Resampling algorithm based on window function
US11201604B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2021 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Mar 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0642
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A resampling method based on window function for flexible sampling rate conversion in broadband frequency measurement devices is described. The resampling algorithm can satisfy the requirements of different sampling rates. The frequency responses of the filter in the resampling model based on the Farrow structure are analyzed, and the design criterion of the filter in resampling model is considered. A fractional delay filter design model based on window function method is described. A fractional delay filter matrix, which is expressed by polynomial form, is constructed. Then the expression related to subfilter coefficients is obtained and subfilter coefficients are solved for by the least square method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.