Global Positioning System In The Two-dimensional Trajectory Correction Fuze Applications

The research of this paper belongs to the item of "2-D trajectory correct fuze". To achieve this, the position and the attitude of the fuze flying are the first ones to get. GPS is able to provide high accuracy information about position, speed and time. So this paper investigates the application of GPS in 2-D trajectory correct fuze. After the introduction of the GPS/SINS integration system, the GPS/MR integration system is proposed in this paper. The application approach is designed here.A system based on MCU is designed first. The principle possibility is tested. A kind of system including software and hardware based on DSP is designed, considering the processing of a lot of datas used for navigation and the real-time requirement of the orders used for trajectory correct. To ensure the stable communication between GPS receiver and the DSP, an interface is designed in this paper.The static and dynamic tests of single GPS navigation are taken here. A GPS signal collecting program is designed in this paper based on the VISUAL BASIC 6.0. So it's easy to observe the GPS information and store the datas used for navigation. The Kalman filtering of the datas got in dynamic test is accomplished in MATLAB, it results in good. The whole navigation system designed based on MCU in this paper is tested, it is approved to work well.