宽带信号源个数估计频域bootstrap方法  

Frequency-domain bootstrap method for source number estimation of wideband signals

作　　者：汪玲[1] 殷吉昊[1] 陈天麒[1] 

机构地区：[1]电子科技大学电工学院,四川成都610054

出　　处：《电波科学学报》2007年第1期130-133,共4页Chinese Journal of Radio Science

摘　　要：针对宽带和非平稳信号,在未知信源类型及其它任何统计特性条件下,基于bootstrap方法,利用样本频域协方差矩阵的特征值特性,结合多假设检验过程,提出一种新的信源个数估计方法。理论分析和仿真实验表明该算法的有效性。According to the property of eigenvalue of sample covariance matrix, a new method is proposed to estimate the wideband or nonstationary signals number. By combining with the multiple hypothesis testing and bootstrap method, the new method does not need to know the signal type and any other statistic information. Theoretical analysis and simulation results illustrate the effectiveness of the method.

关 键 词：参数估计 信源检测 BOOTSTRAP 

分 类 号：TN911[电子电信—通信与信息系统]