posted on 2017-12-06, 00:00authored byLi Chai, J Zhang, C Zhang, E Mosca
This correspondence presents a simple and effective method for computing the optimal frame bounds of oversampled perfect reconstruction (PR) filter banks (FBs). It first shows that computation of the optimal frame bounds for complex-valued oversampled PR FBs can be formulated as a convex optimization subject to complex-valued linear matrix inequality (LMI) constraints and solved by effective interior-point algorithms. It then deals with discrete-time Weyl-Heisenberg (WH) frames to compute bounds on the WH frames by real-valued LMI optimization. The WH frames are closely related to modulated FBs and have complex coefficients. Four examples are given to illustrate the generality and effectiveness of the proposed method.
Funding
Category 2 - Other Public Sector Grants Category
History
Volume
56
Issue
7
Start Page
3029
End Page
3033
Number of Pages
5
ISSN
1053-587X
Location
Piscataway, United States
Publisher
Institute of Electrical and Electronics Engineers Inc