AR-SESS通信系统中扩频序列的相关性  

Correlation Performance of Spreading Sequences in AR-SESS

作　　者：魏梅[1] 李桂林[1] 曾洁[1] 贾世杰[1] 李仲令[2] 

机构地区：[1]大连交通大学电气信息学院,辽宁大连116028 [2]电子科技大学通信抗干扰技术国家级重点实验室,四川成都610054

出　　处：《大连交通大学学报》2008年第2期46-49,共4页Journal of Dalian Jiaotong University

基　　金：国家自然科学基金资助项目(60272008)

摘　　要：介绍了利用自回归(Auto-Regressive,AR)滤波的方法从信源序列中提取扩频码的AR自编码扩频通信系统(AR-SESS).在扩频通信中,扩频序列的相关特性对扩频系统的性能有重要影响.从理论上分析了采用AR滤波方式产生的扩频序列的相关特性,并进行Matlab仿真试验.仿真结果表明,自编码扩频序列具有良好的自相关和互相关特性,可以在扩频通信中实现多径识别和多址用户的区分.An AR-SESS system which employs AR filter technique is presented to obtain spreading codes from source sequences. In the spread spectrum communication, the correlation performance of the spreading codes has tremendous impact on the performance of the spread spectrum system. In this paper, correlation performance of the spreading codes generated by AR filter in SESS is analyzed in detail. The results of the computer simulation show that the self-encoded spread spectrum sequences obtained with AR filter have good correlation and meet the requirements of SESS system.

关 键 词：自编码扩频通信 AR滤波 相关性 

分 类 号：TN914[电子电信—通信与信息系统]