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基于选择性合并频率分集的多载频盲均衡算法 被引量：3

Multiple carrier frequencies blind equalization algorithm based on selective combining frequency diversity
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摘要 水声信道的多径传播和衰落特性常在接收端引起码间干扰,严重影响了水声通信质量。为了减少码间干扰,提高通信质量,在分析频率分集技术和常数模盲均衡性能的基础上,提出了一种基于选择性合并频率分集的常数模盲均衡算法(SC-CMA)。该算法利用了频率分集来减少衰落的影响,克服码间干扰,具有收敛速度快、均方误差小的特点。计算机仿真结果,验证了该算法的有效性。 The multipath and fading acoustic channels always introduce Inter-Symbol Interference （ISI） in the receiver and affect underwater acoustic communication quality seriously. In order to improve the communication system performance and decrease Bit Error Rate （BER）, Selective Combining frequency diversity based Constant Modulus blind equalization Algorithm （SC-CMA）is proposed on the basis of analyzing frequency diversity and CMA＇s performance. The proposed algorithm employs frequency diversity for reducing fading effect and overcoming ISI. So,the proposed algorithm has faster convergence speed and smaller mean square error, and its validity is verified by computer simulation.
作者 郭业才 朱婕
机构地区 南京信息工程大学电子与信息工程学院 安徽理工大学电气与信息工程学院
出处 《舰船科学技术》 2009年第2期121-123,140,共4页 Ship Science and Technology
基金 全国博士学位论文作者专项资助项目(200753) 江苏省高等学校自然科学基金资助项目(08KJB510010 07KJB510068)
关键词 常数模算法 频率分集 盲均衡 水声信道 constant modulus algorithm frequency diversity blind equalization underwater acoustic channel.
分类号 TN929.3 [电子电信—通信与信息系统]
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  • 1艾宇慧.[D].哈尔滨工程大学,1997.
  • 2E. Bigliei, J. Proakis and S. Shamai. Fading channels: Information -theoretic and communications aspects[J]. IEEE Transactions on information theory. 1998, 44(6): 2619-2692.
  • 3C. R. Johnson Jr., P. Schniter, J. T. Endres, et al. Blind equalization using the constant modulus criterion: a review[J]. Proceedings of the IEEE. 1998, 86(10):1927-1949.
  • 4A TawFtk, E Abdel-Raheem, P Agathoklis. A modified dithered signed-error constant- modulus algorithm for blind adaptive equalizer[C]. The 7th IEEE International Conference on Electronics,Circuits and Systems, 19-20 Dec. 2000,Vol.2, 688 -691.
  • 5P Schniter, C R Jr Johnson. Dithered signed-error CMA: robust,computationaUy efficient blind adaptive equalization Signal Processing[J]. IEEE Transactions on Signal Processing, 1999,47(6): 1592-1603.
  • 6L. Tong. Blind sequence estimation[J]. IEEE Transactions on communications. 1995,43(2):2987-2994.
  • 7Weeracody V, Kassan A S. Dual-mode type algorithm for blind equalization[J]. IEEE Trans. on Communications, 1994,40(2) :22 - 28.
  • 8Monisha Ghosh. A sign-error algorithm for blind equalization of real signals[A]. Proc. of the IEEE ICASSP[C]. 1998. 3365-3368.
  • 9Schniter P, Johnson C R Jr. The dithered signed-error constant modulus algorithm[A]. Proc. of the IEEE International Conference on Acoustics,Speech and Signal Processing[C]. Seattle WA, 1998. 3353- 3356.
  • 10Johnson C Rjr, Schniter P, EndresJT, et al. Blind equalization using the constant modulus criterion: a review[J]. Proceedings of the IEEE,1998, 86(10):1927- 1949.

共引文献25

同被引文献21

  • 1袁建华,殷学民,邹谋炎.一种有效的超分辨率重建计算方法[J].中国科学院研究生院学报,2006,23(4):514-519. 被引量：2
  • 2梁永明,罗汉文,黄建国.MIMO-OFDM系统中一种基于自适应滤波的信道估计方法[J].电子与信息学报,2007,29(2):310-313. 被引量：14
  • 3Guo Ye-cai,Han Ying-ge,Rao Wei.Blind equalization algorithms based on different error equations with exponential variable step size[C]∥The First International Symposium on Test Automation & Instrumentation (ISTAI).Xi'an,China:World Publishing Corporation,2006:497-501.
  • 4Trubuil Joel,Goalic,Andre,Beuzelin Nicolas.A low speech underwater acoustic phone using channel coding for quality Improvement[C]∥Military Communications Conference.Orland,Florida,USA:MILCOM,2007:1-7.
  • 5Joel Labat,Christophe Laot.Blind adaptive multeple-input decision-feedback equalizer with a s elf-optimized configuration[J].IEEE Transactions on communications,2001,49(4):646-654.
  • 6Cooklev T.An efficient architecture for orthogonal wavelet transforms[J].IEEE Signal Processing Letters,2006,13(2):77-79.
  • 7Elahmar S A,Djebbari A,Bouziani M,et al.Performance of fractionally spaced blind channel shortening[J].International Journal of Applied Engineering Research,2007,2(1):191-199.
  • 8Mirbagheri A,Yoon Y C.A Blind adaptive receiver for Interference suppression and multipath reception in long-code DS-CDMA[J].IEEE International Conference on Communications ICC 2002,2002,(1):242-246.
  • 9ZHANG Li-yi, CHEN Lei, SUN Yun-shan.Variable step-size CMA blind equalization based on non-linear function of error signal[C]//Proc of International Conference on Communications and Mobile Computing.Piscataway:IEEE Press,2009:396-399.
  • 10ZIPF J G F, TOBIAS O J, SEARA R.A VSSLMS algorithm based on error autocorrelation[C]//Proc of the 16th European Signal Proces-sing Conference.Piscataway:IEEE Press,2008:25-29.

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二级引证文献8

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2009年 第2期

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