文档介绍：
基于 Mach-zehnder 干涉仪激光雷达风场探
测系统误差容限分析#
邢美丽,汪丽,谭林秋,华灯鑫**
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(西安理工大学机械与精密仪器工程学院,西安 710048)
摘要:Mach-Zehnder 干涉仪作为多普勒激光雷达风场探测系统的鉴频器具有透过率高、探
测谱的范围宽、能进行视场展宽而获得大光通量的优点。本文采用能量探测的方式对
Mach-Zehnder 干涉仪鉴频系统进行了优化设计,重点分析了鉴频系统的参数误差(基准光
程差误差、分光棱镜的分光比)对探测结果的影响,反演出风速误差,做出了其理论分析曲
线,给出了风速误差在 1m/s 以内时系统参数误差容限。
关键词:激光雷达;Mach-Zehnder 干涉仪;大气风场;误差容限
中图分类号:
The system error tolerance analysis of wind detection system
based on Mach-Zehnder interferometer
XING Meili, WANG Li, TAN Linqiu, HUA Dengxin
(School of mechanical and precision instrument engineering,Xi'an University of technology,Xi'an
710048)
Abstract: Mach-Zehnder interferometer as a frequency discriminator of a doppler lidar has a high
range of detection spectrum, as broadening the field of view can obtained large
this paper, the frequency discriminator Mach-Zehnder interferometer system has been optimized
for energy detection, analysised the error of the system parameters of the frequency discriminator
(reference optical path difference error(△ OPD), the ratio of Beam-splitter peism) , the wind speed
error has been inversed and its theoretical analysis curve has been made, given the system parameters
error tolerance when wind speed error within 1 m/s.
Key words: Mach-Zehnder interferometer; laser lidar; wind field; error tolerance
0 引言
全球风场的主动观测被世界气象组织在十