基于匹配相关法的罗兰C信号周期识别  

A Method of Cycle Identification for Loran-C Signal Based on Matched Correlation

作　　者：陈秋月[1] 杨会成[1] 江太辉[1] 

机构地区：[1]安徽工程科技学院安徽省电气传动与控制重点实验室,安徽芜湖241000

出　　处：《无线电工程》2007年第12期27-29,共3页Radio Engineering

基　　金：安徽省教育厅自然科学基金(2006KJ059B)

摘　　要：在分析比较了国内外的罗兰C周期识别算法上,提出了一种利用匹配相关进行周期识别的方法。从理论上讲,由于已知罗兰C信号的波形,采用这种方法是罗兰C信号的最佳接收,它能有效减少白噪声的干扰。在此基础上改进的相关法周期识别能够解决强噪声环境下的跳周问题。实验结果表明,该方法能够有效检测到标准过零点,周期识别精度可达0.1μs。Based on analysis and comparison of domestic and overseas algorithms of Loran-C cycle identification, a new method of cycle identification using matched correlation is presented. Theoretically, it is an optimal receiving for Loran-C signal, which can effectively reduce the interference from the white noise, because the Loran-C signal is already known. The improved algorithm can also solve cycle-skipping problem in the environment of strong noise. Experimental result shows that it has higher performance of detecting the standard zero-crossing point and the cycle identification precision can really achieve 0. 1μs.

关 键 词：无线电导航 罗兰C信号 周期识别 匹配相关 

分 类 号：TN927.2[电子电信—通信与信息系统]