| 摘要 |
An intruder detection system (10) for a motor vehicle comprising a radar sensor having a number of faces; a transmitter antenna (20) mounted on each face; at least one receiver antenna (22,24) mounted on each face; a transceiver (18) associated with each face for producing a frequency modulated continuous wave radar signal for transmission by the transmitter antenna and for receiving the reflected frequency modulated continuous wave radar signal received by the receiver antenna; and processing means (34-44) for analysing the reflected frequency modulated continuous wave radar signal received by each receiver antenna and for indicating the presence or absence of an intruder from the analysis of the reflected frequency modulated continuous wave radar signal received by each receiver antenna. <IMAGE> |
