Based On The Gps Signal Reception And Ballistic Missile-borne The Reckoning Research

Smart ammunition is a type of ammunition that has the capacity to search itself,recognize the target, even to track the target until it was hit and destroyed on the external trajectory. It is between the ordinary ammunition and the missile. In the current stage of development, it mainly includes trajectory correction projectile,sensor detonated projectile and terminal guidance projectile, etc.The current trajectory correction projectile get numerable and discontinuous modified value through the comparison of the target trajectory and the actual ballistic trajectory, then the projectile engine modify the next trajectory according to the value to reduce the hit error. It's the instruction system outside the projectile that finishs the measurement of the target trajectory and the comparison. Then the ground remote control system sends the modified value to the receiver.The development of the miniaturization of GPS receivers and other navigation and guidance system, make it feasible to improve the working process. Assume that the missile-borne processor finished the measurement and the comparison, it will be a kind of automatic positioning and moving high precision projectile.In this paper, GPS measurement system and the end ballistic calculation algorithm are researched based on the existing technology conditions and the application prospect including the GPS system. The complete size data and other performance parameters of the microstrip antenna are got through the design and simulation; as to the research of the receiver department, it's from the software definition and includes the information distribution process and analysis of characteristics of processed sampling data; simulation analysis is taken of three kinds of end ballistic calculation algorithm, and finally the most accurate feasible model is fixed through the comparison of the simulation results.