An efficient algorithm to extract components of a composite signal

Date
2000
Advisor
Instructor
Source Title
Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, IEEE 2000
Print ISSN
0736-7791
Electronic ISSN
Publisher
IEEE
Volume
Issue
Pages
697 - 700
Language
English
Type
Conference Paper
Journal Title
Journal ISSN
Volume Title
Abstract

An efficient algorithm is proposed to extract components of a composite signal. The proposed approach has two stages of processing in which the time-frequency supports of the individual signal components are identified and then the individual components are estimated by performing a simple time-frequency domain incision on the identified support of the component. The use of a recently proposed time-frequency representation [1] significantly improves the performance of the proposed approach by providing very accurate description on the auto-Wigner terms of the composite signal. Then, simple fractional Fourier domain incision provides reliable estimates for each of the signal components in O(N log N) complexity for a composite signal of duration N.

Course
Other identifiers
Book Title
Keywords
Algorithms, Computational complexity, Computer simulation, Error detection, Fast Fourier transforms, Frequency domain analysis, Probability distributions, Time domain analysis, Auto wigner term, Composite signal, Fractional Fourier transform, Time frequency domain, Signal filtering and prediction
Citation
Published Version (Please cite this version)