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Simultaneous measurement of range and velocity using a nondegenerate LiDAR system

机译:使用Nondegenerate LIDAR系统同时测量范围和速度

摘要

A light detection and ranging system is provided that includes first and second optical beams that are nondegenerate and are chirped antiphase. Taps split the first and second optical beams into first and second high-power and low-power path optical beams. An optical frequency multiplexer combines the first and second high-power path optical beams into a single spatial mode optical beam, which lensing optics launches towards a target, and collects light incident upon the target into a return path. An optical frequency demultiplexer splits the return optical beam into first and second spatial mode optical beams, and mixers mix the first spatial mode optical beam and the first low-power path optical beam, and the second spatial mode optical beam and the second low-power path optical beam, to produce optical beams having first and second beat frequencies, which optical detectors detect and from which range and velocity of the target are determinable.
机译:提供了一种光检测和测距系统,其包括第一和第二光束,其是非备合的并且是啁啾的反相。 抽头将第一和第二光束分成第一和第二高功率和低功率路径光束。 光学频率多路复用器将第一和第二高功率路径光束组合成单个空间模式光束,透镜光学朝向目标发射,并将入射在目标上的光收集到返回路径上。 光学频率解复用器将返回光束分成第一和第二空间模式光束,混合器混合第一空间光束和第一低功率路径光束,以及第二空间模式光束和第二低功率 路径光束,产生具有第一和第二拍摄频率的光束,光学检测器检测到目标的范围和速度是可确定的。

著录项

  • 公开/公告号US11231500B1

    专利类型

  • 公开/公告日2022-01-25

    原文格式PDF

  • 申请/专利权人 AEVA INC.;

    申请/专利号US201916262049

  • 发明设计人 MINA REZK;NEAL OZA;

    申请日2019-01-30

  • 分类号G01S17/26;G01S17/58;

  • 国家 US

  • 入库时间 2022-08-24 23:30:57

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