Veena, S and Narasimhan, SV (2003) Performance of a Laguerre escalator based active noise control in a nonstationary environment. In: IEEE Region 10 Annual International Conference (TENCON), 15-17 Oct 2003, Bangalore, India.Full text not available from this repository.
An active noise control (ANC) system that exploits the orthogonalization of the nonstationary (NS) narrowband noise field, both for the main path identification and the noise canceller (NC) for the error path identification, is proposed. This is achieved by a joint Escalator lattice (EL) structure, which uses a common Laguerre Escalator filter and different regression filters for the main path identification and for NC for error path identification. Since the escalator lattice structure orthogonalizes NS input better than the regular lattice (RL), the ANC based on the former has a better convergence speed and residual error than the later. Further, the computational load of EL is reduced significantly by using the Laguerre structure.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Noise control;Laguerre escalator;Escalator lattice|
|Subjects:||AERONAUTICS > Aerodynamics|
|Division/Department:||Aerospace Electronics and Controls Division, Aerospace Electronics and Controls Division|
|Depositing User:||M/S ICAST NAL|
|Date Deposited:||23 Mar 2007|
|Last Modified:||24 May 2010 09:55|
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