激光测高仪回波建模与蒙特卡罗仿真实现

Modeling and Simulation of Laser Altimeter Echo Signal Based on Monte Carlo Algorithm

对激光测高仪回波进行分析研究,可提高系统测距精度,获取目标信息。但单纯的实验方法条件苛刻代价高昂,且难以定量化评价各因素对回波的影响。而对测高仪回波信号的理论求解又极其复杂。通过仿真技术研究激光测高仪回波是一条可行之路。对测高仪回波信号进行了建模分析,应用Monte Carlo算法实现了激光测高仪回波波形的仿真,对典型情况的仿真证明了该算法和系统的有效性。基于Labview7.1软件平台的仿真系统为激光测高仪回波处理提供了研究平台和一种灵活、可行的方法,并可应用到测高仪设计、实验中去。

The analysis of laser altimeter echo signal is useful for improving systemg precision and acquiring target information. It is difficult and expensive to conduct practical experiment. The effect of different factors on echo signal is also difficult to he evaluated quantitatively only by experimental data. The theoretical interpretation of laser altimeter echo signal is too complicated. Thus using simulation technique to do research is applicable. After modeling the laser altimeter echo signal, simulation is realized by the application of Monte Carlo algorithm, and its validity is approved by three typical simulation results. The simulation system based on Lahview7.1 software sets up a platform and offers a new flexible method for researching laser altimeter echo signal processing. It can be applied to the design and experiment of laser altimeter.