无线通信

Vol.3 No.1 (February 2013)

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 :杭州电子科级大学通信工程学院

 

关键词:

扩频序列盲估计载波频率估计主分量分析Blind Estimation of M-SequenceCarry Frequency Estimation PCA

 

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.

文章引用:

颜海梅 , 沈雷 , 王泽辉 , 盛迪 (2013) 一种载波频率未知的扩频序列盲估计算法。 无线通信, 3, 18-21. doi: 10.12677/HJWC.2013.31004

 

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