基于循环谱的直扩信号到达时差研究  

Study on the Time Difference of Arrivals of the DSS Signals Based on Spectral Correlation Theory

作　　者：卜格鸿[1] 赵艳朝[1] 江修富[1] 高小玲[1] 

机构地区：[1]装备指挥技术学院信息装备系,北京101416

出　　处：《装备指挥技术学院学报》2007年第5期90-93,共4页Journal of the Academy of Equipment Command & Technology

摘　　要：以循环谱相关理论为基础,讨论了谱相关到达时差估计的模型和实现方法,并将该模型应用于有噪声和干扰条件下的直扩通信信号的到达时差估计中。给出了几种不同谱相关估计器下的计算机仿真结果,并与常规方法进行了比较。实验证明,它在直扩信号的测向和定位方面具有广阔的应用前景。Based on the spectral correlation theory, a model and algorithms of time difference of arrival （TDOA） estimation for cyclostationary signals are presented firstly, and then this model is used for TDOA estimation of the DSS signals in the highly noisy and jamming environment. In this paper, the results of simulation with different correlator are given finally, and compares with the conventional method. It is shown that this method can be used in the location and direction finding of DSS signals.

关 键 词：循环谱 时差 相关循环互相关法 谱相关比法 谱相关校正法 

分 类 号：TN971[电子电信—信号与信息处理]