GNSS board, terminal and narrowband interference suppression method
US10557946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2018 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A GNSS board comprises a narrowband interference suppression module comprising an interference suppression pathway to receive an intermediate frequency (IF) signal, a bypass pathway to receive an intermediate frequency signal, an interference control switch, and a data strobe switch, wherein,the interference suppression pathway includes a signal conversion module, an interference detection module and an interference processing module, wherein the signal conversion module converts the intermediate frequency signal from a time domain signal to a frequency domain signal; the interference detection module determines whether there is interference with the frequency domain signal, and in the case of interference, obtains interference frequency information, makes the interference control switch close and the data strobe switch switch from the bypass pathway to the interference suppression pathway; and the interference processing module performs interference suppression processing on the frequency domain signal based on the interference frequency signal to obtain an interference-canceled IF signal output by the data strobe switch; the interference detection module makes the interference co…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.