aux

cmd/parse.go

@@ -24,6 +24,7 @@ var parseCmd = &cobra.Command{
 		// p.ParseAuxPlatformWithHead("demo/ref/辅助数据.dat")
 		fmt.Println("Reference Time: 2000-01-01 12:00:00 UTC, seconds:", extract.Time2000UTCSec())
 		p.ParseAuxPlatform("demo/output/SJY01_051622_S96_PLAT.AUX")
+		p.ParseAuxEBox("demo/output/SJY01_051622_S96_EB.AUX")
 	},
 }
 

extract/aux.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"math"
 	"os"
-	"path/filepath"
 	"strings"
 	"time"
 
@@ -116,9 +115,24 @@ func (e *Extractor) SeprateAuxAndImgData(dataFile string, segmentIndex int) erro
 
 	log.Info("seprate aux and img data from", dataFile)
 
-	name := filepath.Base(dataFile)
+	dataLen := len(data)
-	name = strings.TrimRight(name, filepath.Ext(name))
+	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()
@@ -126,13 +140,6 @@ func (e *Extractor) SeprateAuxAndImgData(dataFile string, segmentIndex int) erro
 	var panEnviHdr, mssEnviHdr EnviHdr
 
 	var afh AuxFrameHead
-	dataLen := len(data)
-	log.Info("length of original data: ", dataLen)
-	data = e.trimImgRawData(data)
-	dataLen = len(data)
-	log.Info("length of trimmed data: ", dataLen)
-
-	e.quanlityAnalysis(data)
 
 	msdata := make([][]byte, 4)
 
@@ -281,9 +288,9 @@ func (e *Extractor) quanlityAnalysis(data []byte) {
 }
 
 // 裁剪图像数据，只保留有效数据
-func (e *Extractor) trimImgRawData(data []byte) []byte {
+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); {
@@ -300,7 +307,6 @@ func (e *Extractor) trimImgRawData(data []byte) []byte {
 			continue
 		}
 
-		afh := &AuxFrameHead{}
 		afh.Decode(data[i : i+24])
 
 		if !afh.IsValidFrmHead {
@@ -322,5 +328,5 @@ func (e *Extractor) trimImgRawData(data []byte) []byte {
 		}
 	}
 
-	return data[start:end]
+	return data[start:end], afh
 }

extract/aux_ebox.go

@@ -1,6 +1,12 @@
 package extract
 
-import "fmt"
+import (
+	"fmt"
+	"os"
+
+	"github.com/k0kubun/pp/v3"
+	"github.com/sirupsen/logrus"
+)
 
 // 卫星时间起点 北京时间 2000-01-01 20:00:00
 var (
@@ -14,18 +20,59 @@ type AuxFocalBox struct {
 	WorkMode            byte    // 工作模式 0B正常；1B故障
 	IntegralDirection   byte    // 积分方向 1B正向；0B反向
 	PGAGain             byte    // PGA增益
+	PIntegrationLevel   uint8   // [5]P波积分级数
+	B1IntegrationLevel  uint8   // [6.(7~6)]B1积分级数
+	B2IntegrationLevel  uint8   // [6.(5~4)]B2积分级数
+	B3IntegrationLevel  uint8   // [6.(3~2)]B3积分级数
+	B4IntegrationLevel  uint8   // [6.(1~0)]B4积分级数
+	SecPluseState       byte    // [7.(7)]秒脉冲状态 0x1 成功；0x0 失败
+	DarkFieldBias       uint16  // [7.(5~0)-8] 暗场偏置 1DN/bit，十六进制无符号整型数
+	PWinAddr            uint16  // [9-10]全色开窗地址
+	B1WinAddr           uint16  // [11-12]B1开窗地址
+	B2WinAddr           uint16  // [13-14]B2开窗地址
+	B3WinAddr           uint16  // [15-16]B3开窗地址
+	B4WinAddr           uint16  // [17-18]B4开窗地址
+	CCDWorkMode         byte    // [38]工作模式 00H=TDI推扫;11H=框幅;
+	RawDiskAvailableCap uint16  // [39-40]原始磁盘可用存储容量 量纲：2MBytes/bit
+	ZipDiskAvailableCap uint16  // [41-42]压缩盘可用存储容量
+	CommandCount        uint8   // [53]指令计数器
+	LastCommandCode     uint8   // [54]最后指令代码
 }
 
