文档介绍：
新型双通道 Mach-Zehnder 干涉仪多普勒测
风激光雷达鉴频系统仿真及分析#
汪丽,谭林秋,邢美丽,狄慧鸽,王玉峰,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(M-Z)干涉仪作为鉴频器件可应用于多普勒测风激光雷达系统的双
边缘及条纹成像风场探测。相比于 Fabry-Perot(F-P)干涉仪,M-Z 干涉仪具有光通量大、可
以进行视场展宽等优点。本文提出一种新型结构双通道 M-Z 干涉仪作为多普勒测风激光雷
达鉴频器件,利用光学设计软件对其结构进行了设计,通过设定实验参数进行了模拟仿真测
试,最终反演出了风速值,结果表明此结构可以作为鉴频器件成功应用于多普勒测风激光雷
达系统中。
关键词: 激光雷达;多普勒测风;双通道 M-Z 干涉仪;仿真分析
中图分类号:
System simulation and analysis of new type dual-channel
Mach-Zehnder Frequency discriminator for Doppler lidar
wind measurement
WANG Li, TAN Linqiu, XING Meili, DI Huige, WANG Yufeng, HUA Dengxin
(School of mechanical and precision instrument engineering ,Xi'an University of technology,
Xi'an 710048)
Abstract: Mach-Zehnder (M-Z) interferometer as frequency discriminator is used to double edge
technique and fringe imaging technique of Doppler lidar for wind measurement. Contrast to
Fabry-Perot (F-P) interferometer, M-Z interferometer has the advantages of big luminous flux and
wide field. A new type dual-channel M-Z interferometer is proposed as frequency discriminator in
this paper. The system is optimized and designed with optical design software. The wind velocity
is retrieved from simulation result through setting experiment parameter. The result indicates that
the new structure M-Z interferomer can be applied in Doppler wind lidar.
Keywords: Lidar; Doppler w