GPS attitude determination system and method using optimal search space identification for integer cycle ambiguity resolution
US6256583A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 16, 1998 |
| Grant date | Jul 3, 2001 |
| Priority date | — |
| Expiry date | Sep 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/55
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed are an integer cycle ambiguity resolution method, and attitude determining systems and apparatus using the same. In the method of determining a solution to an integer cycle ambiguity, four primary satellites out of a GPS satellite constellation are selected such that a number of false solutions for the integer cycle ambiguity is optimized. Next, a search space is defined such that the probability of rejecting a correct solution for the integer cycle ambiguity is guaranteed-to be below a predetermined value. Next, intervals in the defined search space are searched to determine a solution to the integer cycle ambiguity. Then, attitude is determined as a function of the determined solution to the integer cycle ambiguity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.