Infrared and Laser Engineering, Volume. 50, Issue 9, 20200402(2021)

Numerical simulation and data processing of ground target in SLR system

Shuzhuo Miao1,2, Ning An1、*, Jian Gao1, Guanyu Wen1, Qingli Song1, Xue Dong1, Lei Ma1, and Cunbo Fan1
Author Affiliations
  • 1Changchun Observatory/National Astronomical Observatories, Chinese Academy of Sciences, Changchun 130117, China
  • 2University of Chinese Academy of Sciences, Beijing 100049, China
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    Figures & Tables(13)
    Flow chart of ground target numerical simulation of SLR
    Simulated ground target measurement data in daytime
    Actual ground target measurement data in daytime (UTC:8∶05;TEMP:25 ℃,sunny)
    Flow chart of ANCM algorithm
    Statistics of pure noise data measured at Changchun station (UTC:8∶10;TEMP:19 ℃,sunny)
    Data and echo waveform comparison before and after pre-processing. (a) Data before processing; (b) Data after processing; (c) Echo waveform before pre-processing; (d) Echo waveform after pre-processing
    [in Chinese]
    Standard deviation change of original data points (Distance of the ground target is set to 3 m)
    Threshold change of noise at different distances
    Statistical results between standard point algorithm and ANCM. (a) Change of precision; (b) Change of data points; (c) Change of processing time
    • Table 1. Statistical results of simulated data points and actual data points

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      Table 1. Statistical results of simulated data points and actual data points

      Simulated data pointsActual data points
      1Total1000010000
      Average/ns209.7017209.7344
      Standard deviation/ns0.05110.0557
      Pearson correlation coefficient0.9510
      2Total1000010000
      Average/ns209.7214209.7275
      Standard deviation/ns0.04820.0510
      Pearson correlation coefficient0.9247
      3Total1000010000
      Average/ns209.7531209.7391
      Standard deviation/ns0.05080.0498
      Pearson correlation coefficient0.9452
    • Table 2. Precision of valid points with different iteration times

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      Table 2. Precision of valid points with different iteration times

      TimesTotalValid pointsAverage/nsStandard deviation/ns
      15000848169.97450.0177
      25000387169.97410.0153
      35000329169.97430.0126
      45000328169.97420.0125
      55000328169.97420.0125
      65000328169.97420.0125
    • Table 3. Processing results of traditional ground target data processing algorithm and ANCM algorithm (UTC: 8∶55; TEMP: 22 ℃, sunny)

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      Table 3. Processing results of traditional ground target data processing algorithm and ANCM algorithm (UTC: 8∶55; TEMP: 22 ℃, sunny)

      Traditional algorithmANCM algorithm
      Valid points200267
      Standard deviation/ns0.03730.0153
      Processing time/s2.841.45
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    Shuzhuo Miao, Ning An, Jian Gao, Guanyu Wen, Qingli Song, Xue Dong, Lei Ma, Cunbo Fan. Numerical simulation and data processing of ground target in SLR system[J]. Infrared and Laser Engineering, 2021, 50(9): 20200402

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    Paper Information

    Category: Photoelectric measurement

    Received: Dec. 8, 2020

    Accepted: --

    Published Online: Oct. 28, 2021

    The Author Email: An Ning (ann@cho.ac.cn)

    DOI:10.3788/IRLA20200402

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