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Modulated Malvar–Wilson Bases

✍ Scribed by R.R. Coifman; G. Matviyenko; Y. Meyer

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
111 KB
Volume
4
Category
Article
ISSN
1063-5203

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✦ Synopsis

New orthonormal bases of improved time frequency atoms are constructed. These atoms are similar to R. Baraniuk's "chirplets." These new bases are used to unfold frequency modulated signals in the time frequency plane. The selection of the "best basis" amounts to finding an optimal covering with Heisenberg boxes with arbitrary eccentricities and orientations. This analysis is as sharp as the one provided by the Wigner transform.

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