Frequency Estimation of Sinusoidal Signals in Multiplicative and Additive Noise
Frequency Estimation of Sinusoidal Signals in Multiplicative and Additive Noise
复制标题
乘性和加性噪声中正弦信号的频率估计
DOI：
10.1109/joe.2016.2516420
复制
发表时间：
2016
影响因子：
4.1
通讯作者：
Sun Bo
中科院分区：
文献类型：
--
作者：
Ge Feng Xiang;Wan Qun;Guo Lianghao;Sun Bo
本文研究了乘性和加性噪声中正弦信号的频率估计问题。基于分布源的参数定位和极大极小定理，提出了一种基于特征分析的频率估计方法。此外，我们还介绍了该方法中伪频率估计的处理和分析。特别地，与分布式信号参数估计器（DSPE）相比，不需要乘性噪声的先验知识。蒙特卡洛实验进行评估性能。仿真结果表明，与非线性最小二乘（NLS）方法和传统MUSIC算法相比，该方法在分离乘性和加性噪声中的密集正弦信号时具有更好的性能。
In this paper, frequency estimation of sinusoidal signals in multiplicative and additive noise is addressed. Based on the parametric localization of distributed sources and the minimax theorem, an eigenanalysis-based frequency estimator is proposed. Furthermore, we present processing and analysis for pseudofrequency estimates in the proposed method. Especially, a priori knowledge of multiplicative noise is not required as compared with the distributed signal parameter estimator (DSPE). Monte Carlo experiments are carried out to evaluate performance. Simulation results confirm that the proposed method provides better performance than the nonlinear least squares (NLS) approach and the conventional MUSIC algorithm for separating closely spaced sinusoidal signals in multiplicative and additive noise.