Optimization of Multi UAV Collaborative Interference Strategy Based on 3D Vision Blocking and Improved Genetic Algorithm

Abstract

A series of mathematical models, from easy to difficult, have been established to optimize the deployment strategy of smoke screen jamming missiles, in order to obtain the longest time for smoke screen jamming missile projection under the same conditions and achieve maximum shielding of incoming missiles. Based on the positional relationship between various objects, the principle of line of sight obstruction between straight lines and curves is applied to determine the optimal value of various factor masking effects; We separately studied the multi scenario optimization problems of single machine single missile, multi machine single missile, single machine multi missile, multi machine multi missile single interference, and multiple interference, and obtained relevant algorithms to solve the optimal solution; By adjusting the optimization parameters and selecting optimization methods, it can be seen that under a certain adversarial approach, setting reasonable drone flight parameters and the timing of smoke screen jamming can greatly increase the probability of enemy missiles being effectively blocked. This article establishes a mathematical model for the occlusion effect of smoke screen interference missiles based on line of sight obstruction. The detection of the missile's line of sight to the target and the occlusion effect of smoke screen cloud clusters are quantified as the intersection problem of line segments and spheres in geometric space. 18 key points are selected from a real target cylinder to determine its probability of being hit. Whether the missile's line of sight to each key point is occluded by the smoke screen cloud cluster is considered as whether the key point is occluded. The simultaneous occlusion of all key points is used as the basis for determining effective occlusion. Numerical simulation is used to calculate the occlusion state over time with a time step of 0.01 seconds. Finally, when the drone FY1 flies at a speed of 120m/s next to the target and is ordered to throw the interference missile within 1.5 seconds, the occlusion state is obtained. When detonating within s, the effective shielding time of the smoke screen interference bomb on missile M1 is 1.38 seconds (occurring within 8.06-9.44 seconds); Visual analysis shows that although the effective period of smoke clouds is as long as 20 seconds, only about 7% of the time can form effective shielding due to the dynamic changes in spatial geometric relationships.