Joint estimation of the number and the frequencies of multiple sinusoids from very noisy data

被引：0

作者：

Lo Presti, L ^{[1
]}

Olmo, G ^{[1
]}

Magli, E ^{[1
]}

机构：

[1] Politecn Torino, Dipartimento Elettr, I-10129 Turin, Italy

来源：

1998 URSI SYMPOSIUM ON SIGNALS, SYSTEMS, AND ELECTR ONICS | 1998年

关键词：

D O I：

10.1109/ISSSE.1998.738058

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：

In this paper we address the problem of the joint estimation of the number and frequencies of multiple sinusoids. Extremely severe noise conditions are dealt with; consequently, an approximation of the MLE must be employed. A closed loop detection and estimation system is studied, where the statistical information about the unknown frequencies is progressively refined using the results of the estimation algorithm, in such a way that the detection algorithm can exploit improved a priori information. Simulations have shown that this scheme achieves encouraging performance as for robustness towards noise.

引用

页码：162 / 166

页数：5

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