Method and apparatus for nonlinear exponential filtering of signals
US5838599A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1996 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Sep 13, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/042
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention is directed to a method and apparatus for filtering a signal of a control and/or signal processing system in a manner which achieves both rapid tracking of signal transients (e.g., step changes in the signal) and heavy filtering of noise during steady-state operation. In accordance with exemplary embodiments, nonlinear features are combined with a conventional exponential filter to achieve both of these objectives. Exemplary embodiments are easy to use in a control and/or signal process system, and perform in a highly accurate manner. For example, in accordance with exemplary embodiments, a filter is configured with a deadband component which constitutes the sole adjustable component of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.