| 地形匹配系统中各项误差的等效噪声分析 |
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| 引用本文： | 彭嘉雄,张天序.地形匹配系统中各项误差的等效噪声分析[J].宇航学报,1988(4). |
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| 作者姓名： | 彭嘉雄 张天序 |
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| 作者单位： | 华中理工大学
(彭嘉雄)，华中理工大学(张天序) |
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| 摘 要： | 本文提出了把航迹、航速和航向误差等效为附加的测量噪声的方法。用两种统计参数估计方法估计了等效测量噪声的均值和标准差。求出了这些数字特征与地形的起伏标准差、粗糙度以及航速、航向误差之间的定量变化关系,为工程设计提供参考和依据。
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| 关 键 词： | 地形匹配制导 制导误差 参数估计 随机逼近 |
THE ANALYSES OF EQUIVALENT NOISES OF VARIOUS ERRORS IN TERRAIN CONTOUR MATCHING SYSTEM |
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| Peng Jiaxiong Zhang Tianxu.THE ANALYSES OF EQUIVALENT NOISES OF VARIOUS ERRORS IN TERRAIN CONTOUR MATCHING SYSTEM[J].Journal of Astronautics,1988(4). |
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| Authors: | Peng Jiaxiong Zhang Tianxu |
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| Institution: | Huazhong University of Science and Technology |
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| Abstract: | This paper proposes a method so that each of the navigation track error, speed error and heading error can be equivalent as an additive measurement noise. The means and standard deviations of equivalent measurement noises are estimated by two statistical methods. The quantitative dependences of these numerical features on the fluctuant standard deviation and roughness of terrain are given, they provide the reference and basis for engineering designing. |
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| Keywords: | Terrain contour matching guidance Guidance error parameter estimation Stochastic approximation |
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