Receiver for determining a position on the basis of satellite networks
US6081691A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Apr 14, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/37
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A receiver for determining position based on GPS satellites and GLONASS satellites. The receiver architecture includes a radio reception chain with an antenna, frequency conversion circuits, an analogue/digital converter operating at very high rate for the GLONASS pathway, and a signal processing circuit with several general-use channels capable of receiving both GPS signals and GLONASS signals. This circuit uses a programmable pseudo-random code generator and a phase servocontrol loop which uses a local oscillator to produce a local transposed carrier frequency; this oscillator is controlled in such a way as to be able to impose a start frequency for the acquisition of a satellite signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.