Object-track closed-form solution in angle space
Thomas R. Blackburn · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1990
Conventional practice in single-sensor passive track is to fit zimuth-elevation object observations with polynomials in the early stages of track initialization. At least three and usually more observations are fitted to quadratic polynomials before they are accepted for testing with a six dimensional model. This paper develops an alternative to these polynomials based on closed-form solutions of the trajectories in angle-space. This paper is applicable when both the sensor and target are in free fall. The approach relies on a flat-earth assumption to achieve the solutions. Experimental comparisons are made with the polynomial fit method.© (1990) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.