Improved Parameter Estimation for Chirp Signals Based on Cyclostationarity  

作　　者：JIN Yan JI Hongbing 

机构地区：[1]School of Electronic Engineering, Xidian University, Xi ＇ an 710071, China

出　　处：《Chinese Journal of Electronics》2008年第2期309-313,共5页电子学报（英文版）

摘　　要：The problem of concern here is parameter estimation of chirp signals in the presence of multiplicative and additive noise. An improved cyclostationarity based algorithm is proposed to estimate the phase parameters. The novelty of the proposed algorithm lies in the iterative estimation of the second-order parameters. The main characteristics of the method include reduction in error propagation effect, increase in estimation accuracy, and operation over a wider range of phase parameter values. Simulation results demonstrate that the proposed algorithm has better performance than the conventional cyclostationary estimation method.

关 键 词：Chirp signal CYCLOSTATIONARITY Multiplicative noise Parameter estimation 

分 类 号：TN77[电子电信—电路与系统]