激光与光电子学进展, 2018, 55 (12): 120005, 网络出版: 2019-08-01
时频分析在激光雷达中的应用进展 下载: 882次
Application Progress of Time-Frequency Analysis for Lidar
激光光学 激光雷达 时频分析 参数提取 目标探测 laser optics lidar time-frequency analysis parameter extraction target detection
摘要
激光雷达对于实现隐形目标或大气、海洋、陆地领域目标等方面的高分辨率多参数探测具有重要意义。相对于传统的单独时域或频域处理,时频分析在激光雷达信号分析、解译和处理等方面可以提供更多的信息。时频分析在激光雷达中的具体应用包括大气参数的特征分析与提取、信号去噪、运动目标成像与检测以及微多普勒特征分析等。在简要阐述各种时频分析原理特性基础上,着重介绍时频分析在激光雷达中的最新应用进展。
Abstract
Lidar is vital for the high-resolution and multi-parameter detection of concealed objects, objects in the ares like atmosphere, oceans, lands, and so on. Compared with the traditional time-domain or frequency-domain methods, time-frequency analysis can provide more insight into the analysis, interpretation, and processing of lidar signals. Time-frequency analysis has been widely used, including in feature analysis and extraction of atmospheric parameters, signal denoising, moving target imaging and detection, and micro-Doppler classification analysis. The methods used for the time-frequency analysis of lidar are further developed based on the basic principles and characteristics of time-frequency analysis.
刘燕平, 王冲, 夏海云. 时频分析在激光雷达中的应用进展[J]. 激光与光电子学进展, 2018, 55(12): 120005. Yanping Liu, Chong Wang, Haiyun Xia. Application Progress of Time-Frequency Analysis for Lidar[J]. Laser & Optoelectronics Progress, 2018, 55(12): 120005.