On Attitude Design And Simulation Of Rocket With GPS Navigation System

For rocket becomes an important weapon of long-distance attack, The development of guidance test and control technology has been attached much importance by countries all over the world. In order to improve the precision of design and the reliability of using,the test and examination of performance indexes of rockets cannot be abandoned during the whole process of research,production and use. Thus, the test of functional and the research of ability play an important role in the whole life circle of a rocket. Simulation technology live in a more key place of the research of weapons.In order to acquire a high reliability, there must be plan a good programming for the build of simulation system and pay more attention with system characteristic of the design, how to do increase the reliability but under a low price.To speed up the development progress of navigation system controller Missile, a Missile Simulation System GPS Receiver is developed based on Matlab / Simulink in this paper. For the GPS to provide the projectile in flight simulator flight data through the establishment of missile in flight particle trajectory model, the reliability is confirmed. The content of this paper is as follows:1. The background, goal and test are introduced.2. Analysis of projectile under certain assumptions and external conditions in the equations of motion under the influence of outside according to theoretical equation of particle motion outside the ballistic is finished. a ballistic trajectory is solved using a mathematical model established by simulink.3. GPS navigation systems and describes the basic working principle is introduced. the concept of GPS receiver simulator is output according to the navigation message.A GPS receiver signal output module is established In Matlab / Simulink environment, based on GPS receiver output the characteristics of information and And WGS - 84 with a variety of transformation between the coordinate system.4. Simulation platform is build to validate the system and ballistic flight path will be entered into the GPS signal simulator. Test results prove GPS navigation software signal simulator can effectively verify the function, and the desired design requirements is achieved.