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ICASSP
2009
IEEE

Instantaneous frequency rate estimation for high-order polynomial-phase signal

10 years 4 months ago
Instantaneous frequency rate estimation for high-order polynomial-phase signal
—Instantaneous frequency rate (IFR) estimation for high-order polynomial phase signals (PPSs) is considered. Specifically, an IFR estimator with only a second-order nonlinearity is proposed. The asymptotic mean-squared error (MSE) of the proposed IFR estimator is obtained via a multivariate first-order perturbation analysis. Our results show that the proposed estimator yields a smaller MSE and a lower signal-to-noise ratio (SNR) threshold than a popular IFR estimator involving higher nonlinearity. The proposed IFR estimator is also extended to estimate the phase parameters of a PPS. Numerical studies are presented to illustrate the performance of the proposed estimator.
Pu Wang, Hongbin Li, Igor Djurovic, Jianyu Yang
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICASSP
Authors Pu Wang, Hongbin Li, Igor Djurovic, Jianyu Yang
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