WILLIAM JAMES WILLIAMS

PROFESSOR

Electrical Engineering and Computer Science

and

Biomedical Engineering





Contact me Research & Demos Publications Biographical Sketch
PhD Students Courses Local Web Links Outside Web Links




Research Specialty: Time Frequency Analysis

What is Time Frequency Analysis?

Time frequency analysis provides a joint time-frequency representation of a signal. Using newly developed methods, one can often separate the components of a signal in ways that are difficult or impossible using time-series or spectral analysis.

RID

The Reduced Interference Distribution or RID results when certain design principles are followed. A large variety of different designs can be achieved, all with the goal of providing high resolution time-frequency representations. All of these representations exhibit many desirable properties such as correct time and frequency marginals, proper time and frequency support, proper instantaneous frequency and group delay characteristics and, most importantly, considerably reduced interference when compared to the well-known Wigner-Ville distribution.



Demonstration



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Graduate Student Research Team (former and present)


Chris McCormack

Pravene Nath

Robert Nickel

Jeffrey O'Neill

Tzu-Hsien Sang

Eugene Zalubas



Courses




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Local Links

 Systems Division
Communications and Signal Processing Laboratory
Department of Electrical Engineering and Computer Science
Department of Biomedical Engineering
College of Engineering
University of Michigan
Ann Arbor, MI

Additional Web Links




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Contact Info.

Prof. William J. Williams
4230 EECS Building
1301 Beal Avenue
Ann Arbor, MI 48109-2122

Phone: (734) 764-8516
FAX: (734) 763-8041
wjw@eecs.umich.edu



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Last Modified by S. K. Yale: 3/31/98