THE METHOD OF SEPARATING HARMONIC SIGNALS FROM MULTIPLICATIVE AND ADDITIVE NOISES

作     者：Fan Yangyu Zhang Zhengwei Wei Xiaorong Zeng Li Wei Wei 

作者机构：School of Electronics and Information Northwestern Polytechnical University Xi＇an 710072 China Xi＇an Electric Power College Xi＇an 710032 China 

基　　金：Supported by the Natural Science Foundation of Shaanxi Province (No.2003F40) 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：2007年第24卷第6期

页      码：753-759页

摘      要：This paper focuses on the extraction of a harmonic signal from multiplicative and additive noises. A method is proposed in two stages: (1) to square the original discrete time series, which in- cludes both signals and noises, and form a new time series. By this means, the multiplicative noise is converted to additive noise; and (2) to filter out the noise by using existing noise removal schemes. With a large amount of simulation, experimental results demonstrated the efficiency and effective- ness of this newly developed method in terms of Signal-to-Noise Ratio (SNR) and other criteria. From the experiment, it is also found that: the two kinds of noises affect the SNR differently. In gen- eral, the SNR is not influenced by multiplicative Gaussian noise regardless of its variance. However, if both kinds of noise exist, the SNR decreases with the incensement of the Variance of Additive Noise to Multiplicative Noise Ratio (VAMNR). This analysis is also supported by simulation work.

主 题 词：数字技术 信号处理 通信理论 设计方案 

学科分类：0711[理学-心理学类] 0808[工学-自动化类] 0809[工学-计算机类] 07[理学] 08[工学] 080401[080401] 0804[工学-材料学] 080402[080402] 

D　O　I：10.1007/s11767-006-0090-9

馆 藏 号：203147730...