Fractional time-varying energy distributions of ECG signals
Küçük Resim Yok
Tarih
2006
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
We introduce here fractional Cohen class of time-frequency distributions (FCCTFDs) containing fractional modulations which is kernel of fractional Fourier transform (FFT). The fractional modulation depends on angular parameter ? and can be interpreted as a rotation by an angle ? in time-frequency plane. This distribution promotes to track time-variant energy of a biological signals and represents it in time-frequency domain. It uses the fractional ambiguity function (FAF) of signal multiplied by a suitable kernel which is designed for the biological signals generally having multi-non-stationary components. This result improves and generalizes some of the previous time-frequency distributions derived in the literature. © 2006, Taylor & Francis Group, LLC.
Açıklama
Anahtar Kelimeler
Fractional Cohen Distribution; Fractional Fourier Transform; Fractional Modulation; Fractional Time-Frequency Shifts; Weighted Time-Dependent Autocorrelation Function
Kaynak
International Journal of Phytoremediation
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
85
Sayı
5
