• Infrared and Laser Engineering
  • Vol. 49, Issue 8, 20190561 (2020)
Haitao Zhang1, Rufeng Tang2, Zhulian Li1、*, and Yuqiang Li1
Author Affiliations
  • 1Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
  • 2Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
  • show less
    DOI: 10.3788/IRLA20190561 Cite this Article
    Haitao Zhang, Rufeng Tang, Zhulian Li, Yuqiang Li. Preprocessing method of laser ranging data based on array detection technology[J]. Infrared and Laser Engineering, 2020, 49(8): 20190561 Copy Citation Text show less
    Diagram of laser ranging system based on array detection
    Fig. 1. Diagram of laser ranging system based on array detection
    Multi-channel laser ranging data statistic
    Fig. 2. Multi-channel laser ranging data statistic
    Main echo matching O-C plot. (a) Each channel, (b) all channels
    Fig. 3. Main echo matching O-C plot. (a) Each channel, (b) all channels
    Segmental signal identification (3/8) and signal identification results (b)
    Fig. 4. Segmental signal identification (3/8) and signal identification results (b)
    Cyclic fitting filtering results (a) and fitting residual plot (b)
    Fig. 5. Cyclic fitting filtering results (a) and fitting residual plot (b)
    Echo photon distribution diagram of laser ranging data (a) and time offset diagram between channels (b)
    Fig. 6. Echo photon distribution diagram of laser ranging data (a) and time offset diagram between channels (b)
    Fitting residual histogram statistics and multi-peaks Gaussian fitting results. (a) Each channel, (b) channel 13
    Fig. 7. Fitting residual histogram statistics and multi-peaks Gaussian fitting results. (a) Each channel, (b) channel 13
    [in Chinese]
    Fig. 8. [in Chinese]
    Cross-correlation sequence of each channel and standard channel (channel 14) & Gaussian fitting results. (a) Cross-correlation sequence of each channel and standard channel & Gaussian fitting results, (b) cross-correlation sequence of channel 13 and its maximum value
    Fig. 8. Cross-correlation sequence of each channel and standard channel (channel 14) & Gaussian fitting results. (a) Cross-correlation sequence of each channel and standard channel & Gaussian fitting results, (b) cross-correlation sequence of channel 13 and its maximum value
    Fitting residual histogram statistics before (a) and after (b) correction(all channels)
    Fig. 9. Fitting residual histogram statistics before (a) and after (b) correction(all channels)
    [in Chinese]
    Fig. 10. [in Chinese]
    10571 data preprocessing results. (a) Original data, (b) signal identification results, (c) histogram statistics of fitting residual after correction
    Fig. 10. 10571 data preprocessing results. (a) Original data, (b) signal identification results, (c) histogram statistics of fitting residual after correction
    hy2a data preprocessing results. (a) Original data, (b) signal identification results, (c) histogram statistics of fitting residual after correction
    Fig. 11. hy2a data preprocessing results. (a) Original data, (b) signal identification results, (c) histogram statistics of fitting residual after correction
    [in Chinese]
    Fig. 11. [in Chinese]
    Code (name) DateRMS before correction/mRMS after correction/mAccuracy improvement/mRemarks
    105172019-04-151.8981.75913.91st pass
    105172019-04-152.1152.0466.92nd pass
    383552019-04-151.8831.8097.4
    041392018-12-011.5141.4912.3
    073642018-12-011.8071.7565.1
    222372018-12-011.1741.04812.6
    222852018-12-011.4881.4682.0
    hy2a2018-12-010.8610.7808.1
    Mean~7.2
    Table 1.

    Correction results of time offset between channels

    通道间的时间偏差修正结果

    Code (name) DateRMS after correction/mRMS further processing/mAccuracy improvement/cmRemarks
    105172019-04-151.7591.7174.21st pass
    105172019-04-152.0462.0390.72nd pass
    383552019-04-151.8091.7941.5
    041392018-12-011.4911.4890.2
    073642018-12-011.7561.64611.0
    222372018-12-011.0481.0301.8
    222852018-12-011.4681.4353.3
    hy2a2018-12-010.7800.7463.4
    Mean~3.2
    Table 2.

    RMS of further processing

    修正后数据处理内符合精度

    Haitao Zhang, Rufeng Tang, Zhulian Li, Yuqiang Li. Preprocessing method of laser ranging data based on array detection technology[J]. Infrared and Laser Engineering, 2020, 49(8): 20190561
    Download Citation