METHOD, SYSTEM AND DEVICE FOR RADAR BASED HIGH RESOLUTION OBJECT DETECTION

摘要

ABSTRACT In an embodiment of the present disclosure, a Radar transceiver for object detection comprises a two dimensional antenna array receiving plurality of a reflected radio frequency (RF) signals, a mux-adder selectively adding the reflected RF signals in first mode and selectively multiplexing the reflected RF signals in a second mode, a range bin detector determining a valid range bins in the first mode and a three dimensional (3D) image reconstructor operating on the valid range bins to reconstruct a 3D image of the object in the second mode. In that the two dimensional antenna array comprises antenna elements arranged in K rows and M columns, and the mux-adder adds a RF signal received on the M columns of each row in the first mode. The mux-adder multiplexes the RF signal received on the M columns of each row in the second mode. Further, the radar transceiver further comprises K number of circuit blocks each for adding corresponding RF signals received on the K rows in the first mode and multiplexing in the second mode. In that, the first mode is operative over a first chirp and the second mode is operative over the M chirps. The radar transceiver also comprises K number of RF receivers each converting the RF signal from K number of circuit blocks to digital data sequence. In that, the 3D image reconstructor comprising a high speed narrow band filter operative over the valid range bins.