Universiti Teknologi Malaysia Institutional Repository

Improved windowed cross Wigner-Ville distribution for PSK class signals

Chee, Yen Mei and Sha'ameri, Ahmad Zuri (2012) Improved windowed cross Wigner-Ville distribution for PSK class signals. International Journal of Computer and Electrical Engineering, 4 (4). pp. 567-571. ISSN 1793-8163

Full text not available from this repository.

Abstract

Instantaneous information bearing phase is an important parameters in the analysis of a digitally phase modulated signal. Cross time-frequency distributions (XTFD) have been proposed recently to represent the class of Phase Shift Keying (PSK) signals. However, due to the presence of duplicated terms, the estimation of the instantaneous bearing phase is inaccurate. A fixed lag window width can be used as a kernel but it is insufficient to completely remove the duplicated terms. Here, a new improved windowed cross Wigner-Ville distribution (XWVD) is proposed as a method to obtain a better cross time-frequency representation (XTFR) for binary phase shift keying (BPSK) and quadrature phase shift keying (QPSK) signals. By adaptively adjusting the lag window width, the duplicated terms are removed and an accurate representation of the cross TFR are obtained at low SNR conditions, as low as 3dB.

Item Type:Article
Uncontrolled Keywords:cross time-frequency analysis, cross Wigner-Ville distribution, instantaneous phase, instantaneous information bearing phase
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:30554
Deposited By: Yanti Mohd Shah
Deposited On:02 Mar 2014 01:33
Last Modified:27 Jun 2019 06:08

Repository Staff Only: item control page