发明名称 |
RADAR TARGET DETECTING METHOD AND RADAR DEVICE USING THE TARGET DETECTION METHOD |
摘要 |
A radar device includes a transmission antenna (40) and a reception antenna (50) having a plurality of antenna elements (51) to (55). The radar device switches the antenna elements (51) to (55) in synchronization with a modulation cycle, thereby obtaining a reception signal. At this time, the radar device obtains the reception signal by switching the antenna elements using a first measurement phase and a second measurement phase having different switching cycles as one set. The radar device calculates an azimuth sine value sin ¸ 1 from the reception signal in the first measurement phase and also calculates an azimuth sinusoidal value sin ¸ 2 from the reception signal in the second measurement phase. Then, the radar device calculates a relative velocity V from the azimuth sine value sin ¸ 1 , the azimuth sine value sin ¸ 2 , an interval time difference ”t between switching cycles, and an inter-antenna element spacing d. |
申请公布号 |
EP2060929(A1) |
申请公布日期 |
2009.05.20 |
申请号 |
EP20070829690 |
申请日期 |
2007.10.12 |
申请人 |
MURATA MANUFACTURING CO. LTD. |
发明人 |
ISHII, TORU;NISHIMURA, TETSU |
分类号 |
G01S13/42;G01S13/34;G01S13/46;G01S13/93 |
主分类号 |
G01S13/42 |
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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