With the rapid development of Micro Electromechanical System (MEMS), the Micro Inertial Measurement Unit (MIMU) has gradually showed its excellent performance, and the integrated navigation system consisting of MIMU and Global Positioning System (GPS) has become the research focus. Based on the analysis of the development and application of MIMU, the modeling of the miniature integrated navigation system has been analyzed and studied in this dissertation. The main works concentrate on the following aspects:...