Methods, devices and receivers for satellite signal acquisition
US10884135B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2018 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Aug 15, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/27
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method for acquiring satellite signals. The method utilizes the predictability of the first two words of each sub-frame of the navigation message, by controlling the acquisition time of the intermediate frequency data and the PN code, acquiring corresponding intermediate frequency data and PN code from the acquisition time, processing the intermediate frequency data and the PN code to determine whether the satellite signal is acquired, during the acquisition processing and determination process, the navigation message peeling operation is performed using the predictability of the first two words of each sub-frame of the satellite navigation message and PN code, in this way, extending the time of coherent integration is achieved, and thereby improves the acquisition sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.