| 捷联惯导系统的可观测性和可观测度研究 |
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| 引用本文： | 程向红,万德钧,仲巡.捷联惯导系统的可观测性和可观测度研究[J].东南大学学报(自然科学版),1997(6). |
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| 作者姓名： | 程向红 万德钧 仲巡 |
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| 作者单位： | 东南大学仪器科学与工程系 |
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| 基金项目： | 国防科工委九五重点预研项目资助 |
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| 摘 要： | 可观测性和可观测度分析是确定动态系统卡尔曼滤波效果的重要环节．本文首次提出了一种时变动态系统可观测性矩阵的奇异值分解分析方法，应用于捷联惯导系统初始对准过程中系统状态的可观测度分析取得显著效果，该方法为初始对准中载体最佳机动方案选择提供了依据．计算机仿真结果表明了该方法的有效性．
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| 关 键 词： | 捷联惯导 奇异值分解 可观测度 初始对准 |
Study on Observability and Its Degree of Strapdown Inertial Navigation System |
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| Cheng Xianghong,Wan Dejun,Zhong Xun.Study on Observability and Its Degree of Strapdown Inertial Navigation System[J].Journal of Southeast University(Natural Science Edition),1997(6). |
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| Authors: | Cheng Xianghong Wan Dejun Zhong Xun |
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| Abstract: | Observability and degree of observability analysis of a dynamic system is an essential procedure to determine the efficiency of a Kalman filter designed to estimate the state of that system. A singular value decomposition method of observability matrix of a dynamic system is proposed.And the good effect is achieved for analyzing degree of observability of strapdown inertial navigation systems (SINS) in initial alignment stage. The choice of optimal maneuvers trajectory of the carrier can be determined in initial alignment stage for the best efficiency of Kalman filters by this method. The computer simulation results validate the efficiency of this analysis method. |
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| Keywords: | strapdown inertial navigation system singular value decomposition degree of observability initial alignment |
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