多滞后时刻四阶累积量的正弦信号频率估计  

Frequency Estimation of Sine Signals Based on Multi-delay-time 4th Order Accumulation

作　　者：邓松[1] 唐斌[2] 陈林[3] 

机构地区：[1]四川大学图书馆,四川成都610065 [2]电子科技大学电子对抗实验室,四川成都610054 [3]四川大学制造科学与工程学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2003年第4期94-96,共3页Journal of Sichuan University (Engineering Science Edition)

摘　　要：在含噪正弦信号频率估计方法中,通过开发高斯色噪声中正弦信号的四阶累积量切片结构、以及由这些累积量构成的Hankel矩阵性质,提出了多滞后时刻累积量的高分辨正弦信号频率估计方法。现有的基于高阶统计的算法中没有充分利用多滞后时刻的四阶累计量。本文提出了一种基于多滞后时刻四阶累计量的正弦信号频率估计的ESPRIT和MUSIC算法。理论分析表明,这种算法有助于提高参数估计的性能。Through the development of the multidelaytime 4th order accumulation slice structure of Gas noise sine signal and Hankel matrix features composed of these accumulation, the highresolution sine signal evaluation method is proposed from the accumulation of delay time. This article proposed the frequencyestimation method of high resolution sine signals based on the ESPRIT and MUSIC algorithms on account of the multidelaytime 4th order accumulation. The analysis indicates that the algorithm is helpful to improve the performance of parameter estimation.

关 键 词：四阶累积量 频率估计 算法 

分 类 号：TN971[电子电信—信号与信息处理]