Electronics Optics & Control, Volume. 23, Issue 4, 85(2016)
A Single-Channel Convolutive Blind Separation Algorithm to Communication Signals with Same Carrier Frequency and Modulation
Considering the blind signal separation problem of the convolutive mixture communication signals with same carrier frequency and modulation by a single channel,a new algorithm was presented for convolutive blind signal separation.Firstly,a single channel mixing signal model of MISO was transformed into a multi-channel mixing signal model of MIMO,based on the characteristics of oversampling.Then,the influence of the time-delay differences between mixing signal components to the structure and rank of mixing matrix of MIMO was studied.Finally,mathematical derivation proved that:if the time-delay difference between mixing signal components was the integral multiples of symbol velocity,the mixing signal is not blindly separable.And simulation results showed the validation of the algorithm.
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WU Fang, GAO Qing-wei, WU Ming, RUI Guo-sheng. A Single-Channel Convolutive Blind Separation Algorithm to Communication Signals with Same Carrier Frequency and Modulation[J]. Electronics Optics & Control, 2016, 23(4): 85
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Received: Jun. 20, 2014
Accepted: --
Published Online: Sep. 12, 2016
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