回波信噪比对激光雷达测绘精度的影响

对不同信噪比条件下条纹原理的阵列探测器获得的激光雷达回波实验信号的测绘误差进行了分析并获得了激光回波信噪比对激光雷达测绘精度影响的实验规律，并对该种探测系统的背景噪声特性进行了研究，在此基础上建立了条纹原理的阵列探测体制激光成像雷达测绘仿真系统。通过该仿真系统对实验过程进行了模拟，获得了与实验结果相同的激光回波信噪比对激光雷达测绘精度影响变化规律曲线。利用该仿真系统可以根据测绘精度的要求对条纹原理的阵列探测体制激光成像雷达进行设计。

Abstract

The mapping error of LIDAR echo signal which received by detector array based on streak tube from different signal noise ratios (SNR) is analyzed, and the experimental relation how echo SNR impacts mapping accuracy of LIDAR is reached. The background noise feature of this detection system is researched, thus building imaging LIDAR mapping and simulation system applying detector array based on streak tube. Having simulated the process of experiment using this simulation system, the function relation between LIDAR mapping accuracy and echo SNR which agrees well with experimental results is reached. According to mapping accuracy, imaging LIDAR applying detector arrays based on streak tube can be designed using this simulation system.

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董志伟, 郑立威, 范国祥, 樊荣伟, 叶光超, 陈德应, 魏源. 回波信噪比对激光雷达测绘精度的影响[J]. 光学学报, 2014, 34(s2): s228002. Dong Zhiwei, Zheng Liwei, Fan Guoxiang, Fan Rongwei, Ye Guangchao, Chen Deying, Wei Yuan. Impaction of Signal Noise Ratio for Mapping Accuracy of LIDAR[J]. Acta Optica Sinica, 2014, 34(s2): s228002.

回波信噪比对激光雷达测绘精度的影响

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