发明名称 |
Radar apparatus with determination of presence of target reflections |
摘要 |
A low-cost compact radar apparatus measures a distance to a target and the relative speed of the target. The apparatus has a transmitter for transmitting a pulse signal and a receiver for receiving a reflected pulse signal from the target. The received signal is converted into a binary signal, which is sampled by a sampler and is accumulated in a cumulative storage unit. Addresses of the storage unit correspond to an interval between the transmission and reception of the pulse signal. According to the interval, the distance and relative speed of the target are calculated at high speed. The apparatus carries out many accumulation operations, to improve an S/N ratio and speedily detect even a weak reflected signal.
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申请公布号 |
US5565870(A) |
申请公布日期 |
1996.10.15 |
申请号 |
US19950477938 |
申请日期 |
1995.06.07 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
FUKUHARA, HIROSHIGE;KAMISHIMA, HIROYUKI;MURAMATSU, TOSHIRO |
分类号 |
G01S7/292;G01S13/93;G01S17/58;G01S17/93;(IPC1-7):G01S13/93 |
主分类号 |
G01S7/292 |
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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