基于部分匹配滤波的伪码捕获方法研究  

Pseudo-Noise Code Acquisition Method Based on Partial Matched Filter

作　　者：国世超[1] 陈安乐[1] 韩方剑[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《电子信息对抗技术》2010年第2期20-23,共4页Electronic Information Warfare Technology

摘　　要：研究了高斯白噪声环境下部分匹配滤波的伪码捕获方法的性能,推导了该方法的检测概率和虚警概率。基于部分匹配滤波的伪码捕获方法相对于传统的全匹配滤波法,既可减少处理时间,又能节省系统资源。并利用MATLAB工具对不同信噪比环境下的伪码捕获性能进行仿真,结果表明该方法在一定信噪比条件下是实用的。Comparing with the method based on traditional full matched filter, a PN code acquisition method based on partial matched filter can save more processing time as well as the system resource. The performance of partial matched filter is analyzed, and the detection probability and false alarm probability is given. Finally, simulation based on Matlab for PN code acquisition, which corresponds to the different SNR （signal to noise ratio）, shows that the method is available when the SNR is suitable.

关 键 词：部分相关 匹配滤波器 伪码捕获 

分 类 号：TN971.1[电子电信—信号与信息处理]