Abstract
An interacting multiple model (IMM) filter with constant velocity and exponentially-correlated acceleration (ECA) models is proposed for tracking maneuvering targets. An IMM filter is implemented separately in each Cartesian coordinate to allow for different model probabilities in each coordinate. For each coordinate, one of two ECA models is designed to track an increasing acceleration while the other ECA model is designed to track a decreasing acceleration. The IMM filter is designed so that the ECA model with increasing acceleration provides transition from the constant velocity model to the ECA model with decreasing acceleration. The ECA model with decreasing acceleration provides transition to the constant velocity model. Simulated tracking results are given for a constant speed target performing a 'S' trajectory maneuver. >
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