Cross-Term Suppression in Time Order Distribution for AWGN Signal

  • Waqas Mahmood University of Engineering and Technology, Taxila.
  • Nabeel Ali Khan Foundation University, Islamabad.
  • Noor Muhammad Memon Quaid-e-Awam University of Engineering & Technology, Nawabshah
  • Fayyaz Ahmed Chaudhry COMSATS Institute of Information & Technology, Wah Campus
DOI: https://doi.org/10.22581/muet1982.1702.08

Abstract

A technique of cross-term suppression in WD (Wigner Distribution) for a multi-component signal that is embedded WGN (White Gaussian Noise) is proposed. In this technique, an optimized algorithm is developed for time-varying noisy signal and a CAD (Computer Aided Design) simulator is designed for Numerical simulations of synthetic signal. In proposed technique, signal components are localized in tf (time frequency) plane by STFT (Short Time Fourier Transform). Rectified STFT is computed and Spectral Kurtosis is used to separate a signal components from noise in t-f plane. The t-f plane is segmented and then signal components are filtered out by FFT (Fractional Fourier Transform). Finally, WD (free of cross terms) of isolated signal component is computed to obtain high resolution in t-f plane.

Published
Apr 1, 2017
How to Cite
MAHMOOD, Waqas et al. Cross-Term Suppression in Time Order Distribution for AWGN Signal. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 36, n. 2, p. 299-308, apr. 2017. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/311>. Date accessed: 15 nov. 2024. doi: http://dx.doi.org/10.22581/muet1982.1702.08.
Citation Formats
Issue
Vol 36 No 2 (2017): April Issue
Section
Articles
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License