Research Of Interception Of Maneuvering Target Based On The Space-based Platform

Along with aerospace science and technology’s to build up in military realmposition, it is necessary for orbital control and orbital determination to meet theday by day aerospace mission reqirements.The applications of small satellitesbased on space-based platform for the incubate and intercept make a new requestto the traditional orbit control and orbit determination technique. Based on thesereqirements,this paper improved the methods on the requirements emphasis onthe single-satellite measurement and intercept mission.Traditional space satellite orbit determination aims at cooperation target,andthe tracking needs stereoscopic scanning for the mission. This method not onlyrequests the information exchanges,but also Limited by the monitor equipmentsin the ground. If the satellte is not a cooperate target and target flight districtoutrun the groud system monitor scope,the effect for tracking will be limited. Inthis paper, the method relied on sigle-sensor tracking used the algorithm based onbearing-only measurement. Through the analysis of the observability oftracking,the limited maneuver has been put forward to the target tracking.Becausetraditional Kalman filter algorithm doesn’t adapt to the nonlinear system, theparticle filter algorithm has been corrected for the tracking. The algorithm istested by simulation data and the results show that the algorithm is effective.Traditonal method for orbit control deals with the problems by optimizationbased on orbit geometry characteristics.The impulse-thrust had been applied tothis control method. But along with the restiction of thrust and fuel for the smallsatellite,finit-thrust has more advantages for tracking and interception. In thispaper,the trajectory for tracking and interception has been separated to twosegments. For the long-distance trajectory,the method of nonlinear programmingand genetic-simulated annealing algorithm had have been used for theoptimization of the thrust.And the correted feedback control algorithm has beenused to the terminal guidance.And the effect of interception has been analysisedconsidering the positions of thrust engines.