Research on Multi-objective Algorithm of Air Defense Missile Fire Unit

Intercept sorting is by targets recognition and the threat judgment, targets is determined as the intercept object, which not only reflects the target threat degree, but also reflects the degree of emergency for interception target, target interception order can provide a basis for objective optimization, so as to make the necessary preparation for target interception. Through the analysis of the intercept related factors of advantage degree, combining the actual circumstance of attacking target, two targets to be studied for all targets to be killed with the shortest time and the shortest intercept total time. We established the decision-making model for multi-channel anti-aircraft missile fire units, given interception decision algorithm, and considered the complexity of the algorithm, derived model and algorithm is more scientific and reasonable, which will provide ideas for effective interception. Introduction In the traditional command conditions, fire distribution mainly relys on the commanders for decision-making, while the commander can only be analyzed based on past experience; and under the conditions of command automation, the fire distribution assisted decision-making by computer, threat degrees and intercept favorable degree can be accuratly calculated and sorting in a very short time, and in accordance with the appropriate mathematical model to optimize the allocation of firepower and choose the program which can maximize the effectiveness. In fire distribution, the most important thing is to reasonablly intercept air targets, this problem is currently to follow some criteria, but faced with the complexity of the air situation, the target characteristic diversity, corresponding to different interception strategy, Therefore, it should be based on an objective function, establish mathematical model and design or take the appropriate algorithms, in order to reach the optimal intercept effect, thereby increasing the effectiveness of firepower distribution. Target threat evaluation and interception sorting are the key sub-processes in shooting command and control process of air defense missile. With the development of air defense systems, domestic and foreign scholars have been many studies on interception sorting criteria, some criteria even antagonistic, the literature [2] analyzed these cases in detail, the literature [3] pointed out that a reasonable interception order should be based on the actual target situation and the number of air defense weapon system. In this paper, a mathematical model is established ,which discussed multi-channel air defense missile system to intercept targets scheduling problem, research under the premise of killing all targets with the shortest time, make the shortest total time for each channel. Interception opportune factor and condition In the anti-air war, multiple fire units and multiple batches targets should be calculated separately for the favorable extent, in order to obtain a reasonable interception scheme for maximum interception performance. Factors affecting interception favorable degree are the following: the maximum effective interception time, altitude, shortcut route projection relative to each fire unit, flight speed, the order of firepower units were crossing, aerial targets types, and air defense weapon system tactical and technical indicators and other factors. and acording to the target route distance can calculate the maximum effective interception time , the target route