Synergy decision in the multi-target tracking based on IRST and intermittent-working radar

Abstract It is known that one of the most effective methods to prevent radar from being locked-on by the adverse ESM is to use the electromagnetic covertness. In this paper, a general structure and a new algorithm are proposed to solve such problems as making synergy decision between infrared search and track (IRST) and an intermittent-working radar to reduce the opportunity for the radar being locked-on by the adverse ESM, retrieving target range information after the radar is turned off, and detecting target maneuver. In doing so, we have, firstly, suggested an “angular distance” to confirm the initial tracks of IRST and the radar. Then, we utilize the polynomial system based on the sufficient observations done before the radar is turned off to predict the possible target position values. Next, the predicted values can be combined with the data of the observation from IRST to form a set of discriminants for detecting the target maneuver. And finally, a simulation has been done based on the given scenario and simulation results prove the effectiveness of the algorithm.

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