 func (ab *AuxFocalBox) Decode(data []byte) error {
+	if len(data) < 128 {
+		return fmt.Errorf("eletric box aux data length error")
+	}
 	byte0 := data[0] & 0b00111111
 	ab.TransferTime = float32(uint32(byte0)<<16|uint32(data[1])<<8|uint32(data[2])) * 0.5
 	ab.TrainingDone = data[3] & 0b10000000
 	ab.WorkMode = data[3] & 0b01000000
 	ab.IntegralDirection = data[3] & 0b00100000
 	ab.PGAGain = data[3] & 0b00011111
+	ab.PIntegrationLevel = data[4]
+	ab.B1IntegrationLevel = data[5] >> 6 & 0x03
+	ab.B2IntegrationLevel = data[5] >> 4 & 0x03
+	ab.B3IntegrationLevel = data[5] >> 2 & 0x03
+	ab.B4IntegrationLevel = data[5] & 0x03
+	ab.SecPluseState = data[6] >> 7 & 0x01
+	ab.DarkFieldBias = uint16(data[6]&0x3f)<<8 | uint16(data[7])
+	ab.PWinAddr = uint16(data[8])<<8 | uint16(data[9])
+	ab.B1WinAddr = uint16(data[10])<<8 | uint16(data[11])
+	ab.B2WinAddr = uint16(data[12])<<8 | uint16(data[13])
+	ab.B3WinAddr = uint16(data[14])<<8 | uint16(data[15])
+	ab.B4WinAddr = uint16(data[16])<<8 | uint16(data[17])
+	ab.CCDWorkMode = data[37]
+	ab.RawDiskAvailableCap = (uint16(data[38])<<8 | uint16(data[39])) * 2
+	ab.ZipDiskAvailableCap = (uint16(data[40])<<8 | uint16(data[41])) * 2
+	ab.CommandCount = data[52]
+	ab.LastCommandCode = data[53]
 	return nil
 }
 
+func (ab AuxFocalBox) Print() {
+	pp.Println(ab)
+}
+
 func (ab AuxFocalBox) String() string {
 	return fmt.Sprintf(
 		`执行转移时间：%f us\n
@@ -92,3 +139,24 @@ func (ab AuxFocalBox) PGAGainValue() string {
 		return "unknown"
 	}
 }
+
+func (e *Extractor) ParseAuxEBox(auxfile string) ([]*AuxFocalBox, error) {
+	data, err := os.ReadFile(auxfile)
+	if err != nil {
+		logrus.Println("read aux data from", auxfile, "error:", err.Error())
+		return nil, err
+	}
+
+	var afs []*AuxFocalBox
+	for i := 0; i < len(data); i += 128 {
+		var ab AuxFocalBox
+		if err := ab.Decode(data[i : i+128]); err != nil {
+			return nil, err
+		}
+		afs = append(afs, &ab)
+
+		ab.Print()
+		break
+	}
+	return afs, nil
+}

extract/aux_platform.go

@@ -322,9 +322,9 @@ func (ap *AuxPlatform) Parse(data []byte) error {
 	ap.MemsGyroXAV = float64(bigEndianToInt32(data[479:483])) * 0.000001
 	ap.MemsGyroYAV = float64(bigEndianToInt32(data[483:487])) * 0.000001
 	ap.MemsGyroZAV = float64(bigEndianToInt32(data[487:491])) * 0.000001
-	ap.MagnetictrengthX = float64(bigEndianToInt32(data[491:495])) * 19200
+	ap.MagnetictrengthX = float64(bigEndianToInt32(data[491:495])) / 19200
-	ap.MagnetictrengthY = float64(bigEndianToInt32(data[495:499])) * 19200
+	ap.MagnetictrengthY = float64(bigEndianToInt32(data[495:499])) / 19200
-	ap.MagnetictrengthZ = float64(bigEndianToInt32(data[499:503])) * 19200
+	ap.MagnetictrengthZ = float64(bigEndianToInt32(data[499:503])) / 19200
 	ap.ASSTimeInt = binary.BigEndian.Uint32(data[503:507])
 	ap.ASSTimeDec = uint32(data[507])<<16 | uint32(data[508])<<8 | uint32(data[509])
 	ap.CheckSum = data[511]