激光雷达系统的数值仿真

为了对成像激光雷达系统进行性能分析,建立了成像激光雷达系统的数值仿真模型.模型以激光雷达原理为基础,考虑了激光雷达距离方程、噪声模型、接收信噪比、成像模型等模块,寻找不同环境与各模型参数的对应关系,以此预测环境对激光雷达系统性能的影响.根据模型,编制计算机仿真软件进行雷达系统模拟,结果表明,数值仿真有助于实验系统的方案设计和性能改进.

Numerical Simulation for Lidar System

In order to analyze the performance of the imaging lidar system, the numerical simulation model for imaging laser radar is presented. This model is based on the laser radar principles, and it concerns lidar range equation, noise model, SNR (Signal-to-Noise Ratio), imaging model,etc. It aims to find out the correlation between the various outside conditions and the model parameters, and thus to predicate how the outside conditions affect the performance of the Lidar system. With this model, a simulation software is built to operate the simulation of lidar system. Results show that numerical simulation can help scheme designing and performance improving of the lidar system.