Ultrasonic wave reversing radar system based on time difference of arrival (TDOA)

An ultrasonic wave reversing radar system based on time difference of arrival (TDOA) comprises an automobile, a plurality of range-measurement modules arranged on the automobile, a receiving module, a display module and an alarm output module. Each range-measurement module comprises an ultrasonic wave sensor, a radio frequency sensor, a first emission module and a second emission module, wherein each ultrasonic wave sensor is connected with each first emission module, each radio frequency sensor is connected with each second emission module, each receiving module is respectively connected with each first emission module and each second emission module, and the display module and the alarm output module are respectively connected with the receiving module. The ultrasonic wave reversing radar system has the advantages of being strong in anti-interference capacity, high in measurement accuracy and high in safety performance without measurement blind areas.