Frequency-modulated multifunction lidar for anemometry, range finding, and velocimetry-1. Theory and signal processing
Frequency-modulated multifunction lidar for anemometry, range finding, and velocimetry-1. Theory and signal processing
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DOI：
10.1364/ao.56.009663
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发表时间：
2017-12-10
期刊：
影响因子：
1.9
通讯作者：
Midavaine, T.
中科院分区：
文献类型：
--
作者：
Feneyrou, P.;Leviandier, L.;Midavaine, T.
原始波形和优化的信号处理提出了调频连续波激光雷达测距，测速，激光测速。对于测距，这种信号处理的目的是扩大激光雷达的范围和减少模糊。此外，考虑到风致双折射，分析了中等大气湍流对无限大和有限大目标激光雷达效率的影响。对于激光风速计，其目的是在比直升机周围的旋翼诱导湍流体积更远的最短距离处测量空气速度，并避免来自直升机附近的云或硬目标的寄生回波。(C)2017美国光学学会
Original waveforms and optimized signal processing are proposed for frequency-modulated continuous-wave lidar for range finding, velocimetry, and laser anemometry. For range finding, the aim of this signal processing is to extend lidar range and reduce ambiguities. Moreover, the effect of moderate atmospheric turbulence on lidar efficiency is analyzed for infinite and finite targets, taking into account wind-induced bistatism. For laser anemometry, the aim is to measure air speed at the shortest distance farther than the rotor-induced turbulent volume around the helicopter and to avoid parasitic echoes coming from clouds or hard targets in the vicinity of a helicopter. (C) 2017 Optical Society of America