INTEGRATED GPS/INS OF PSEUDO-RANGE DELTA-RANGE SEMI-PHYSICAL SIMULATION'S RESEARCH |
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作者姓名: | HUANG Ji-xun WANG Yan-dong FAN Yue-zu |
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作者单位: | Dept.of Automatic Control, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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基金项目: | 新材料领域项目,863-306-ZT04-03-4, |
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摘 要: | In order to further study the performance of tightly integrated navigation system of GPS/INS, a semi-physical simulation of tightly coupled system has been done based on the data gathered from the experiment of integrated system of GPS and INS. The closed-loop Kalman Filter and U-D discompose algorithm have been used. The simulation results associated to four integrated models of pseudo-range, delta-range, pseudo-range and delta-range alternation, and pseudo-range and delta-range synthesis have been provided, and the actual effects of variously integrated models have been analyzed. The results show that the pseudo-range and delta-range synthesis coupled model is the most effective to improve the coupled system performance and the individual delta-range coupled model had better be avoided in application.
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关 键 词: | integrated navigation system global positioning system (GPS) Kalman filter inertial navigation system (INS) |
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