| 天文定位中选星系统的建模与仿真 |
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| 引用本文： | 施闻明,杨晓东.天文定位中选星系统的建模与仿真[J].系统仿真学报,2007,19(7):1428-1429,1568. |
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| 作者姓名： | 施闻明 杨晓东 |
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| 作者单位： | 海军潜艇学院,山东青岛,266071 |
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| 摘 要： | 天文导航不可避免地要涉及到一个选星的问题，选星准确与否直接影响天文导航的定位精度。基于模糊逻辑的方法，以天体的星等、高度和方位为主要馈据，给出选星系统的模型；进而利用最小二乘法原理对多天体定位系统的误差进行处理．仿真结果验证了该选星系统是可行的，误差数学模型合理有效，具有一定的实际应用价值。
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| 关 键 词： | 天文定位 模糊逻辑 模糊隶属度 最小二乘法 |
| 文章编号： | 1004-731X（2007）07-1428-02 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006-02-272007-01-11 |
Modeling and Simulation on Star-choosing in Celestial Positioning |
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| SHI Wen-ming,YANG Xiao-dong.Modeling and Simulation on Star-choosing in Celestial Positioning[J].Journal of System Simulation,2007,19(7):1428-1429,1568. |
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| Authors: | SHI Wen-ming YANG Xiao-dong |
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| Institution: | Naval Submarine Academy College, Qingdao 266071, China |
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| Abstract: | The problem of star-choosing is inevitable in celestial navigation, Whether star-choosing is accurate influences the positioning precision of celestial navigation. Based on fuzzy logic method, star-choosing system model was introduced according to star grade, height and azimuth and celestial positioning system error was processed by least square method. Simulation result shows that this star-choosing system is feasible, and error mathematics model is reasonable and effective and the system has certain actual application value. |
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| Keywords: | celestial positioning fuzzy logic fuzzy membership least square method |
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