Research On Track Initiation Data Processing Technology In Multitarget Tracking

Track initiation refers to the process from radar scanning to target signal to establishing the initial moving track of the target.It is the main problem to be solved in multi-target tracking.With the rapid development of modern aerospace technology,the accuracy and real-time requirements of track initiation are becoming higher and higher.However,the existing algorithms are prone to miss tracking and generate a large number of false tracks.Therefore,the research of multi-target track initiation technology has important practical significance in the realization of multi-target accurate tracking.In this paper,the technology of track initiation data processing for multitarget tracking is studied,and for the shortcomings of the existing algorithm,A joint probability data association algorithm based on adaptive correlation gate and a comprehensive track initiation algorithm based on logic are proposed to improve the accuracy and real-time of track initiation.The achievements of this paper mainly include the following aspects:Firstly,an adaptive correlation gate is designed to solve the problem of high probability of false measurement falling into the correlation gate.According to the distribution of the effective measurement in the gate at the current time,the size and center position of the gate can be adjusted in real time,which can effectively increase the accuracy of data association.Then a joint probability data association algorithm based on adaptive correlation gate is proposed to solve the problem that the computation amount of data association algorithm increases exponentially with the increase of the number of targets.The adaptive correlation gate designed in this paper is firstly introduced into this algorithm to reduce the probability of the occurrence of the feasible interconnection events,and then the first three measurement calculations with the highest interconnection probability are selected Effectiveness measurement is used to update the target status.This algorithm can improve the accuracy and real-time of multi-objective data association.At the same time,aiming at the problem of high false track initiation rate,a logic based integrated track initiation algorithm is proposed.The algorithm uses the measurement at the last moment as a reference to determine the track head,effectively reducing a large number of tracks that are not practical,such as tracks from the same track head and the same track from multiple track heads,and then using the full window method to determine the stable track Reduce false track initiation rate and increase correct track initiation rate.Finally,the systemVue platform is used to build the radar multi-target tracking track initiation system,and the algorithm proposed in this paper is simulated and tested based on the simulation system.The results show that the algorithm proposed in this paper can significantly improve the accuracy and real-time performance of the multi-target tracking track initiation compared with the existing algorithm,and achieve the expected results.