Extending the threshold and frequency range for phase-based frequency estimation

被引：38

作者：

Fowler, ML ^{[1
]}

Johnson, JA

机构：

[1] SUNY Binghamton, Dept Elect Engn, Binghamton, NY 13902 USA

[2] Lockheed Martin Fed Syst, Owego, NY 13827 USA

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1999年 / 47卷 / 10期

关键词：

filter banks; frequency estimation; quadrature mirror filters;

D O I：

10.1109/78.790666

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：

Standard phase-based frequency estimation has a threshold that is high; is frequency dependent, and does not decrease with increasing signal length. These problems are solved by processing the signal with a highly overlapped filter bank before applying phase-based frequency estimation. By exploiting decimation, a closed-form matrix inversion, and cascades of simple filter banks, the computational complexity is kept low.

引用

页码：2857 / 2863

页数：7

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