全波形激光雷达的波形优化分解算法
发布时间：2019-01-24 13:44
【摘要】：随着数据存储能力和处理速度的提高,三维激光扫描系统逐渐具备全波形采集和分析技术。为了从全波形数据中获得脉冲时间、幅度、脉宽以及多回波分布等综合信息,波形分解成为了全波形激光雷达数据处理的关键技术之一。针对LM算法在一定程度上依赖初值,而传统激光雷达数据处理容易遗漏部分重叠的返回波,本文提出了一种改进回波分量初值设定的算法来获取回波脉冲的位置、宽度和强度。针对一套自主研发的全波形记录激光雷达演示系统进行了波形分解试验,定性和定量分析结果验证了该方法的有效性、可靠性和准确性。
[Abstract]:With the improvement of data storage capacity and processing speed, 3D laser scanning system gradually has full waveform acquisition and analysis technology. In order to obtain pulse time, amplitude, pulse width and multi-echo distribution from full waveform data, waveform decomposition has become one of the key technologies of full waveform lidar data processing. In view of the fact that the LM algorithm depends on the initial value to some extent, and the traditional laser radar data processing is easy to omit some overlapping return waves, this paper proposes an improved algorithm to set the initial value of the echo component to obtain the position, width and intensity of the echo pulse. The waveform decomposition test is carried out for a fully waveform recording lidar demonstration system developed by ourselves. The results of qualitative and quantitative analysis verify the validity, reliability and accuracy of this method.
【作者单位】： 武汉大学测绘遥感信息工程国家重点实验室;中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室;
【基金】：国家自然科学基金(41571370;41505027;41601360)~~
【分类号】：P237
，
本文编号：2414531
[Abstract]:With the improvement of data storage capacity and processing speed, 3D laser scanning system gradually has full waveform acquisition and analysis technology. In order to obtain pulse time, amplitude, pulse width and multi-echo distribution from full waveform data, waveform decomposition has become one of the key technologies of full waveform lidar data processing. In view of the fact that the LM algorithm depends on the initial value to some extent, and the traditional laser radar data processing is easy to omit some overlapping return waves, this paper proposes an improved algorithm to set the initial value of the echo component to obtain the position, width and intensity of the echo pulse. The waveform decomposition test is carried out for a fully waveform recording lidar demonstration system developed by ourselves. The results of qualitative and quantitative analysis verify the validity, reliability and accuracy of this method.
【作者单位】： 武汉大学测绘遥感信息工程国家重点实验室;中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室;
【基金】：国家自然科学基金(41571370;41505027;41601360)~~
【分类号】：P237
，
本文编号：2414531
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