Abstract
Malvar wavelets (or lapped orthogonal transforms) with symmetric overlaps have been recently studied extensively. In this correspondence, we consider Malvar wavelets with asymmetric overlaps in both continuous-time and discrete-time cases. We present conditions on window functions in continuous-time case so that Malvar wavelets can be constructed from different local bases. However, in discrete-time cases, we show that Malvar wavelets are impossible unless the overlaps are symmetric. Numerical examples are presented to illustrate the theory.
Original language | English |
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Pages (from-to) | 723-728 |
Number of pages | 6 |
Journal | IEEE Transactions on Signal Processing |
Volume | 44 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1996 |
Externally published | Yes |