System and global method for geolocation using imprecise distance and anchor position measurements
US11231480B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2017 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Jan 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A global geolocation method and its system for estimating the position of nodes in a network by implementing a step wherein there is minimization of a global criterion representative of all of the inter-node ranging measurements and the coordinates of the anchors, absolute position information on the kth coordinate of the node Mi obtained with an uncertainty σAik. joint estimation is performed of the coordinates of the nodes forming the state vector, by searching for the minimum of the global squared criterion that takes into account all of the available observations, ranging measurements and anchoring measurements, and their respective uncertainties translated by a covariance matrix on the ranging measurements and on the coordinates of the anchors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.