发明名称 |
RADAR DEVICE |
摘要 |
<p>It is intended to make it possible to acquire a digital signal at an interval that is shorter than the sampling interval of an AD conversion circuit and to thereby increase the distance resolution of a radar device. Based on a pulse signal having a constant interval that is generated by and output from a pulse generator 101, a pulse transmission position adjuster 102 generates a transmission signal in which transmission positions are adjusted by shifting the timing of the pulse signal in units of a time adjustment amount ± that is shorter than a sampling interval of an AD converter 114 of a receiver. In doing so, the pulse transmission position adjuster 102 delays transmission positions of respective pulses of the pulse signal in units of the time adjustment amount ± in a pattern that ends when the transmission timing becomes equal to the timing of the original pulse signal. A distance detector 115 generates a reception signal through pseudo oversampling having an interval that is equal to the time adjustment amount ± according to transmission position information indicating the transmission positions of the respective pulses of the pulse signal on the basis of a digital signal generated by sampling a reception signal corresponding to the transmission signal with the AD converter 114.</p> |
申请公布号 |
EP2618173(A4) |
申请公布日期 |
2015.05.27 |
申请号 |
EP20110824760 |
申请日期 |
2011.09.12 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
MUKAI, HIROHITO;KISHIGAMI, TAKAAKI;NAKAGAWA, YOICHI |
分类号 |
G01S7/282;G01S7/285;G01S7/292;G01S13/10 |
主分类号 |
G01S7/282 |
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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