发明名称 |
Pulse radar apparatus and control method thereof |
摘要 |
The invention provides a pulse radar apparatus, and a control method thereof, that permits to readily downsize and to lower its cost and allows information on an object to be detected in high precision by removing an influence of noise when a gain of a variable gain amplifier is discontinuously changed corresponding to detected distance, with a simple configuration. A variable gain amplifier 135 configured to adjust a gain corresponding to a distance gate is used to be able to detect weak reflected wave from a distant object and to amplify a reflected wave from a short distance with a low gain. An offset noise from the variable gain amplifier 135 is prepared together with interference noise and self-mixing noise in advance as a replica signal of unwanted wave and the replica signal is removed from a baseband signal in detecting the object T.
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申请公布号 |
US8547273(B2) |
申请公布日期 |
2013.10.01 |
申请号 |
US201213604746 |
申请日期 |
2012.09.06 |
申请人 |
AOYAGI YASUSHI;KAMIMURA KAZUTAKA;ISHIDA YOSHIHITO;FURUKAWA ELECTRIC CO., LTD.;FURUKAWA AUTOMOTIVE SYSTEMS INC. |
发明人 |
AOYAGI YASUSHI;KAMIMURA KAZUTAKA;ISHIDA YOSHIHITO |
分类号 |
G01S13/00;G01S13/08;G01S13/58 |
主分类号 |
G01S13/00 |
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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