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Convention Paper

General Volterra and Swept-Sine Diagonal System Estimation and Modeling Performance

Authors: Lambert, Russell H.

AES Convention 137 · Paper 9185 · October 2014

Abstract

Volterra system modeling performance results are given for various scenarios using both fully-determined and under-determined models. Three nonlinear system estimation methods are presented and compared including a novel and efficient Farina-type Hammerstein algorithm. The diagonal-only Hammerstein methods will not model off-diagonal nonlinear energy for general uncorrelated inputs but will model correlated inputs to some degree. The data matrix estimation methods work for generic input signal types. The nonlinear system must be fully determined to yield best results, but the diagonal-only models are more practical for applications having significantly long memory channels.

Details

Published in
AES Convention 137
AES Convention
137
Paper number
9185
Publication date
October 6, 2014
Session subject
Applications in Audio
Affiliation
Harman International, South Jordan, UT, USA (See document for exact affiliation information.)
Type
Convention Paper