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Target tracking enhancement using a Kalman filter in the presence of interference

Elgamel, S.A.E.H. and Soraghan, J.J. (2009) Target tracking enhancement using a Kalman filter in the presence of interference. In: Geoscience and Remote Sensing Symposium, 2009 IEEE International, IGARSS 2009, 2009-07-12 - 2009-07-17.

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In this paper we present a new target tracking enhancement system that uses a Kalman filter in the presence of interference. If the radar (seeker) is affected by different types of interference, this will affect the missile trajectory towards the target and may cause inaccurate tracking. In the new system a six-state Kalman filter is utilized to perform the tracking task and to carry out smoothing to the corrupted trajectory. This also provides good information about the target velocity in three dimensions which is very important information about the target. A three dimensional scenario between target (with high manoeuvre) and missile is used to illustrate the performance of the system in the case when (i) no interference is present and (ii) interference is present. The performance of the filtered trajectory using the Kalman tracker will be assessed for different guidance methods: including (i) proportional navigation (ii) pure pursuit and (iii) constant bearing. The Kalman improvement for the tacking for the three guidance method will be analysed.