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1. 发明授权

US06469778B2 Coherent laser radar system and target measurement method 失效
标题翻译：相干激光雷达系统和目标测量方法
公开(公告)号：US06469778B2
公开(公告)日：2002-10-22
申请号：US09758421
申请日：2001-01-12
申请人： Kimio Asaka , Yoshihito Hirano , Takayuki Yanagisawa , Shusou Wadaka , Yasuisa Ooga , Etsuo Sugimoto
发明人： Kimio Asaka , Yoshihito Hirano , Takayuki Yanagisawa , Shusou Wadaka , Yasuisa Ooga , Etsuo Sugimoto
IPC分类号： G01P336
CPC分类号： G01S7/4818 , G01S7/486 , G01S17/10
摘要： A coherent laser radar system includes a pulsed laser oscillating a pulsed laser beam which is split into two parts by an optical divider. A first part of the two is transmitted as a transmitted beam via a beam splitter. A second part is supplied to a delay line via a coupling optics and others to be delayed by a predetermined time as a local beam, and is incident onto an optical coupler. The received beam from the target is incident onto the optical coupler via a scanning optics and so on. A photodetector carries out the coherent detection of the light beam coupled by the optical coupler. A signal processor computes a target velocity and the like from a signal generated by the detection and converted into a digital signal by an A/D converter. This makes it possible to solve a problem of a conventional system in that the system configuration is complicated and expensive.
摘要翻译：相干激光雷达系统包括脉冲激光振荡脉冲激光束，该激光束通过光学分配器分成两部分。两者的第一部分通过分束器作为透射光束传输。第二部分经由耦合光学器件提供给延迟线，而其它部分被延迟预定时间作为局部光束，并入射到光耦合器上。来自目标的接收光束通过扫描光学器件等入射到光耦合器上。光电检测器执行由光耦合器耦合的光束的相干检测。信号处理器从由检测产生的信号中计算出目标速度等并由A / D转换器转换成数字信号。这使得可以解决常规系统的问题，因为系统配置是复杂和昂贵的。

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