Adaptive Linearly Constrained Minimum Variance Framework for Volumetric Active Noise Control
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912591084781568 |
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| author | Mittal, Manan Corey, Ryan M. Singer, Andrew C. |
| author_facet | Mittal, Manan Corey, Ryan M. Singer, Andrew C. |
| contents | Traditional volumetric noise control typically relies on multipoint error minimization to suppress sound energy across a region, but offers limited flexibility in shaping spatial responses. This paper introduces a time domain formulation for linearly constrained minimum variance active noise control (LCMV ANC) for spatial control filter design. We demonstrate how the LCMV ANC optimization framework allows system designers to prioritize noise reduction at specific spatial locations through strategically defined linear constraints, providing a more flexible alternative to uniformly weighted multi point error minimization. An adaptive algorithm based of filtered X least mean squares (FxLMS) is derived for online adaptation of filter coefficients. Simulation and experimental results validate the proposed method's noise reduction and constraint adherence, demonstrating effective, spatially selective and broadband noise control compared to multipoint volumetric noise control. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_05657 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Adaptive Linearly Constrained Minimum Variance Framework for Volumetric Active Noise Control Mittal, Manan Corey, Ryan M. Singer, Andrew C. Sound Audio and Speech Processing Traditional volumetric noise control typically relies on multipoint error minimization to suppress sound energy across a region, but offers limited flexibility in shaping spatial responses. This paper introduces a time domain formulation for linearly constrained minimum variance active noise control (LCMV ANC) for spatial control filter design. We demonstrate how the LCMV ANC optimization framework allows system designers to prioritize noise reduction at specific spatial locations through strategically defined linear constraints, providing a more flexible alternative to uniformly weighted multi point error minimization. An adaptive algorithm based of filtered X least mean squares (FxLMS) is derived for online adaptation of filter coefficients. Simulation and experimental results validate the proposed method's noise reduction and constraint adherence, demonstrating effective, spatially selective and broadband noise control compared to multipoint volumetric noise control. |
| title | Adaptive Linearly Constrained Minimum Variance Framework for Volumetric Active Noise Control |
| topic | Sound Audio and Speech Processing |
| url | https://arxiv.org/abs/2507.05657 |