Semi-physical simulation of FOG-SINS/Doppler/Pressure Altimeter integrated navigation

The design of autonomous navigation system is a key technology for military planes.Though SINS/Doppler/Pressure altimeter integrated navigation system has been very perfect in theory,there are still many problems that must be solved in practice.This paper gives an analysis and a design of low cost FOG-SINS/Doppler/Pressure altimeter integrated navigation system for airplanes.Meanwhile,vehicle tests on round and almost linear road were made.The test results indicate that this system is effective and can significantly restrain the position error from diverging.Finally,the main factors that affect the designed FOG-SINS/Doppler/Pressure altimeter Integrated Navigation system were introduced based on the problems appeared in practice.