AR自编码扩频系统中扩频序列的特性研究  

The Performance of the Spreading Sequences Generated by AR-SESS

作　　者：魏梅[1,2] 李仲令[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家重点实验室 [2]大连交通大学电气信息学院大连116028

出　　处：《电子与信息学报》2007年第2期291-295,共5页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60272008)资助课题

摘　　要：在扩展频谱通信中,扩频序列的性能与系统的抗多址干扰、抗多径衰落的能力,和信号的低截获率概率有密切关系,也关系到捕获与同步系统的实现。扩频序列的特性对扩频系统的性能有重要影响。在自编码扩频通信系统中,自编码扩频序列的特性对于自编码扩频系统的性能同样非常重要。该文详细分析了采用AR滤波方式产生的扩频序列的扩频特性。计算机仿真说明,用AR滤波提取自编码扩频序列完全满足自编码扩频通信的要求。In the spread spectrum communication, the characteristics of spreading sequences are important to the anti-jamming,anti multi-path fading,the low probability of intercept and the acquisition of the system. The characteristics of the spreading codes have tremendous impact on the performance of the spread spectrum system. Specifically, the characteristics of the spreading codes also play an important part in the Self-Encoded Spread Spectrum （SESS） communication system. In this paper, the characteristics of the spreading codes generated by AR filter in SESS are analyzed in detail. The results of the computer simulation show that the characteristics of self-encoded spread spectrum sequences obtained with AR filter meet the requirements of SESS system.

关 键 词：自编码扩频通信 AR滤波 相关性 线性复杂度 游程特性 

分 类 号：TN914.42[电子电信—通信与信息系统]