Car anticollision radar system

The utility model discloses a car anticollision radar system, this system includes: monolithic microwave integrated circuit is connected with the emit antenna and the receiving antenna of radar on the car for control emit antenna transmission radiofrequency signal and receiving antenna receiving back wave signal, because radiofrequency signal and echo signal obtain intermediate frequency signal, wherein, intermediate frequency signal is radiofrequency signal and echo signal difference frequency signal between the two, field programmable gate array FPGA is connected with monolithic microwave integrated circuit for receive the intermediate frequency signal that monolithic microwave integrated circuit sent, and handle intermediate frequency signal, obtain detection information, and carry out the synthetic aperture radar SAR imaging process based on intermediate frequency signal to crashproof object, display element is with FPGA communication connection for show detection information and SAR formation of image im