光学学报, 2016, 36 (9): 0928001, 网络出版: 2016-08-18
条纹管激光雷达回波噪声特性研究
Noise Features in Streak Tube Lidar Echo Signal
遥感 波形采样 条纹原理 机载激光雷达 噪声特性 remote sensing waveform sampling streak principle airborne lidar noise features
摘要
波形采样机载激光雷达具备多层目标探测及高精度三维测绘能力,是今后激光雷达技术的发展趋势。基于条纹原理的阵列探测体制激光成像雷达由于具备全波形回波数据采样能力及高集成度等特点,在激光测绘及探测中具有广阔的应用前景。介绍了一种基于条纹原理的全波形采样面阵探测体制的新型激光雷达系统,提取了新型激光雷达机载飞行实验回波信号中的噪声,获得了新型激光雷达回波噪声统计规律,通过与目标总体回波信号统计特性的对比,提出了新型波形采样激光雷达回波信号去噪方法。
Abstract
Waveform sampling lidar is the technical tendency in lidar technology in virtue of its high precision of three-dimensional geodesy and multi-layer target detection ability. Especially, array detection imaging lidar systems applying the streak tube principle have promising application prospect because of their full waveform sampling and high degree of integration. A new lidar system which is based on full waveform echo sampling and array detection of the streak tube is established to extract noise in echo signal of airborne flight experiments and summarize statistical properties of echo noise. A new denoising method for echo signal in waveform sampling lidar is proposed by comparing the different statistical properties between noise and echo signals.
董志伟, 张瑞环, 张伟斌, 陈默然, 李旭东, 樊荣伟, 闫仁鹏, 陈德应, 于欣, 王正国. 条纹管激光雷达回波噪声特性研究[J]. 光学学报, 2016, 36(9): 0928001. Dong Zhiwei, Zhang Ruihuan, Zhang Weibin, Chen Moran, Li Xudong, Fan Rongwei, Yan Renpeng, Chen Deying, Yu Xin, Wang Zhengguo. Noise Features in Streak Tube Lidar Echo Signal[J]. Acta Optica Sinica, 2016, 36(9): 0928001.