A Robust Algorithm of Doppler Parameters Estimation for Airborne Radar
Li Gang①; Xu Jia①②; Peng Ying-ning①; Xia Xiang-gen③
①Department of Electronic Engineering, Tsinghua University, Beijing 100084, China; ②Airforce Radar Academy, Wuhan 430010, China;③Department of Electrical and Computer Engineering, University of Delaware, Newark, DE 19716, USA
Abstract:Based on the Doppler Distributed Clutter (DDC) model, this paper studies the distribution of eigenvalues of the clutter covariance matrix and proposes a robust algorithm of Doppler parameters estimation for airborne radar. Compared with existing methods, the proposed algorithm has comparable performance for Doppler centroid estimation and shows superiority for Doppler spread estimation. The proposed algorithm is competent for most practical applications of airborne radar such as moving target detection (MTD) using Pulse-Doppler (PD) radar, especially for few sampling case. Numerical simulations prove the effectiveness of the proposed algorithm.