Wide area positioning system
US9057606B2 · kind B2 · utility
30Cited by
139References
76Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2011 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Aug 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods compute an estimated altitude of a receiver using atmospheric data, including a pressure measured at a location of the receiver, a temperature measured by at a reference location, and a reference pressure corresponding to the reference location. The reference pressure is based on a pressure measured at the reference location, the temperature measured at the reference location, and an altitude corresponding to the reference location. The receiver receives the reference pressure from a transmitter. The estimated altitude may be used for determining the three-dimensional position of the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.