Fast implementation of a general L/M rate changer by a filter bank structure

Ling, Wing-Kuen and Tam, Kwong-Shun (2001) Fast implementation of a general L/M rate changer by a filter bank structure. In: International Symposium on Intelligent Multimedia, Video and Speech Processing, May 2001, Hong Kong.

Documents
conference_FB_Transform_LMchanger.pdf
[img]
[Download]
[img]
Preview
PDF
conference_FB_Transform_LMchanger.pdf - Whole Document

83Kb

Abstract

In this paper, we show that an L/M rate changer can be realized as a discrete time SISO (L,M) shift invariant system in form of a two-dimensional kernel function or a filter bank structure. Based on this realization, we can implement an L/M rate changer by a bank of filters with the average number of the coefficients in the filters in each channel is 1/L of the original L/M rate changer. Hence, the system is speed up by L. This helps the designer to design a sharp cutoff discrete time FIR filters in an L/M rate changer for some real time applications in video systems.

Item Type:Conference or Workshop Item (Paper)
Additional Information:In this paper, we show that an L/M rate changer can be realized as a discrete time SISO (L,M) shift invariant system in form of a two-dimensional kernel function or a filter bank structure. Based on this realization, we can implement an L/M rate changer by a bank of filters with the average number of the coefficients in the filters in each channel is 1/L of the original L/M rate changer. Hence, the system is speed up by L. This helps the designer to design a sharp cutoff discrete time FIR filters in an L/M rate changer for some real time applications in video systems.
Keywords:L/M rate changer, kernel function, filter bank structure, sharp cutoff discrete time FIR filters
Subjects:H Engineering > H610 Electronic Engineering
Divisions:College of Science > School of Engineering
ID Code:3112
Deposited By:INVALID USER
Deposited On:02 Aug 2010 15:56
Last Modified:13 Mar 2013 08:43

Repository Staff Only: item control page