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Adaptive Integral Operators for Signal Separation
Hu, Xiyuan1; Silong Peng1; Hwang, Wen-Liang2
Source PublicationIEEE SIGNAL PROCESSING LETTERS
2015
Volume22Issue:9Pages:1383-1387
AbstractThe operator-based signal separation approach uses an adaptive operator to separate a signal into a set of additive subcomponents.In this paper, we show that differential operators and their initial and boundary values can be exploited to derive corresponding integral operators. Although the differential operators and the integral operators have the same null space, the latter are more robust to noisy signals. Moreover, after expanding the kernels of Frequency Modulated (FM) signals via eigen-decomposition,the operator-based approach with the integral operator can be regarded as the matched filter approach that uses eigen-functions as the matched filters. We then incorporate the integral operator into the Null Space Pursuit (NSP) algorithm to estimate the kernel and extract the subcomponent of a signal. To demonstrate the robustness and efficacy of the proposed algorithm, we compare it with several state-of-the-art approaches in separating multiple-component synthesized signals and real-life signals.
KeywordIntegral Equation Narrow Band Signal
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/19678
Collection智能制造技术与系统研究中心_多维数据分析
Affiliation1.Institute of Automation, Chinese Academy of Sciences
2.Institute of Information Science, Academia Sinica
Recommended Citation
GB/T 7714
Hu, Xiyuan,Silong Peng,Hwang, Wen-Liang. Adaptive Integral Operators for Signal Separation[J]. IEEE SIGNAL PROCESSING LETTERS,2015,22(9):1383-1387.
APA Hu, Xiyuan,Silong Peng,&Hwang, Wen-Liang.(2015).Adaptive Integral Operators for Signal Separation.IEEE SIGNAL PROCESSING LETTERS,22(9),1383-1387.
MLA Hu, Xiyuan,et al."Adaptive Integral Operators for Signal Separation".IEEE SIGNAL PROCESSING LETTERS 22.9(2015):1383-1387.
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