Abstract
This paper presents the misequalization phenomenon in a narrowband active noise equalizer (ANE) system. The origin and characteristics of such phenomenon are investigated. Analysis shows that the estimation error of secondary path transfer function introduces this undesired phenomenon. Relationship between the estimation error and misequalization is also examined. It can be concluded that, for different gain factor values, importance of phase and amplitude estimation accuracy is different. Simulations based on both theoretical calculation and experiments are conducted to support the analysis.
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