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- W2054317552 abstract "In chaos secure communication system, to separate effectively chaos and harmonic signal is an important way of testing systematic confidential performance. In recent years, the time-frequency analysis theory is more and more mature, effective time-frequency analytical algorithms are emerging constantly. The paper starts with the time-frequency character analysis of the chaos, the noise and the harmonic signal, and then puts forward a new two-step extraction method of time-frequency, aiming to complement each other's advantages and mutual fusion for wavelet multi-scale decomposition and empirical mode decomposition (EMD). It also discusses the influence of the amplitude, frequency of harmonic signal and noise energy on the extraction performance. Computer simulation verified that the methods have high availability." @default.
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- W2054317552 date "2011-09-01" @default.
- W2054317552 modified "2023-09-26" @default.
- W2054317552 title "A Novel Time-Frequency Method of Harmonic Signal Extraction in Chaotic Secure Communication System" @default.
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- W2054317552 doi "https://doi.org/10.1109/wicom.2011.6038685" @default.
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