System and method
US5382957A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1989 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Dec 19, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved system and method for detecting and positively identifying with nhanced IFF techniques an object or target from an interrogator platform where the area outwardly of and about the platform is suitably surveyed for detecting an object and where the platform is on the earth's surface, in the air or space so long as the platform and detected object to be identified are both within the envelope defined by the Global Position System (GPS) or the like. The system for carrying out the method can be generally made up of a GPS receiver, a programmed central processor unit and combined transceiver/antenna means. The GPS receiver of any platform after detecting an object advantageously functions to obtain the platform geoposition. Then by suitable means or by the cooperation of the programmed processor and antenna means obtain the bearing of the detected object. The detected object is then interrogated with an encrypted IFF signal as to the estimated position of the detected object. The signal also includes a region of uncertainty about the estimated position to assure positive object identification. Although the improved system has extensive military applications, it may readily b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.