Narrowband interference excision device
US7277475B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Apr 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/1036
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A narrowband interference excision method and apparatus. According to one embodiment, a method for narrowband interference excision is disclosed. The method comprising transforming time domain data into a frequency domain vector having a plurality of frequency bins. The method further comprises estimating a plurality of power values corresponding to frequency bins of the frequency domain vector to obtain a current power vector. Then, calculating an average power vector from the current power vector and at least one selected previous power vector. Further, excising selected frequency bins of the frequency domain vector to produce an excised frequency domain vector. Moreover, determining whether to include the average power vector in future average power vector determinations. In another embodiment, a narrowband interference excision apparatus is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.