By Topic

Optimal design of generalized lapped orthogonal transforms: multiobjective optimization techniques and experimental results

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Shimodaira, H. ; Fac. of Inf. & Commun., Bunkyo Univ., Kanagawa, Japan

We explore multiobjective optimization techniques for the design of generalized lapped orthogonal transforms (GenLOTs). The design objectives handled are the coding gain, the stopband attenuation and the DC leakage. As the optimization algorithm, the pattern search method is used and also as the multiobjective optimization method, the weighted linear combination (WLC) and minmax methods are handled. Some techniques and findings to obtain good optima by these methods are presented. The experimental results show the following. The pattern search method with the strategy for selecting the starting point and the method for assigning the frequency slot has a capability to yield good optima. The WLC and minmax methods have a capability to yield various good optima by varying the relative magnitude of each weight. There is a good possibility that the solution by the pattern search method is one of the global optima in some cases.

Published in:

Multimedia Software Engineering, 2003. Proceedings. Fifth International Symposium on

Date of Conference:

10-12 Dec. 2003