Abstract
In many practical active noise control (ANC) applications, feedback structure using estimated secondary path to synthesize reference signal is preferred under various conditions. This paper analyzes the convergence behavior of the narrowband feedback ANC systems with imperfect secondary path estimation. Existing approaches do not include the analysis of the reference signal synthesis errors due to its interrelated feedback nature. In this paper, the reconstruction error is modeled using the secondary path estimation error. Using this model, the effects of estimation errors on the convergence of the feedback ANC system is investigated. To further examine the effects of error in the filtered-{\rm x} and filtered-{\rm y} signal paths, these two paths are analyze separately to isolate the effects caused by these paths. Computer simulations are conducted to verify the theoretical analysis presented in the paper.
| Original language | English |
|---|---|
| Article number | 6578122 |
| Pages (from-to) | 2403-2411 |
| Number of pages | 9 |
| Journal | IEEE Transactions on Audio, Speech and Language Processing |
| Volume | 21 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
ASJC Scopus Subject Areas
- Acoustics and Ultrasonics
- Electrical and Electronic Engineering
Keywords
- Active noise control (ANC)
- convergence analysis
- feedback ANC
- filtered-{\rm x} least-mean-square (FXLMS) algorithm
- secondary path estimation