Signal adaptive method for improved space/spatial-frequency representation of nonstationary two-dimensional signals

Authors:
Veselin N. Ivanović;Srdjan Jovanovski
Affiliations:
Department of Electrical Engineering, University of Montenegro, Podgorica, Montenegro;Department of Electrical Engineering, University of Montenegro, Podgorica, Montenegro
Venue:
SIP'10 Proceedings of the 9th WSEAS international conference on Signal processing
Year:
2010

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Abstract

This paper represents a signal adaptive two-dimensional (2-D) method for space/spatial-frequency (S/SF) signal analysis. The method is capable of taking a variable number of execution steps (the only necessary ones regarding desirable--2-D Wigner distribution-presentation of auto-terms) in different frequency-frequency points during the execution. This ability represents a major advantage of the proposed method which helps optimize the time required for execution and produce an improved, cross-terms-free S/SF signal representation. Additionally, the proposed method improves noisy signal representation.