Device for receiving satellite signals including a phase loop with delay compensation
US8160123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jan 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/29
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described is a device for receiving radio-navigation signals by satellite, said received signals being transmitted at a carrier frequency. The device includes at least means for generating a local signal at a local frequency and a tracking device including a feedback loop called carrier loop for phase-locking the local frequency on the carrier frequency. The loop includes a hardware portion and a software portion. The software portion performs the functions of discrimination of the phase of the correlated signal and filtering of said phase. The software portion also includes correlation functions mainly dependent on the linear variation coefficients between the local phases φlocal delivered after each basic computation cycle. The device makes it possible to increase the loop band and the dynamic stability without changing the pre-detection band and the workload of the software.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.