| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulse radar device capable of detecting an object existing on the periphery highly accurately regardless of a peripheral temperature change. SOLUTION: This pulse radar device 1 includes a trigger signal generation part 4 for generating and outputting a transmission trigger signal Gt and a reception trigger signal Gr. The trigger signal generation part 4 has variable period pulse generation circuits 41, 42, a reception trigger signal generation circuit 43 and a transmission trigger signal generation circuit 43. The variable period pulse generation circuit 41 generates an output signal D1 having a different period corresponding to a frequency setting signal Df based on a clock signal C, and the variable period pulse generation circuit 42 delays the output signal D1 as long as a fixed delay time Td by using a digital fixed delay circuit 70 operated based on the clock signal C, and then generates an output signal P2 based on the delayed output signal D2. The reception trigger signal generation circuit 43 and the transmission trigger signal generation circuit 44 generate respectively the reception trigger signal Gr and the transmission trigger signal Gt based on the output signals P1, P2. COPYRIGHT: (C)2009,JPO&INPIT
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