Abstract
A multi-channel narrowband feedforward Active Noise
Profiling (ANP) system using a modified Filtered-x Least
Mean Squares (FXLMS) algorithm has been developed in a
passenger car to profile the low-frequency noise
components. In practice, the performance of the ANP
system will be affected mainly by the accuracy of the
plant estimate, the convergence speed, and also the
robustness of the ANP algorithm. During the first
experiments, the practical ANP system has already been
proven to some extent to be effective to modify the
periodic noise, specifically the 2nd order engine
harmonic. However, because of the complexity of acoustic
environment inside the car and the frequency dependent
convergence behavior of the algorithm, more work needs to
be focused on the optimization of plant estimate and the
ANP algorithm to improve the performance of the ANP
system
Original language | English |
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Title of host publication | Proceedings of 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 |
Pages | 4816-4823 |
Volume | 6 |
Publication status | Published - 2010 |
MoE publication type | A4 Article in a conference publication |
Event | 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 - Lisbon, Portugal Duration: 13 Jun 2010 → 16 Jun 2010 |
Conference
Conference | 39th International Congress on Noise Control Engineering 2010, INTER-NOISE 2010 |
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Country/Territory | Portugal |
City | Lisbon |
Period | 13/06/10 → 16/06/10 |
Keywords
- Active Noise Profiling
- algorithm implementation
- passenger car
- system development