| 基于笛卡尔坐标的卫星地影模型解析 |
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| 引用本文： | 丁剑,瞿锋,卫志斌,李谦.基于笛卡尔坐标的卫星地影模型解析[J].测绘科学,2010,35(1):39-40,43. |
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| 作者姓名： | 丁剑 瞿锋 卫志斌 李谦 |
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| 作者单位： | 中国测绘科学研究院,北京,100039;中国测绘科学研究院,北京,100039;中国测绘科学研究院,北京,100039;中国测绘科学研究院,北京,100039 |
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| 基金项目： | 国家测绘局基础测绘项目;;中国测绘科学研究院基本科研业务费;;国家科技部科技基础性工作专项“地球物理观测资料深度加工及数字化表达”项目 |
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| 摘 要： | 卫星地影的精确计算对于卫星的电源设计、定轨和定姿等方面具有重要意义。本文通过基于地心的笛卡尔坐标系,从向量的角度描述了日、地、卫之间的几何关系,针对不同轨道高度的卫星分别利用圆柱形模型和圆锥形模型对其进出地影的时间和位置进行了解算和分析,同时给出了圆锥形模型的计算程序。
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| 关 键 词： | 笛卡尔坐标 卫星地影 圆柱形模型 圆锥形模型 |
Calculating and analysis of satellite umbra based on Cartesian coordinate |
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| DING Jian,QU Feng,WEI Zhi-bing,LI Qian.Calculating and analysis of satellite umbra based on Cartesian coordinate[J].Science of Surveying and Mapping,2010,35(1):39-40,43. |
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| Authors: | DING Jian QU Feng WEI Zhi-bing LI Qian |
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| Institution: | Chinese Academy of Surveying and Mapping;Beijing 100039;China |
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| Abstract: | Precise calculation of satellite umbra is very important in power design,orbit estimating and positioning of satellite in orbit and so on.The paper builds Cartesian co-ordinates based on earth center,and describes the geometric relation of the sun,the earth and satellite from vector.And then,it calculates different orbit height satellites entry and exit positions and times trough umbra using cylindrical and conic projection models.Finally,the differences of results are analyzed. |
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| Keywords: | Cartesian co-ordinates satellite umbra cylindrical model conic model |
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