Patent Document ID: 10042046
Application ID: 14792710
Patent Status: 1

Claim One:
1. A method for generating a high resolution two-dimensional (2D) radar image using a processor, comprising steps: transmitting a radar pulse by a transmit antenna at an area of interest; receiving echoes, corresponding to a reflection of the radar pulse in the area of interest, at a set of receive arrays, wherein each array includes a set of receive antennas that are static and distributed at different locations at a same side of the area of interest with an orientation within a predetermined angular range; sampling the echoes for each receive array to produce distributed data for each array; applying a compressive sensing (CS) procedure to the distributed data to generate the high resolution 2D radar image; initializing a residual signal using the received echoes, and wherein the CS procedure includes iterative steps; generating a two-dimensional (2D) radar image from the distributed residual signal; applying a threshold and shrink process to the 2D radar image to produce a sparse image for a current iteration; comparing the sparse image of the current iteration to a sparse image of a previous iteration, and if a relative error between the sparse image of the current iteration and the sparse image of the previous iteration is smaller than a predetermined threshold then the sparse image of the current iteration is the high resolution 2D radar image, and otherwise: subtracting the signal of the current sparse image from the dense residual signal and iterating the generating, applying and comparing steps.