Acta Geodaetica et Cartographica Sinica ›› 2014, Vol. 43 ›› Issue (12): 1238-1244.doi: 10.13485/j.cnki.11-2089.2014.0188

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Research on LiDAR Surveying Satellite Detection Capacity for Different Terrains

LI Xin, LIAO He, ZHAO Meiling, ZHOU Wenlong, CAO Shuiyan, ZHOU Shihong   

  1. Shanghai Institute of Satellite Engineering, Shanghai 200240, China
  • Received:2014-02-08 Revised:2014-08-14 Online:2014-12-20 Published:2014-12-23

Abstract: Four basic models have been established in view of the slope terrain, the step and platform terrain, the vegetation terrain as well as the dividing terrain and research is focused on exploring the effect of irregular topography and distribution of reflectance on the spatial and temporal distribution of echo signal. Additionally, Monte-Carlo Method has been employed to simulate measuring accuracy of LiDAR Geiger mode detection under the four models. Through the numerical simulation, it is found that irregular topography mainly affects the time distribution of echo pulse and error can be eliminated under the statistics condition; the change of the distribution of echo signal is mainly caused by the variation of the landscape, so small error can be ignored. Such results prove that 3D Laser Surveying Satellite is advantageous to the detection over different landforms and physiognomy, such as architectures, hills, boundary zones and vegetative cover.

Key words: LiDAR surveying, satellite, geography and geomorphology, stepped terrain, slope terrain, reflectivity, Monte-Carlo method

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