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On the convergence of real-time active noise control systems
- Source :
-
Signal Processing . May2011, Vol. 91 Issue 5, p1262-1274. 13p. - Publication Year :
- 2011
-
Abstract
- Abstract: Available convergence analyses of adaptive active noise control systems apply to only theoretical cases with broad-band white noise or pure delay secondary paths. In order to investigate convergence behaviors of these systems in more practical conditions, this paper conducts a new convergence analysis for filtered-x LMS-based active noise control systems with band-limited white noise and moving average secondary paths. A linear model for the adaptation process is developed. Based on this model, the upper-bound of the adaptation step-size is derived. Also, the adaptation step-size leading to the fastest convergence rate is derived. In addition to the computer simulation, a fully implemented real time active noise control system is used to verify the validity of the analytical results. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01651684
- Volume :
- 91
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Signal Processing
- Publication Type :
- Academic Journal
- Accession number :
- 57684957
- Full Text :
- https://doi.org/10.1016/j.sigpro.2010.12.012