Simulation Of Target Attracting And Data Fusion Algorithm For Distributed Multi-ship Radar

This paper focuses on the data fusion algorithms, the application scheme of Calgorithm, track correlation algorithm and track fusion algorithm in this topicbackground, and studies how much the layout of distributed effect the overalltracking precision of the system.First of all, considerd that HFSW radar exhibits poor azimuth resolution, highnon-linearity, and significant false alarm rate, the Joint Probablistic DataAssociation (JPDA) with the Unscented Kalman Filter (UKF) is proposed. Assimulation shows, the overall filter performances of the JPDA/UKF algorithmadopted in this paper are better than that of the JPDA with the Extended KalmanFilter (EKF).Second, focusing on the problem of track correlation, this paper presents atrack association based on curve fitting algorithm, which does not appear leakageassociated situation, also not need ambiguity processing, simple in principle, easy toimplement. The simulation results show that the correct correlation rate of thismethod is much higher than that of traditional methods under certain condition.Afterwards, study on current distributed wide used fusion algorithms, such assimple convex combination fusion algorithm, the weight covariance fusionalgorithm, no feedback fusion algorithm. Simulation of the three algorithms showsthat those algorithms performance only has a slightly different for DMS-SWRsystem. Also found that the fusion algorithms can effectively improve the trackingaccuracy of the system.Lastly, research on DMS-SWR system containing2,3,4warships shows thatthe increased fusion number of warships to some extent can improve the trackingaccuracy of the system. There are some influence factors effect on the trackingprecision of DMS-SWR system, which composed of the same precision radars, inthis study: the father distance between the fleet and the target is, the worse thesystem tracking accuracy obtains; the better the degree of position improvementcoused by the formation of the ship moving is, the higher the system trackingprecison obtains.