdQ=
-github.com/twpayne/go-proj/v10 v10.2.0/go.mod h1:BU5zbXY6XmKenoyf+DbIg7joKlKTJM2rEssPMPJZYjY=
+github.com/tealeg/xlsx v1.0.5 h1:+f8oFmvY8Gw1iUXzPk+kz+4GpbDZPK1FhPiQRd+ypgE=
+github.com/tealeg/xlsx v1.0.5/go.mod h1:btRS8dz54TDnvKNosuAqxrM1QgN1udgk9O34bDCnORM=
 github.com/x-cray/logrus-prefixed-formatter v0.5.2 h1:00txxvfBM9muc0jiLIEAkAcIMJzfthRT6usrui8uGmg=
 github.com/x-cray/logrus-prefixed-formatter v0.5.2/go.mod h1:2duySbKsL6M18s5GU7VPsoEPHyzalCE06qoARUCeBBE=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -132,6 +129,7 @@ google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miE
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=