直扩信号的循环平稳特性分析  

DS/SS analysis of cyclic-stabilization characteristic

作　　者：戴乐[1] 张海波[1] 温志津[1] 高梅国[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《系统工程与电子技术》2004年第8期1038-1039,1052,共3页Systems Engineering and Electronics

摘　　要：根据谱相关的相关理论,提出了利用谱相关来实现低信噪比扩频信号的循环平稳特征提取方法,采用Monte Carlo方法进行计算机仿真,谱相关方法不仅在较低的信噪比条件下能很好地提取循环平稳特性,而且大大地降低了计算量。According to the correlative theory and application of spectral correlation, a method to detect the cyclic-stabilization characteristic of SD/SS by cyclic-spectrum is proposed. By the Monte-Carlo method, the result of simulation shows that the spectral correlation can work well on the lower SNR and greatly decreases the calculation quantity.

关 键 词：直接序列扩频 谱相关 扩频码速率 

分 类 号：TN914.3[电子电信—通信与信息系统]