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莱斯信道的MLSD技术研究

Research on MLSD Techniques in Racian Channel
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摘要 主要研究在时变多径衰落信道下,基于Viterbi算法的最大似然序列检测技术(MLSD)。为了解决MLSD信道估计问题,使均衡器能够及时跟踪信道的变化,提出了基于逐幸存处理(PSP)和最小存活路径(MSP)的MLSD算法。在莱斯信道环境下,对上述算法进行了仿真。仿真结果表明,将RLS-MSP算法与减状态MLSD算法相结合的信道均衡技术具有对复杂信道的强跟踪能力,同时保证了较高的均衡性能和合理的复杂度。 The maximum likelihood sequence detection technique(MLSD) based on Viterbi algorithms is mainly studied in the timing variable multipath fading channel. In order to solve the problem of MLSD channel estimation and make the equalizer be able to track timely the change of channel,this paper brings forward MLSD algorithms based on PSP and MSP. In the Racian channel environ- ment, the simulations are done for the above algorithms. The simulation results show that the channel equalizer technique based on RLS-MSP and reduce state MLSD algorithms has strong tracking capability on complex channel,and assures high capability of equalization and reasonable complexity.
作者 王晓林
出处 《无线电通信技术》 2013年第6期15-17,共3页 Radio Communications Technology
关键词 衰落 均衡 信道估计 信道跟踪 fading equalization channel estimation channel tracking
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参考文献9

  • 1王斌.自适应均衡技术在散射通信中的应用[J].无线电通信技术,2005,31(3):53-55. 被引量:7
  • 2宋梁,胡波,凌燮亭.基于快衰落信道的一种新型自适应MLSE接收器[J].电子学报,2002,30(5):723-726. 被引量:1
  • 3周寒冰,刘海涛,李道本.快衰落信道下MLSD接收机的简化[J].北京邮电大学学报,2007,30(2):110-113. 被引量:1
  • 4CHIU M,CHAO C. Analysis of LMS-adaptive MLSE Equalization on Multipath Fading Channels[J].IEEE Transactions on Communications,1996,(12):1648-1692.
  • 5吴晓富,凌聪,孙松庚.利用线性均衡的减少状态序列估值[J].通信学报,1999,20(2):82-85. 被引量:4
  • 6WU J,AGHVAMI A H. A New Adaptive Equalizer with Channel Estimator for Mobile Radio Communications[J].IEEE Transactions on Vehicular Technology,1996,(03):1178-1190.
  • 7KOPSINIS Y,THEODORIDIS S. An Efficient Low Complexity Cluster-based MLSE Equalizer for Frequency-selective Fading Channels[J].IEEE Transactions on Wireless Communications,2006,(04):705-711.
  • 8SESHADRIN. Joint Data and Channel Estimation Using Blind Trellis Search Techniques[J].IEEE Transactions on Communications,1994.1000-1011.
  • 9CASTELLINI G,CONTI F,DEL RE E. A Continuously Adaptive MLSE Receiver for Mobile Communications:Algorithm and Performance[J].IEEE Transactions on Communications,1997,(01):80-89.doi:10.1109/26.554289.

二级参考文献7

  • 1孙宇昊,张庆荣,王刚,李道本.高维调制系统的低复杂度迭代多用户检测[J].北京邮电大学学报,2006,29(2):30-33. 被引量:3
  • 2姚彦 梅顺良.数字微波中继通信工程[M].北京:人民邮电出版社,1993..
  • 3John G. Proakis. Digital Communications[ M ]. McG2rawHill Companies, 1989.
  • 4李道本.信号检测与估值理论[M].北京:科学出版社,2002.
  • 5Eyuboglu M V.Reduced-state sequence estimation with set partitioning and decision feedback[J].IEEE Transon Commun,1998,36(1):544-553.
  • 6Rollins M E,Simmons S J.Simplified per-survivor-Kalman-processing in fast frequency selective fading channels[J].IEEE Transication Commun,1997,45(5):13-20.
  • 7Dai Q,Shwedyk E.Detection of bandlimited signals over frequency selective Rayleigh fading channels[J].IEEE Trans Commun,1994,42:942-959.

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