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
收藏
页码：2857 / 2863
页数：7
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