Autoregressive modeling of the Wigner–Ville distribution based on signal decomposition and modified group delay
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چکیده
منابع مشابه
Improved Wigner-Ville distribution performance by signal decomposition and modified group delay
A new approach has been proposed for improving the performance of the Wigner–Ville distribution. This approach is based on signal decomposition and modified magnitude group delay function. Signal decomposition achieved by perfect reconstruction filter bank reduces significantly the existence of crossterms. The Gibbs ripple effect is due to truncation of the Wigner–Ville distribution kernel. The...
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A new estimator for evolutionary spectrum (ES) based on short time Fourier transform (STFT) and modified group delay function (MGDF) by signal decomposition (SD) is proposed. The STFT due to its built-in averaging, suppresses the cross terms and the MGDF preserves the frequency resolution of the rectangular window with the reduction in the Gibbs ripple. The present work overcomes the magnitude ...
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ژورنال
عنوان ژورنال: Signal Processing
سال: 2004
ISSN: 0165-1684
DOI: 10.1016/j.sigpro.2003.11.003