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G. Berel, C. Bouder. Blind estimation of the pseudo-random sequence of a direct sequence spread spectrum signals. MILCOM 2000. 21st Century Military Communications Con- ference Proceedings, 2000, 2: 967-970.

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• 标题: 一种载波频率未知的扩频序列盲估计算法Blind Estimation of M-Sequence in CDMA Signal without the Information of Carry Frequency

  作者: 颜海梅, 沈雷, 王泽辉, 盛迪

  关键字: 扩频序列盲估计, 载波频率估计, 主分量分析Blind Estimation of M-Sequence;Carry Frequency Estimation; PCA

  期刊名称: 《Hans Journal of Wireless Communications》, Vol.3 No.1, 2013-02-27

  摘要: 提出一种载波频率未知情况下，利用主分量分析法盲估计直接扩频序列的算法。算法把接收到的信号投影到扩频码所在向量域，通过搜索投影向量的特征值，可以在没有载波频率、信道先验信息的情况下，估计得到扩频序列和载波频率。理论和仿真结果表明了算法的有效性。 This paper propose a new method to blind estimation m-sequence in DS-CDMA signals without the informa- tion of carry frequency. A new model was built and the m-sequence can be blindly estimated by PCA in this model. The carry frequency can also be got. Analytical and simulated results show that the proposed method has a good perfor- mance.