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Convention Paper

Tree Based Lookahead Sigma Delta Modulators

Authors: Angus, James A. S.

AES Convention 114 · Paper 5825 · March 2003

Abstract

This paper describes lookahead Sigma-Delta Modulation (SDM) systems based on tree searching. It presents several methods of implementing tree searched SDM. In particular, it looks at ways of making the search more efficient so that significant amounts of lookahead can be achieved. Finally, it compares tree searching to the Viterbi algorithm and demonstrates the computational and implementation advantages tree searching can offer.

Details

Published in
AES Convention 114
AES Convention
114
Paper number
5825
Publication date
March 6, 2003
Session subject
Signal Processing
Affiliation
Acoustics Research Centre, University of Salford, Salford, Greater Manchester, England (See document for exact affiliation information.)
Type
Convention Paper