Publications-Detail
Design of IIR Filters for Active Noise Control by Constrained Optimization
- Authors:
- Hilgemann, F. , Fabry, J. , Jax, P.
- Book Title:
- Proceedings of European Signal Processing Conference (EUSIPCO)
- Organization:
- EURASIP
- Pages:
- p.p. 151--155
- Date:
- Aug. 2021
- DOI:
- 10.23919/EUSIPCO54536.2021.9616172
- Language:
- English
Abstract
In the rapidly growing hearables market, active noise control (ANC) is a feature that customers increasingly demand. In this contribution, we present a design procedure for time-invariant infinite impulse response (IIR) feedforward filters for ANC applications. The filter minimizes a perceptually motivated cost function and can be computed using a nonlinear optimization solver. The design procedure yields filters thatrealize a user-defined active attenuation in the presence of constraints regarding stability and filter magnitude response. We verify the presented approach through simulation and real-time measurements for several design examples. Furthermore, we relate the achieved performance to an upper bound and investigate the impact of the constraints on the resulting performanceDownload
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