| 摘要 |
Disclosed is a radar system antenna comprising a chirp signal generator, a transmission unit, a receiving unit, a mixer, one or more filters, and a filter control unit. The chirp signal generator generates a chirp signal. The transmission unit transmits the chirp signal to a target or an obstacle. The receiving unit receives a reflected signal reflected from the target or the obstacle, which is the chirp signal transmitted from the transmission unit. The mixer outputs a mixing signal corresponding to a frequency difference between the chirp signal generated by the chirp signal generator and the reflected signal. The filters have a band-pass or a band-stop attribute and filter the mixing signal. The filter control unit controls a band-pass frequency band or a band-stop frequency band, according to a location of the target or the obstacle. According to the present invention, a clutter signal can be effectively decreased, even if a location of the target or the obstacle is changed, and the target can be effectively detected. |
