Method for the localizing of terrestrial mobile radio from an aircraft
US6714782B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2000 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Feb 23, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/74
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosure relates to methods and devices for the real-time localization of terrestrial transmitters belonging to a TDMA type cellular radiocommunications network. The device comprises an antenna array, a multichannel receiver and a digital processor. The method consists of the interception, from an aircraft, of radioelectric signal and the detection of these signal by the implementation of a multichannel synchronization to determine the various sources of transmission, the simultaneous computation of an elevation angle &Dgr; and an azimuth angle &thgr; to instantaneously determine the direction of arrival of the radioelectric signal from the determined transmission sources and the building of track in the geographical areas in which the transmission sources are located in order to estimate the position of the transmitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.