Research On Attack Decision-making Technology Of Ground Multi-time-sensitive-targets For UCAV

Due to the gradually complicated battlefield environments and the increasingly diversifiedcombat style, using unmanned aerial vehicles (UAVs) to attack the targets on the ground has becomean important means of a combat. Especially for attacking the time sensitive targets on the ground,UAVs show its incomparable superiority. In the combat of multiple UAVs and many time sensitivetargets, it is important to distribute the ground target to each UAV according to the current situationand it is the key factor of completing the combat mission successfully and efficiently. This dissertationmainly studies attack decision-making algorithms for UAVs attacking the time-sensitive-targets on theground, and evaluates the effectiveness of the weapon system. The main contents are given asfollows:First of all, according to the damage effect of opposing sides’ weapon system against each other,a differential game model of UAVs attacking time-sensitive-targets on the ground is established. Itreal-time and accurately describes the opposing process of opposing sides. The optimal attack strategyis given for opposing sides through calculation and realizes the dynamic attack decision-makingprocess.Secondly, according to the characteristics of the UAVs attacking time sensitive targets on theground, a decision-making model based on online support vector machine (SVM) is built for theUAVs attacking the time sensitive targets. The online support vector machine is used to calculate thethreaten degree of the time sensitive targets. And, the priority of the UAVs to the time sensitive targetsis obtained by calculating the relative position and distance of the UAVs to the time sensitive targetsand value factors. The UAVs attacking the time sensitive targets decision-making is given by theprinciple that the high threaten degree target is attacked firstly and the UAV of high priority to thetarget is attacked. At the same time, the comparison study is presented between the differential gameattack decision-making and the online support vector machine attack decision-making. Theadvantages of the two attack decision-making algorithms are analyzied.Thirdly, the trajectory is simulated for the UAVs attacking the time sensitive targets. And themissile placements are analyzied to calculate the accuracy of the weapon system--Circular ErrorProbability. Attack effectiveness of the weapon system is assessed from the vulnerability of thetime-sensitive-targets on the ground and the damage degree of the mechanism of the weapon system.It shows that the attack decision of the UAVs attacking the time-sensitive-targets on the ground is reasonable.Finally, using VC++platform, the decision-making system of the UAVs attacking the timesensitive targets on the ground is established. And, various functions are realized such as the trajectorysimulation of the UAV attacking the time sensitive target, the accuracy analysis of UAVs attacking thetime sensitive targets system, attack decision-making analysis of the UAVs attacking thetime-sensitive-targets on the ground, damage assessment of the targets, the attack effectivenessassessment of the weapon system, and so on. It gives the trajectory of the UAV attacking thetime-sensitive-target, error analysis of the missile placements, attack decision scheme, damage degreeof the time sensitive targets, and the attack effectiveness assessment of the weapon system under theattack decision scheme. The simulation results further show that the attack decision algorithm iseffective and reasonable.