Dynamic Matching of Reconstruction and Anti-Aliasing Filters in Adaptive Active Noise Control
Fangjie Zhang,
Yanqin Wu,
Yifan Wang
et al.
Abstract:Constrained by the computing power, adaptive active noise control systems often have a low sampling rate. Therefore, reconstruction filters and anti-aliasing filters with fixed parameters are generally adopted to eliminate the mirror noise and aliasing noise, respectively; however, they may boost the group delay of the system. A dynamic matching method based on dual sampling rates is proposed to dynamically adjust the parameters of the reconstruction and anti-aliasing filters, according to the characteristics … Show more
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