| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an FMCW radar system, even when intermittently transmitting/receiving signals by one antenna, capable of preventing deterioration of target detection capacity. <P>SOLUTION: The FMCW radar system includes a transmission part, an antenna, a reception part, and an antenna sharing part. The transmission part includes a local signal generation part, a transmission signal generation part, a transmission side mixer, and a transmission side control part for intermittently outputting a transmission/reception start command. The reception part includes a reception side mixer for generating a beat wave, a high-pass filter and a target information extraction part. The transmission signal generation part successively outputs an amplitude gradual increase signal in which amplitude is gradually increased from zero up to a predetermined amplitude after reading the transmission/reception start command, a chirp signal in which frequency is continuously changed in a predetermined range, and an amplitude gradual decrease transmission signal in which amplitude is gradually reduced down to zero. <P>COPYRIGHT: (C)2012,JPO&INPIT |
