A recursive, real-time, terrain-aided navigation algorithm, AFTI/SITAN, was designed for use on the Advanced Flight Technology Integration (AFTI) F16 aircraft. The algorithm, implemented in a Z8001 microprocessor, can reliably locate the aircraft's position within a 926-m (0.5 nm) CEP circle and accurately estimate its position continuously (3 Hz). The design and execution of the algorithm are described, and simulation results using actual flight test data are presented. A median accuracy of less than 100 m was achieved over gently rolling, forested terrain using cartographic-based digital terrain elevation data.
The AFTI/F16 terrain-aided navigation system
Das AFTI/F16 gelaendegestuetzte Navigations-System
1985
7 Seiten, 10 Bilder, 10 Quellen
Conference paper
English
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