基于高阶统计处理技术的m-序列检测及识别
doi: 10.3724/SP.J.1146.2005.01671
The Detection and Recognition of m-Sequence Using Higher-Order Statistical Processing
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摘要: m-序列是扩频通信中使用最广泛的一种扩频码序列。该文对m-序列的三阶相关函数(TCF)，偏三阶相关函数及其峰值特性进行了研究，提出了基于偏TCF峰值特性的m-序列的检测方法和识别标准。仿真实验证明偏三阶相关函数具有与三阶相关函数所对应截取区域相同的峰值特性，根据这一特性可以对m-序列进行检测及识别，这也将为检测和识别直接序列扩频(DS-SS)信号提供理论依据。仿真实验还证明了该文提出的m-序列检测方法及识别标准的正确性。Abstract: m-sequence is one of the most widely used codes in spread spectrum communications. The triple correlation function(TCF) of m-sequence， the partial triple correlation function of m-sequence and its peak feature are studied and described in this paper. Then a detection method and a recognition standard of m-sequence are proposed based on the peak feature of the partial TCF. It is testified by simulation that the peak feature of the partial TCF is same as that of the TCF during the corresponding intercepted section. With the peak feature m-sequence can be detected and recognized and this is the basis for detecting and recognizing the direct sequence spread spectrum signals. The detection method and the recognition standard of m-sequence have been proved available by the simulation.
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张庆，李艳斌.高阶统计技术在m-序列检测与识别中的应用[J]. 无线电工程. 2004, 34(9): 40-49. Zhang qing and Li Yan-bin. Higher-order statistical technique for blind detection and identification of m - sequence. Radio Engineering of China, 2004, 34(9): 40-49.[2]沈允春. 扩谱技术[M]. 北京: 国防工业出版社， 1995: 20-58.[3]朱近康. 扩展频谱通信及其应用[M]. 合肥: 中国科学技术大学出版社, 1993: 118-129.[4]Adams E R.[J].Gouda M, and Hill P C J. Detection characterisation of DS/SS signals using higher-order correlation[A]. Proc. IEEE ISSSTA96[C], Mainz, Germany.1996,:-[5]Batty K E and Adams E R. Detection and blind identification of m-sequence codes using higher order statistics[C]. Proceedings of IEEE on Signal Processing Workshop, Caesarea, Israel, 14-16, June 1999: 16-20.[6]Adams E R, Gouda M, and Hill P C J. Statistical techniques for blind detection discrimination of m-sequence codes in DS/SS systems[C]. Proc. IEEE 5th ISSSTA symposium98, Sun City, South Africa, 2-4 September 1998: 853-857.[7]Adams E R and Hill P C J. Detection of direct sequence spread spectrum signals using higher-order statistical processing[C]. Proc. Int. Conference on Acoustics Speech and Signal Processing, ICASSP97, Munich, Germany, 20-24 April 1997: 3849-3852.[8]段凤增. 信号检测理论[M]. 哈尔滨: 哈尔滨工业大学出版社, 2002: 49-84. -
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