发明名称 |
Coherent laser radar system and target measurement method |
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.
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申请公布号 |
US2001009458(A1) |
申请公布日期 |
2001.07.26 |
申请号 |
US20010758421 |
申请日期 |
2001.01.12 |
申请人 |
ASAKA KIMIO;HIRANO YOSHIHITO;YANAGISAWA TAKAYUKI;WADAKA SHUSOU;OOGA YASUISA;SUGIMOTO ETSUO;SUGIMOTO KYOKO |
发明人 |
ASAKA KIMIO;HIRANO YOSHIHITO;YANAGISAWA TAKAYUKI;WADAKA SHUSOU;OOGA YASUISA;SUGIMOTO ETSUO;SUGIMOTO KYOKO |
分类号 |
H01S3/00;G01S7/48;G01S7/481;G01S7/486;G01S17/10;G01S17/42;G02F1/33;H01S3/10;(IPC1-7):G01P3/36;G01C3/08 |
主分类号 |
H01S3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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