Adaptive noise cancellation of doppler shifted noise signals : a linear framework
Weiss, Stephan and Stewart, Robert (1996) Adaptive noise cancellation of doppler shifted noise signals : a linear framework. In: 8th European Signal Processing Conference, 1996-09-10 - 1996-09-13.
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In this paper we investigate the performance of single channel adaptive noise cancellation techniques for situations where the noise signal received by the two microphones cannot be related by a fixed weight canceller's (linear) digital filter due to Doppler shift on the two signals. A mathematical signal model is produced, which shows that the adaptive filter is in fact required to identify a time-varying system which incorporates Doppler shift, and potential rapid variations in signal power as the Doppler producing source passes the filter microphones. We present theory, simulated performance and real world performance for both the least mean square (LMS) and normalised LMS (NLMS) when operating in a Doppler noise environment.
ORCID iDs
Weiss, Stephan ORCID: https://orcid.org/0000-0002-3486-7206 and Stewart, Robert ORCID: https://orcid.org/0000-0002-7779-8597;-
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Item type: Conference or Workshop Item(Paper) ID code: 32620 Dates: DateEvent1996PublishedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering Department: Faculty of Engineering > Electronic and Electrical Engineering Depositing user: Pure Administrator Date deposited: 22 Aug 2011 08:28 Last modified: 11 Nov 2024 16:30 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/32620