Volume 46 Issue 10
Nov.  2017
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Li Shaohui, Zhou Hui, Ni Guoqiang. Analysis on corrected value of laser ranging based on multiple mode waveform of satellite laser altimeter[J]. Infrared and Laser Engineering, 2017, 46(10): 1006001-1006001(8). doi: 10.3788/IRLA201759.1006001
Citation: Li Shaohui, Zhou Hui, Ni Guoqiang. Analysis on corrected value of laser ranging based on multiple mode waveform of satellite laser altimeter[J]. Infrared and Laser Engineering, 2017, 46(10): 1006001-1006001(8). doi: 10.3788/IRLA201759.1006001

Analysis on corrected value of laser ranging based on multiple mode waveform of satellite laser altimeter

doi: 10.3788/IRLA201759.1006001
  • Received Date: 2017-02-10
  • Rev Recd Date: 2017-03-20
  • Publish Date: 2017-10-25
  • Satellite Laser Altimeter multiple mode waveforms are composed of sub-pulses generated from several targets. According to the spatial distribution characteristics of multiple mode targets,the geometric modeling of the sub-target was realized by using the parameters such as the slope angle, the area, the center position and the height. Combined with the basic definition of the target response function, the expression of the sub-target response function was built up by using the line integral method. Meanwhile, the mathematical models of laser ranging and its corrected value for sub-target were derived on the basis of the first order moment theory. Using some parameters of Geoscience Laser Altimeter System(GLAS) as input, the influence of slope angle, area and the center position on the shape of received pulse waveforms and the corrected value of laser ranging was simulated by numerical simulation method. The results show that the corrected value of laser ranging becomes larger with the increase of the slope angle, the area and the center position of sub-target. As for the sub-target with low relief, moderate relief and high relief, the corrected value of laser ranging can be reached at 1.33 m, 4.98 m and 12.07 m, respectively, which exerts a tremendous influence. In term of the regularities distribution of the corrected value of laser ranging, its theoretical expression is described with linear functions by using slope angle, area and the center deviation distance as variables. The conclusion has important guiding effect for the improvement of laser ranging accuracy for multiple mode targets.
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    [2] Abshire J B, Sun X, Riris H, et al. Geoscience laser altimeter system (GLAS) on the ICESat mission:on-orbit measurement performance[J]. Geophysical Research Letters, 2005, 32(21):1-4.
    [3] Brenner A C, Zwally H J, Bentley C R, et al. The algorithm theoretical basis document for the derivation of range and range distributions from laser pulse waveform analysis for surface elevations, roughness, slope, and vegetation heights, NASA Technical Report NASA/TM-2012-208641/7, GSFC.TM.7299[R]. Greenbelt, Maryland NASA Goddard Space Flight Center; 2012:31-32.
    [4] Zwally H J, Schutz B, Abdalati W, et al. ICESat's laser measurements of polar ice, atmosphere, ocean, and land[J].Journal of Geodynamics, 2002, 34(3):405-445.
    [5] Huang C, Zhang S, Chen X. A topographic parameter inversion method based on laser altimetry[J]. Science China Technological Sciences, 2012, 55(5):1273-1280.
    [6] Li X, Xu L, Tian X, et al. Terrain slope estimation within footprint from ICESat/GLAS waveform:model and method[J]. Journal of Applied Remote Sensing, 2012, 6(1):063534-1-063534-24.
    [7] Poole W D B. Deriving planetary surface characteristics from orbiting laser altimeter pulse-widths on:mars, the moon, and earth[D]. London:University College London, 2015:52.
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    [10] Wang C, Tang F, Li L, et al. Wavelet analysis for ICESat/GLAS waveform decomposition and its application in average tree height estimation[J]. IEEE Geoscience and Remote Sensing Letters, 2013, 10(1):115-119.
    [11] Zhou Hui, Li Song, Wang Liangxun, et al. Influence of single atmospheric scattering effect on received pulse waveform of satellite laser altimeter[J]. Infrared and Laser Engineering, 2016, 45(1):0106002. (in Chinese)周辉, 李松, 王良训, 等. 单次大气散射效应对星载激光测高仪接收脉冲回波的影响[J]. 红外与激光工程, 2016, 45(1):0106002.
    [12] Gardner C S. Ranging performance of satellite laser altimeters[J]. IEEE Transaction on Geoscience and Remote Sensing, 1992, 30(5):1061-1072.
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Analysis on corrected value of laser ranging based on multiple mode waveform of satellite laser altimeter

doi: 10.3788/IRLA201759.1006001
  • 1. School of Optoelectronics,Beijing Institute of Technology,Beijing 100081,China;
  • 2. Beijing Institute of Spacecraft System Engineering,Beijing 100094,China;
  • 3. Electronic Information School,Wuhan University,Wuhan 430072,China

Abstract: Satellite Laser Altimeter multiple mode waveforms are composed of sub-pulses generated from several targets. According to the spatial distribution characteristics of multiple mode targets,the geometric modeling of the sub-target was realized by using the parameters such as the slope angle, the area, the center position and the height. Combined with the basic definition of the target response function, the expression of the sub-target response function was built up by using the line integral method. Meanwhile, the mathematical models of laser ranging and its corrected value for sub-target were derived on the basis of the first order moment theory. Using some parameters of Geoscience Laser Altimeter System(GLAS) as input, the influence of slope angle, area and the center position on the shape of received pulse waveforms and the corrected value of laser ranging was simulated by numerical simulation method. The results show that the corrected value of laser ranging becomes larger with the increase of the slope angle, the area and the center position of sub-target. As for the sub-target with low relief, moderate relief and high relief, the corrected value of laser ranging can be reached at 1.33 m, 4.98 m and 12.07 m, respectively, which exerts a tremendous influence. In term of the regularities distribution of the corrected value of laser ranging, its theoretical expression is described with linear functions by using slope angle, area and the center deviation distance as variables. The conclusion has important guiding effect for the improvement of laser ranging accuracy for multiple mode targets.

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