Optimal factoring of FIR filters
US9391591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2015 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Feb 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2220/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and system for the design and implementation of an optimally factored filter is presented. Pairs of angle values are organized in pairing candidates and a threshold is defined to indicate an upper bound on the number of pairing candidates. A first pairing candidate is exchanged above the threshold with a second pairing candidate below the threshold and a matrix is generated based on the pairing candidates below the threshold. A lowest predicted total quantization cost between all pairing candidates represented within the matrix is determined and the pairing candidates that result in the lowest predicted total quantization cost are used to determine the coefficients of the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.