| In ballistic missile design of each phase, the need for different precision design and simulation of trajectory. At the same time, different kinds of missile simulation model is different. Ballistic missile trajectory design and simulation is a ballistic missile is an important content of the overall design, throughout all phases of ballistic missiles. The same gesture of ballistic missile chooses different, can have different flight performance. For the correct use and fully missile technology, need to carefully designed trajectory. In order to get accurate simulation results, the design for specific issues need to use special software.In this paper, a need to ballistic trajectory simulation software design, write to achieve different types of missile launch in different ways in different degrees, of ef ficient digital simulation. Therefore, this research mainly in the following aspects:1) In the ideal environment for establishment of trajectory simulation modules, including coordinate conversion module, gravity module, standard atmospheric module, flight program modules, engine modules etc. Given a ballistic missile active period of motion equation for freedom, the equation of motion and elliptic equations of motion segment. Analysis of gravity and additional force on the influence factors such as range.2) Discussed with parameter selection method to solve the problem of trajectory simulation method. Solving ballistic missile trajectory design elevation Angle is presented, the procedure of the method of engineering program design elevation Angle. Through the choice of several special pitching Angle program, so the dynamic solution trajectory problem into the parameter selection problem. According to the target of ballistic missile flight trajectory, and many constraints, established mathematical and simulation model.3)Program, to extract from the input text search, and make useful data become more effective and reliable program. Friendly This is helpful for ballistic design and simulation software calls the other software modification parameter.Finally, combined with a concrete example of the use of software are briefly introduced, and verifies the software reliability. |