首页>
外国专利>
Doppler frequency spectrum de-emphasis for automotive collision avoidance radar system
Doppler frequency spectrum de-emphasis for automotive collision avoidance radar system
展开▼
机译:汽车防撞雷达系统的多普勒频谱去加重
展开▼
页面导航
摘要
著录项
相似文献
摘要
A Doppler control circuit for a CW or pulse Doppler radar system for monitoring not only the phase shift between echo signals from several targets but also the amplitude difference between the several targets and to further tune the radar to a particular target among one or more targets from which echo signals return. The control circuit can be used in state of the art CW or pulse Doppler type radar systems. In a further system, a special circuit is provided for conditioning selected portions of the Doppler frequency spectrum to attenuate or de-emphasize portions of the echo signal corresponding to selected targets in the radar system environment, such as rain or stationary wayside objects, in order to give such echo signals less weight in determining roadway hazards.
展开▼