Research On Simulation Technology Of Anti Aircraft Carrier Combat Based On Digital Earth

In modern warfare,the aircraft carrier fleet,as an important combat unit in ocean-going combat,is the key target in the battlefield.In order to visually simulate the combat strategy,ballistic planning,breakthrough defense,and attack of missiles against aircraft carriers.the key technologies of visual simulation for anti aircraft carrier operations are studied.A GIS-based scene model and entity models such as missile ships are established,and the flight trajectory of a typical missile is calculated using the missile flight dynamics simulation,and the real-time rendering of the data-driven flight trajectory in the 3D scene is realized;For combat behavior such as interception,attack,damage,etc.The trigger conditions for explosion effects are established based on missile-target intersection and entity collision detection,and particles are used to achieve visual rendering of explosion effects;In order to collect the damage effect,the camera technology is used to realize the image acquisition and return.Finally,based on the domestic digital earth,a visual simulation system for anti aircraft carrier using missile combat that supports large scenes and multiple nodes is developed,and the entire combat process is verified by simulation.The specific research contents are as follows:(1)The overall combat scenarios such as detection,attack,and confrontation during anti aircraft carrier operations using missile are analyzed.the preliminary planning is made for the missile anti aircraft carrier combat process scenarios,the equipment of the red and blue parties,and the combat tasks.Based on the demand analysis of combat visual simulation,the overall scheme,function and simulation process of the anti aircraft carrier combat visual simulation system are designed,and the simulation engine and development tools are selected.(2)For the real-time calculation of the missile flight trajectory,the coordinate system involved in the flight of the missile is analyzed,and mathematical models such as standard atmosphere,aerodynamic calculation,missile flight dynamics and guidance are established.Based on the open source flight simulation engine-JSBSim The parameter configuration of the missile flight dynamics model and the ballistic solution method provide real-time data for the subsequent visual simulation of the missile flight trajectory.(3)Aiming at the key technology of visual simulation,the combat scene is constructed based on GIS information;the real-time data-driven multi-projectile flight trajectory rendering is realized by using UDP data transmission and multi-thread concurrent technology;the simulation of the seeker image detection and backhaul based on the digital earth;the explosion triggering and fire smoke effects in the red-blue confrontation are realized by using the collision detection,missile position,projectile relationship information and particle effects in combination.(4)Finally,based on the Visual Studio development platform and QT development tools,the development,integration and verification of each functional module of the anti aircraft carrier combat visual simulation system were completed,and visual simulations were carried out for typical processes such as red flight,blue interception,and red attack damage.At the same time,it can return a clearer image of the damage effect,which verifies all the functions of the combat visual simulation.The above technical methods and means can provide technical reference for anti aircraft carrier combat visual simulation.