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.