Active acoustic attenuation system with reduced convergence time
US5022082A · kind A · utility
43Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Jan 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3045
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method is provided for reducing convergence time of an active acoustic attenuation system upon start-up or upon a given sensed parameter change. The weights of the adaptive filter model coefficient weight vector are started at or changed to values which are closer to the converged value than the initial or present nonconverged value is to the converged value. The filter model converges in a shorter time as the weights change and are updated from their starting or changed value to the converged value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.