具有凹特性的新盲均衡准则
A NOVEL BLIND EQUALIZATION CRITERION WITH CONVEXNESS
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摘要: 本文对于通信信道提出了一种新的盲均衡准则。该准则或价值函数是关于均衡器抽头权矢量和误差概率的严格凹函数。本文证明了使用梯度算法,新价值函数的全局收敛性能得到保证。分析和计算机模拟结果表明,本文提出的准则,无论在计算复杂度上,还是在收敛速度上,都具有优越的性能。
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关键词:
- 盲均衡; 凹特性; 价值函数
Abstract: A novel criterion of blind equalization is introduced for communication channels. The criterion or cost-function with respect to the complex tap-weight vector of the equalizer and to the error probability is strictly a convex function. By using gradient algorithm, the global convergence of the cost-function can be guaranteed. Analysis and simulation results demonstrate that the proposed criterion performs very well on both the computational complexity and the convergence rate. -
Y. Sato, IEEE Trans. on COM, COM-23 (1975)6, 672-682.[2]D.N. Godard, IEEE Trans. on COM COM-28(1980)11, 1867-1875.[3]A. Benveniste, M. Goursat, IEEE. Trans. on COM, COM-32(1984)8, 871-883.[4]G.B. Giannakis, J.M. Mendel, IEEE Trans. on ASSP, ASSP-37(1989)3, 360-377.[5]D. Hatzinakos, C.L. Nikias, IEEE Trans. on COM, COM-39(1991)5, 669-682.[6]Daoben Li, J.G. Proakis, Decisiun Directed Blind Equalization, IEEE ISIT91, Budapest, pp. 46-47.[7]G. Picchi, G. Prati, IEEE Trans. on COM, COM-35(1987)9, 877-887.
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