Passive high accuracy geolocation system and method
US5317323A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1993 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Mar 5, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0218
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for accurately locating a mobile cellular radio includes plural radio receivers, the position of each being precisely known, a satellite-based time source for providing the actual time of arrival of a radio signal at the plural radio receivers, and a device for removing multipath and cochannel interference from the received signals so that actual time of arrival of the radio signal may be determined accurately. The Global Positioning System (GPS) may be used to provide the time signal and to provide the precise location of the plural radio receivers. The system may be used to passively determine the location of the mobile radio and is accurate enough to use with a computer generated map system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.