Passive Time Delay Estimation for Complex Noncircular Signals

被引:0
作者
Wen, Fei [1 ]
Wan, Qun [1 ]
Liu, Yipeng [2 ]
机构
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 611731, Peoples R China
[2] KU Leuven IBBT Future, Dept Elect Engieering KU Leuven, B-3001 Heverlee, Belgium
来源
2012 10TH INTERNATIONAL SYMPOSIUM ON ELECTRONICS AND TELECOMMUNICATIONS | 2012年
关键词
maximum likelihood; noncircular signal; time delay estimation (TDE);
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper addresses the passive time delay estimation (TDE) issue for complex signals. First, we derive the maximum likelihood (ML) estimator for the white Gaussian complex signal model with uncorrelated circular noise whereas the source signal is not restricted to be circular. Then, we present another TDE method using only the conjugate cross-correlation (CCC) measure to deal better with correlated noise for noncircular signals. Moreover, the Cramer-Rao lower bound (CRLB) of passive TDE is generalized to circular complex signals.
引用
收藏
页码:243 / 246
页数:4
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