| 一种新型的CDMA通信信号侦收处理中的同步算法 |
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| 引用本文： | 刘宏生.一种新型的CDMA通信信号侦收处理中的同步算法[J].重庆邮电大学学报(自然科学版),2011,23(5):505-509. |
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| 作者姓名： | 刘宏生 |
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| 作者单位： | 电子工程学院 电子制约安徽省重点实验室，安徽 合肥 230037 |
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| 基金项目： | 国家自然科学基金(60672161) |
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| 摘 要： | 扩频码的同步是实现对截获到的CDMA无线通信信号信息进行解析的基本条件.依据CDMA2000移动通信系统各用户扩频码的特点,针对该类无中心节点的CDMA通信系统,提出一种新型的CDMA通信信号侦收处理过程中的同步算法,该算法采用信道和时延联合估计技术,通过把用户传播时延的影响置入信道响应矩阵中,首先由信道估计间接获取用...
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| 关 键 词： | 码分多址(CDMA) 信道估计 时延估计 多天线技术 同步算法 |
| 收稿时间： | 2011/4/25 0:00:00 |
A new synchronization algorithm of CDMA communication signal for reconnaissance |
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| LIU Hong-sheng.A new synchronization algorithm of CDMA communication signal for reconnaissance[J].Journal of Chongqing University of Posts and Telecommunications,2011,23(5):505-509. |
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| Authors: | LIU Hong-sheng |
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| Institution: | Key Laboratory of Electronic Restriction, EEI, Hefei 230037, P.R.China |
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| Abstract: | The synchronization is the basic factor of analysis to the CDMA communication signal intercepted. According to the characteristic of the subscriber spread-spectrum-code in CDMA2000 mobile communication system, a new synchronization algorithm for CDMA communication system is proposed to CDMA communication system without central node. Firstly by inputting the users' propagation delays into the channel impulse response matrix, synchronizing to the users' signal is indirectly achieved by the channel estimation scheme. Then based on the channel estimation a simple and efficient propagation delays estimation method is also proposed in detail. The application of multi-user estimation and multi-antenna technology made the algorithm more immune to multi-access interference and multi-path fading. The result of simulation shows that the algorithm is simple, effective and feasible. |
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| Keywords: | code division multiple access(CDMA) channel estimation delay estimation multi-antenna technology synchronization algorithm |
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