168 lines
4.4 KiB
Go
168 lines
4.4 KiB
Go
package extract
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import (
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"fmt"
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"os"
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"github.com/k0kubun/pp/v3"
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"github.com/sirupsen/logrus"
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"github.com/tealeg/xlsx"
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)
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// 卫星时间起点 北京时间 2000-01-01 20:00:00
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var (
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ReferenceTime2000 = 946728000
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)
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// 焦面电箱辅助数据 128 字节 (每 16 行原始图像数据为一组)
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type AuxFocalBox struct {
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TransferTime float32 // 执行转移时间 0.5us/bit
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TrainingDone byte // 1B成功；0B失败
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WorkMode byte // 工作模式 0B正常；1B故障
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IntegralDirection byte // 积分方向 1B正向；0B反向
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PGAGain byte // PGA增益
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PIntegrationLevel uint8 // [5]P波积分级数
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B1IntegrationLevel uint8 // [6.(7~6)]B1积分级数
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B2IntegrationLevel uint8 // [6.(5~4)]B2积分级数
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B3IntegrationLevel uint8 // [6.(3~2)]B3积分级数
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B4IntegrationLevel uint8 // [6.(1~0)]B4积分级数
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SecPluseState byte // [7.(7)]秒脉冲状态 0x1 成功；0x0 失败
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DarkFieldBias uint16 // [7.(5~0)-8] 暗场偏置 1DN/bit，十六进制无符号整型数
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PWinAddr uint16 // [9-10]全色开窗地址
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B1WinAddr uint16 // [11-12]B1开窗地址
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B2WinAddr uint16 // [13-14]B2开窗地址
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B3WinAddr uint16 // [15-16]B3开窗地址
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B4WinAddr uint16 // [17-18]B4开窗地址
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CCDWorkMode byte // [38]工作模式 00H=TDI推扫;11H=框幅;
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RawDiskAvailableCap uint16 // [39-40]原始磁盘可用存储容量 量纲：2MBytes/bit
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ZipDiskAvailableCap uint16 // [41-42]压缩盘可用存储容量
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CommandCount uint8 // [53]指令计数器
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LastCommandCode uint8 // [54]最后指令代码
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}
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func (ab *AuxFocalBox) Decode(data []byte) error {
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if len(data) < 128 {
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return fmt.Errorf("eletric box aux data length error")
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}
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byte0 := data[0] & 0b00111111
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ab.TransferTime = float32(uint32(byte0)<<16|uint32(data[1])<<8|uint32(data[2])) * 0.5
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ab.TrainingDone = data[3] & 0b10000000
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ab.WorkMode = data[3] & 0b01000000
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ab.IntegralDirection = data[3] & 0b00100000
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ab.PGAGain = data[3] & 0b00011111
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ab.PIntegrationLevel = data[4]
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ab.B1IntegrationLevel = data[5] >> 6 & 0x03
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ab.B2IntegrationLevel = data[5] >> 4 & 0x03
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ab.B3IntegrationLevel = data[5] >> 2 & 0x03
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ab.B4IntegrationLevel = data[5] & 0x03
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ab.SecPluseState = data[6] >> 7 & 0x01
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ab.DarkFieldBias = uint16(data[6]&0x3f)<<8 | uint16(data[7])
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ab.PWinAddr = uint16(data[8])<<8 | uint16(data[9])
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ab.B1WinAddr = uint16(data[10])<<8 | uint16(data[11])
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ab.B2WinAddr = uint16(data[12])<<8 | uint16(data[13])
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ab.B3WinAddr = uint16(data[14])<<8 | uint16(data[15])
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ab.B4WinAddr = uint16(data[16])<<8 | uint16(data[17])
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ab.CCDWorkMode = data[37]
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ab.RawDiskAvailableCap = (uint16(data[38])<<8 | uint16(data[39])) * 2
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ab.ZipDiskAvailableCap = (uint16(data[40])<<8 | uint16(data[41])) * 2
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ab.CommandCount = data[52]
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ab.LastCommandCode = data[53]
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return nil
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}
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func (ab AuxFocalBox) Print() {
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pp.Println(ab)
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}
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func (ab AuxFocalBox) String() string {
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return fmt.Sprintf(
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`执行转移时间：%f us\n
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TrainingDone：%x\n
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工作模式：%x\n
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积分方向：%x\n
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PGA增益：%s
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`,
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ab.TransferTime,
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ab.TrainingDone,
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ab.WorkMode,
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ab.IntegralDirection,
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ab.PGAGainValue(),
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)
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}
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func (ab AuxFocalBox) PGAGainValue() string {
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switch ab.PGAGain {
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case 0b0000:
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return "0.75x"
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case 0b0001:
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return "1.25x"
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case 0b0010:
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return "1.75x"
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case 0b0011:
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return "2.25x"
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case 0b0100:
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return "2.75x"
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case 0b0101:
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return "3.25x"
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case 0b0110:
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return "3.75x"
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case 0b0111:
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return "4.25x"
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case 0b1000:
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return "4.75x"
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case 0b1001:
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return "5.25x"
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case 0b1010:
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return "5.75x"
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case 0b10000:
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return "1x"
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case 0b10001:
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return "1.5x"
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case 0b10010:
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return "2x"
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case 0b10011:
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return "2.5x"
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case 0b10100:
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return "3x"
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case 0b10101:
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return "3.5x"
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case 0b10110:
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return "4x"
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case 0b10111:
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return "4.5x"
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case 0b11000:
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return "5x"
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case 0b11001:
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return "5.5x"
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case 0b11010:
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return "6x"
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default:
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return "unknown"
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}
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}
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func (ab AuxFocalBox) SaveXlsx(row *xlsx.Row) error {
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return nil
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}
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func (e *Extractor) ParseAuxEBox(auxfile string) ([]*AuxFocalBox, error) {
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data, err := os.ReadFile(auxfile)
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if err != nil {
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logrus.Println("read aux data from", auxfile, "error:", err.Error())
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return nil, err
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}
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var afs []*AuxFocalBox
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for i := 0; i < len(data); i += 128 {
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var ab AuxFocalBox
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if err := ab.Decode(data[i : i+128]); err != nil {
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return nil, err
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}
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afs = append(afs, &ab)
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ab.Print()
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break
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}
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return afs, nil
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}
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