Real time passive threat positioning system

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

G - Physics

01

S

G01S 13/86 (2006.01) G01S 7/02 (2006.01) G01S 7/38 (2006.01) G01S 13/04 (2006.01) G01S 13/72 (2006.01)

Patent

CA 2145185

A data correlated real time passive threat positioning system uses parallel estimated navigation filters (270). A threat data correlation process (204) accepts radar warning receiver track file data (206) and generates correlated threat data (208). A threat data management system (212) and a raw threat positioning system (214) accepts aircraft beading (226) and angle of arrival of the threat (229) to generate a threat status indicator (216) and a threat position measurement (224). Navigation filtering management apparatus (218) accepts the threat status indicators (216) and provide position filter controls (220). Parallel estimation navigation filters (270) use the position filter control (220) and the threat of position measurements (224) to generate estimated threat positions for a number of threats (241, 242, 243, 244, 245). The estimated threat positions (241, 242, 243, 244, 245) are updated and threat situation awareness is presented to the pilot in real-time. Elevation extraction apparatus (256) uses a terrain data base (272) and the threat estimated position (241, 242, 243, 244, 245) to predict the elevation of the threat. Threat data including latitude, longitude and elevation is provided to other systems.

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