Applied Rearch On Combined Guidance Technology In Rocket Bomb System

This paper has its background of a certain type of guided the rocket bomb system’s research and development, through the study of the theoretical of ins/gps integrated navigation system,digital simulation, and verification of the actual system, we developed a missile-borne ins/gps Integrated Navigation Systems which is used in the guided bombs.Firstly, this paper introduced the development status of the integrated navigation technology at home and abroad, and studied ins/gps Integrated System navigation principles, integrated navigation method. Secondly, based on position,velocity, and then combined with the actual project selection, this paper derived systemsthe equation of state and measurement equations, feedback correction system In order to verify the correctness and applicability of the algorithm, we use C language to program a ins/gps navigation digital simulation system and simulated the work situation of the navigation system of the carrier in different flight status Then we use the navigation computer of DSP+FPGA to build the ins/gps system hardware base for the reality experiment on the vehicle. Subsequently built a half-physical simulation based on dsp onboard computer system and completed the semi-physical simulation of integrated navigation system. Finally, after a number of car experiments and more digital simulation, semi-physical simulation tests vehicle experiment, show that the missile-borne ins/gps Integrated Navigation System have a high positioning accuracy, good stability, which achieved the actual project requirements.The rearch achievement will be used in related projects which adopt ins/gps combined guidance technology of the academy, which lays a sound basis to meet the accuracy index requirement and cost control of bomb system.