Research On Multi-sensor Array Target Localization, Tracking And Interception Method Based On Random Finite Set Theory

When the sensor arrays are used to detect,track and intercept the target,the detection and tracking of the target are coupled,and the target tracking and intercept problems are also coupled.Moreover,while the number of targets in the localization area is uncertain,we also need to estimate it.The random finite set theory provides an effective method for the problem of joint detection and tracking,and the problem of target uncertainty.In this paper,the multi-sensor arrays tracking method of the generalized labeled multi-Bernoulli(GLMB)under the framework of labeled random finite set is proposed.The main work of this dissertation includes:1)Locating and tracking problem based on fixed sensor arrays.In the process of the research of this problem,using multiple pairs of sensor arrays that position fixed to obtain the information of time difference of arrival(TDOA)about targets that exist in the localization area.Then,using the obtained TDOA to locate and track the target in real time,a target localization and tracking method based on GLMB filter by using multi-sensor arrays is used to analyze the location and tracking effect of multiple targets in the localization and tracking area.2)Modeling of sensor's movement and analysis of interception probability.In the process of the research of this part,as for the single target in the localization and tracking area,considering the fact that the distance between the target and each sensor is changing in real time during the target's movement,the sensors have viewpoints and distance limitations on the target detection to some extent.We adopt the method based on mobile sensors to locate and track the target in the localization and tracking area.Through the introduction of occupation probability and the ratio between detection area and intercept area,and treat the sum of them as a metrics to select the movement modal of sensors.3)Joint tracking and interception problem of the target.On the basis of previous research,we study the target joint racking and interception problem.The common method is firstly to track the target,and then intercept it.In this paper,we consider the coupling between the target tracking and the interception,which means that the mutual effect between tracking and the interception.The GLMB filter is chosen to deal with the filter problem.The level set method and the Chan-Vese model are usedto describe whether the localization and tracking target is within the fan-shaped interception area that have been set before,so as to analyze the intercepting effect of the target.