Real time passive threat positioning system

Details Real time passive threat positioning system Real time passive threat positioning system

1992-11-17

1995-04-11

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radar ew

342189, 342 15, G01S 736, G01S 738, H04K 300

Patent

active

054062861

ABSTRACT:
A data correlated real time passive threat positioning system uses parallel estimated navigation filters. A threat data correlation process accepts radar warning receiver track file data and generates correlated threat data. A threat data management system and a raw threat positioning system accepts aircraft heading and angle of arrival of the threat to generate a threat status indicator and a threat position measurement. Navigation filtering management apparatus accepts the threat status indicators and provide position filter controls. Parallel estimation navigation filters use the position filter control and the threat of position measurements to generate estimated threat positions for a number of threats. The estimated threat positions are updated and threat situation awareness is presented to the pilot in real-time. Elevation extraction apparatus uses a terrain data base and the threat estimated position to predict the elevation of the threat. Threat data including latitude, longitude and elevation is provided to other systems.

REFERENCES:
patent: 3665464 (1972-05-01), Meilander
patent: 4700191 (1987-10-01), Manor
patent: 4891648 (1990-01-01), Jehle et al.
patent: 5063385 (1991-11-01), Caschera
patent: 5122801 (1992-06-01), Hughes
patent: 5128679 (1992-07-01), Moffat
patent: 5287110 (1994-02-01), Tran

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