System and method for integer-less GNSS positioning
US11340356B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2020 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Nov 22, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/51
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for tracking a state of a GNSS receiver uses a subset of the measurements of satellite signals selected to avoid the need for intermediate integers ambiguity estimate. The system selects the subset of measurements for the state tracking such that each measurement in the selected subset of measurements is formed by a weighted combination of multiple different measurements from the set of measurements. The system uses a probabilistic state estimator that tracks the state of the GNSS receiver using a probabilistic motion model subject to noise and a probabilistic measurement model relating the selected subset of the measurements of satellite signals to the current state of the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.