Instantaneous frequency estimation of polynomial phase signals

被引：7

作者：

Cakrak, F ^{[1
]}

Loughlin, PJ ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Elect Engn, Pittsburgh, PA 15261 USA

来源：

PROCEEDINGS OF THE IEEE-SP INTERNATIONAL SYMPOSIUM ON TIME-FREQUENCY AND TIME-SCALE ANALYSIS | 1998年

关键词：

D O I：

10.1109/TFSA.1998.721483

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：

We develop a new multi-window time-frequency method for estimating the instantaneous frequency (IF) of constant amplitude polynomial FM signals in the presence of noise. The method is computationally simple, asymptotically unbiased for noise-free signals, and provides a signal to noise ratio(SNR) threshold improvement of about 3 dB over other estimators, including the cross-polynomial Wigner time-frequency method (X-PWVD), for quadratic and cubic FM signals.

引用

页码：549 / 552

页数：4

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