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With the precision-guided weapons in the modern high-tech local war become increasingly prominent, and its guidance and control technology has attracted wide attention. Precision guided weapon system technology, including satellite navigation and positioning technologies (such as GPS, GLONASS, etc.) and SINS (SINS). GPS / SINS integrated navigation system (GPS / SINS) is the most advanced guidance technology, with all-weather, autonomous, is one of the advanced countries are vigorously developing the fourth generation of precision guided weapons in a widely used Key Techniques. Use of GPS / SINS integrated navigation technology, precision weapons and target both the capability and the ability to work around the clock. Even in the case of poor weather, GPS / SINS integrated navigation system navigation still get good results. Therefore, the study and master the GPS / SINS integrated navigation technology is essential.First, the article describes the project background and value;Introduced the development of the GPS,SINS and GPS / SINS integrated navigation system.Second, this article describes the principles of the GPS and SINS, introduced the two navigation systems of their respective strengths and weaknesses, sets out the need for the two combinations..Third, this article discusses the SINS initial alignment and navigation algorithm for calculating the flight path data generation algorithm, and then use MATLAB simulation software, on the sins of the navigation working procedure of the simulation.Finally, as the parameters of INS navigation errors accumulate over time, pure SINS can not meet the long distance navigation requirements. Actually often used in GPS / SINS integrated navigation technology to improve the accuracy and reliability, this paper, Kalman filtering simulation was carried out. Experimental results show that simulation system is reliable, the simulation results to achieve the desired effect.
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