Adaptive Angle Tracking and Correlation for Airborne Direction-Finding.
Felix Pfendtner · Calhoun: The Naval Postgraduate School Institutional Archive (Naval Postgraduate School) · 1971
An airborne direction- finding technique capable of handling multiple emitters was developed. An adaptive gate size was introduced in the track correlations based on co-variance relations of established tracks and observations. Track files were generated based upon the existence of various target parameters; i.e., frequency, pulse repetition frequency,, pulse width and direction-of-arrival. To test the angular resolution capability of the filter, emitters in close proximity to each other with identical electronic characteristics were used in the simulation. Target loca-tions are calculated in a cartesian coordinate system where the sphericity of the earth is taken into account, and with appropriate coordinate transformation computational