Monopulse Angle Measurement Algorithm for One-Dimensional Distributed Coherent Array

Abstract

A single pulse angle measurement Algorithm for distributed coherent array is proposed to deal with the ambiguity of angle measurement caused by the phenomenon of sparsely distributed grating lobes in distributed coherent arrays. The method is based on a one-dimensional distributed array model, and the rough estimation results and ambiguous Precise estimation results are obtained by the single pulse angle measurement algorithm for single array and distributed arrays. Solving the Ambiguity of the Precise estimation results with the rough estimation results to obtain high-precision angle measurement results without ambiguity. The simulation results show that the method can achieve correct Ambiguity Resolution and high-precision angle measurement while meeting the signal-to-noise ratio requirements, and the angle measurement accuracy also increases with the increase of the number of subarrays.