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Convention Paper

Removing Distortion Artifacts from Maximum-Length Sequence Impulse-Response Measurements

Authors: Kovitz, Paul S.

AES Convention 97 · Paper 3877 · November 1994

Abstract

The maximum-length sequence (MLS) crosscorrelation technique for measuring impulse responses assumes that the system under test is linear and time invariant. When the system is not linear, the measured result will contain artifacts which look like noise spikes or erroneous reflections. A technique for isolating and removing these artifacts is described and demonstrated with simulated and real impulse-response measurements. An attempt is made to identify the uncertainties in this correction.

Details

Published in
AES Convention 97
AES Convention
97
Paper number
3877
Publication date
November 6, 1994
Session subject
Test and Measurement
Type
Convention Paper