NDLI: Quantizer design for non-orthogonal subband coders

Content Provider	IEEE Xplore Digital Library
Author	Gandhi, R. Mitra, S.K.
Copyright Year	2002
Description	Author affiliation: Broadband Comm. Sector, Motorola Inc., San Diego, CA, USA (Gandhi, R.)
Abstract	Our prior results have shown that the optimal quantizer scheme in a non-orthogonal subband coder involves a trellis-based search of the code vectors at the encoder and filtering the quantized subband coefficients with the synthesis filter bank at the decoder. The performance of the optimal quantization scheme can be improved by using code vectors that are designed by taking into account the optimal trellis-based encoding rule. In this paper, we describe an iterative technique for designing the code vectors when the trellis-based encoding rule is used to quantize the subband signals in a non-orthogonal subband coder. For a given training sequence, the design procedure updates the code vectors iteratively, until a local minima is reached. Simulation results indicate that subband coders that use the optimized code vectors yield a higher signal-to-noise (SNR) than those that use the sub-optimal code vectors.
Starting Page	796
Ending Page	800
File Size	353877
Page Count	5
File Format	PDF
ISBN	0780375769
ISSN	10586393
DOI	10.1109/ACSSC.2002.1197288
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filter bank Quantization Finite impulse response filter Neural networks Signal design Mean square error methods Encoding Filtering Iterative decoding Signal synthesis
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in