Improved Alignment Method for a SINS using Two Vector Measurements
The attitude of the strapdown inertial navigation system (SINS) in static base with respect to the Earth can be obtained directly using the TRIAD algorithm given two vector measurements. This is usually called analytic coarse alignment method in which all six outputs from the SINS are used to compute the attitude. In this study, we present a novel analytic alignment method called selective alignment. This method uses only three outputs of the SINS and some limited information from the remaining outputs to calculate the attitude. Simulations and experimental results demonstrate the validity of this method, and the precision of yaw is improved using the selective alignment method compared to the traditional analytic coarse alignment method in the vehicle experiment.
initial alignment analytic alignment self-alignment selective alignment TRIAD SINS
Tan Cai-ming Wang Yu Zhu Xin-hua Su Yan Wei Guo
School of Mechanical Engineering Nanjing University of Science and Technology Nanjing,China College of Opto-electric Science and Engineering National University of Defence Technology Changsha,
国际会议
秦皇岛
英文
1674-1678
2015-09-18（万方平台首次上网日期，不代表论文的发表时间）