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單通道帶通信號的復基帶盲解卷積算法

鄢社鋒 馬遠良

鄢社鋒, 馬遠良. 單通道帶通信號的復基帶盲解卷積算法[J]. 電子與信息學報, 2004, 26(5): 702-708.
引用本文: 鄢社鋒, 馬遠良. 單通道帶通信號的復基帶盲解卷積算法[J]. 電子與信息學報, 2004, 26(5): 702-708.
Yah She-feng, Ma Yuan-liang. Complex Baseband Blind Deconvolution of Single Band-Pass Input[J]. Journal of Electronics & Information Technology, 2004, 26(5): 702-708.
Citation: Yah She-feng, Ma Yuan-liang. Complex Baseband Blind Deconvolution of Single Band-Pass Input[J]. Journal of Electronics & Information Technology, 2004, 26(5): 702-708.

單通道帶通信號的復基帶盲解卷積算法

Complex Baseband Blind Deconvolution of Single Band-Pass Input

  • 摘要: 該文提出了一種基于多途信道單通道接收的帶通數(shù)據(jù)(波束或傳感器輸出)自相關函數(shù)的盲解卷積算法。該算法先通過復解調將帶通信號頻譜搬移到0頻率附近,然后進行低通濾波和降采樣率,得到其復基帶信號。再針對單通道復基帶信號,以其自相關函數(shù)在零延時之外某區(qū)間內的實部平方和最小為準則,推導出復基帶多途信號盲解卷積的LMS自適應迭代算法。該方法能夠適用于帶通高斯信號和非高斯信號,與基于高階統(tǒng)計量的方法相比,對源信號概率分布具有較寬的適用面,計算機仿真結果驗證了該方法的正確性。
  • Bell A J, Sejnowski T J. An information maximization approach to blind separation and blind deconvolution[J].Neural Computation.1995, 7(6):1129-1159[2]Mo Shaomin, Shafai B. Blind equalization using higher order cumulants and neural network.IEEE Trans. on Signal Processing, 1994, SP-42(1i): 3209-3217.[3]Alkulaibi A, Soraghan J J. Hybrid higher-order cepstrum and functional link network-based blind equalizer[J].Signal Processing.1997, 62(1):101-109[4]Porat B, Friedlander B. Blind equalization of digital communication channels using high-order moments. IEEE Trans. on Signal Processing, 1991, SP-39(2): 522-526.[5]Zheng F C, McLaughlin S, Mulgrew B. Blind equalization of nonminimum phase channels: higher order cumulant based algorithm. IEEE Trans. on Signal Processing, 1993, SP-41(2): 681-691.[6]Feng Chih-Chun, Chi Chong-Yung. Performance of cumulant based inverse filters for blind deconvolution. IEEE Trans. on Signal Processing, 1999, SP-47(7): 1922-1935.[7]Haykin S. Adaptive Filter Theory, Third Edition, New Jersey: Prentice-Hall, 1996: 772-816.[8]Fiori S, Uncini A, Piazza F. Blind deconvolution by modified Bussgang algorithm. In Proc. of International Symposium on Circuits and Systems, Orlando, FL, USA, 1999, Vol.Ⅲ: 1-4.[9]Yan Shefeng, Ma Yuanliang. Blind deconvolution for SISO FIR channel based on autocorrelation function[J].In Proc. of IEEE Int Conf. Neural Networks Signal Processing, Nanjing, China.2003, Vol.2:1413-1416
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出版歷程
  • 收稿日期:  2002-12-09
  • 修回日期:  2003-05-19
  • 刊出日期:  2004-05-19

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