Application of IMM filtering to passive ranging
Samuel S. Blackman, Stacy H. Roszkowski · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
This paper presents an interacting multiple model (IMM) filtering scheme for use in passive ranging with angle-only measurement data. The application is to an air-to-air multiple target tracking environment. The IMM implementation uses the Modified Spherical Coordinates (MSC) method for one of the filter models and a general acceleration model for the other filter. This method, in effect, provides maneuver detections to that range and range rate estimation errors from the MSC filter are minimized and an accurate covariance matrix is maintained to reflect these errors.