Adaptive Window Zero-Crossing-Based Instantaneous Frequency Estimation
نویسندگان
چکیده
منابع مشابه
Adaptive Window Zero-Crossing-Based Instantaneous Frequency Estimation
We address the problem of estimating instantaneous frequency (IF) of a real-valued constant amplitude time-varying sinusoid. Estimation of polynomial IF is formulated using the zero-crossings of the signal. We propose an algorithm to estimate nonpolynomial IF by local approximation using a low-order polynomial, over a short segment of the signal. This involves the choice of window length to min...
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Abstract Recently, the synchrosqueezing transform (SST) was developed as an alternative to the empirical mode decomposition scheme to separate a non-stationary signal with time-varying amplitudes and instantaneous frequencies (IFs) into a superposition of frequency components that each have well-defined IFs. The continuous wavelet transform (CWT)-based SST sharpens the time-frequency representa...
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ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2004
ISSN: 1687-6172,1687-6180
DOI: 10.1155/s111086570440417x