Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/17585
Title: Design and implementation of computationally efficient digital filters
Authors: YU JIANGHONG
Keywords: digital filter, FIR filter, parallel filter, filter length, frequency-response masking (FRM), frequency grid point allocation scheme
Issue Date: 25-Jan-2007
Source: YU JIANGHONG (2007-01-25). Design and implementation of computationally efficient digital filters. ScholarBank@NUS Repository.
Abstract: In this thesis, a weighted least square (WLS) design method is proposed for the parallel structure filters. Design equations are proposed to estimate the subfilter lengths in a basic parallel filter. A new set of design equations are developed for jointly optimized FRM filters. These equations give accurate estimations of subfilter lengths and the interpolation factor in a jointly optimized FRM filter. Problems are pointed out if the prototype in an FRM filter is even-length. New structures are proposed for the synthesis of FRM filters with even-length prototype filters. With the sequential quadratic programming technique, even-length prototype filters can further reduce the complexity of an FRM. A new design method is proposed to improve design efficiency of jointly optimized FRM filters. This method is based on a dynamic frequency grid point allocation scheme, and saves memory and computing time significantly.
URI: http://scholarbank.nus.edu.sg/handle/10635/17585
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
YuJH.pdf2.71 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

228
checked on Dec 11, 2017

Download(s)

176
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.