Enhanced global positioning system Delta-Range processing
US4646096A · kind A · utility
38Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Oct 5, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit is shown which utilizes signals transmitted from global positioning system satellites to create change in phase signals. The change in phase signals are measured over a predetermined time interval, one second, and stored. The stored signals are applied to a Kalman filter and back to the storage unit so that each one second time interval includes the information from all previous time intervals. This accumulated information is referred to as accumulated Delta-Range information which permits a more rapid determination of position by the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.