Chaotic characteristics of angular glint

In radar tracking and target control systems,the angular glint is a key factor in the generation of loss probability of targets tracking.This paper realizes the glint modeling of N-point scattering centers on the same line by the widely accepted phase gradient method,and two and five scattering center objects together with a typical target by Greco method are simulated.With references of foreign research results,the paper focuses on the comprehensive and effective design of the chaotic verification calculation flow based on the nonlinear dynamic theories,and the flow is proved valid by the Lorenz attractor model.The algorithm flow begins with the determination of optimum time lag and minimum embedding dimension,and is followed by the time-delay reconstruction in phase space.The results are presented with both qualitative calculations such as attractor configuration,poincare section and principal component analysis and quantitative calculations such as correlation dimension and largest lyapunov exponent,for the glint series,and with comparison with results obtained by Lorenz attractor,the chaotic traits of angular glint data are verified.This paper develops new reduction ideas to refrain the angular glint in order to decrease the loss probability of radar targets based on chaotic theories.