Research On The Several Issues In The Process Of Realizing GPS/INS Integrated System

The thesis is mainly concentrated on some problems of GPS/INS integrated navigation system and its applications in the long-distance weapons.GPS/INS integrated system is investigated in three respects. Firstly, the model construction and algorithm realization of GPS/INS integrated navigation system are studied(Chapter 2). Secondly, the method of the reduction on state parameters is described. Two measures are presented to solve the problem of radiation of Kalman filter.The positioning of GPS/INS guided missile is also mentioned. Two models are ?constructed in respond to high and low dynamic conditions respectively,then a modified IMM algorithm is presented. The way to jam GPS is also discussed, and the way to jam GPS/INS integrated system is analyzed(Chapter 3). Thirdly, the positioning with the carrier phase measurements is demonstrated, and the way to confirm the integer ambiguity is presented(Chapter 4).