Sampling time-frequency localized functions and constructing localized time-frequency frames
2016 ◽
Vol 28
(5)
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pp. 854-876
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Keyword(s):
We study functions whose time-frequency content are concentrated in a compact region in phase space using time-frequency localization operators as a main tool. We obtain approximation inequalities for such functions using a finite linear combination of eigenfunctions of these operators, as well as a local Gabor system covering the region of interest. These would allow the construction of modified time-frequency dictionaries concentrated in the region.
2020 ◽
Vol 18
(06)
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pp. 2050050
2002 ◽
Vol 65
(03)
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pp. 720-732
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Keyword(s):
1988 ◽
Vol 34
(4)
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pp. 605-612
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Keyword(s):
2015 ◽
Vol 82
(1)
◽
pp. 95-117
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Keyword(s):
2006 ◽
Vol 233
(2)
◽
pp. 335-350
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2021 ◽
Vol 12
(1)
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Keyword(s):