| 天文观测定位的直接计算方法及船位误差的最优分配 |
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| 引用本文： | 杨晓东,赵琳.天文观测定位的直接计算方法及船位误差的最优分配[J].船舶工程,2001(6):49-51. |
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| 作者姓名： | 杨晓东 赵琳 |
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| 作者单位： | 哈尔滨工程大学 |
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| 摘 要： | 该文根据天文定位计算方法原理，提出了只利用天体观测高度计算天文观测船位的直接算法，又从误差概率分析的角度出发，给出了利用直接算法的求解多天体观测定位误差的最优分配原则。
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| 关 键 词： | 天文定位 计算方法 船位误差 最优分配原则 天体观测 |
Direct Reckoning from Astronomical Observation and Optimal Weight Distribution Principle in Ship Position Accuracy Analysis |
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| Yang,Xiaodong,Zhao,Lin.Direct Reckoning from Astronomical Observation and Optimal Weight Distribution Principle in Ship Position Accuracy Analysis[J].Ship Engineering,2001(6):49-51. |
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| Authors: | Yang Xiaodong Zhao Lin |
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| Institution: | Yang Xiaodong Zhao Lin |
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| Abstract: | This article presents a direct reckoning method for determining latitude and longitude of the observer from observating celestial bodies,and gives the derivations according to the principle of probability.No assumed altitudes of celestial bodies are needed any more.There fore the methods mentioned in the paper could give the results more accurate than that of altitude difference.Also the paper presents the method of optimal weight distribution principle in accuracy analysis. |
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| Keywords: | Celestial navigational position Longitude Latitude |
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