| LEO卫星轨道误差对无线电掩星反演大气参数的影响 |
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| 引用本文： | 蒋虎,黄珹.LEO卫星轨道误差对无线电掩星反演大气参数的影响[J].空间科学学报,2001,21(3):253-258. |
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| 作者姓名： | 蒋虎 黄珹 |
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| 作者单位： | 中国科学院上海天文台 |
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| 基金项目： | 国家自然科学基金重点项目（19833030），上海市科学技术发展基金项目（JC14012） |
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| 摘 要： | 采用数值方法估计了LEO卫星轨道误差对无线电掩星反演大气参数的影响。并将其应用于1995年10月11日的某次掩星事件的观测资料处理和分析，得到了LEO卫星轨道误差对无线电掩星反演大气参数影响的定量结果。
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| 关 键 词： | LEO卫星 无线电掩星 反演大气参数 轨道误差 定轨精度 气象卫星 |
| 修稿时间： | 2000年5月18日 |
EFFECTS OF LEO'S ORBITAL ERRORS ON THE INVERSED MRAMETERS OF TERRESTRIAL ATMOSPHERE |
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| JIANG Hu HUANG Cheng.EFFECTS OF LEO''''S ORBITAL ERRORS ON THE INVERSED MRAMETERS OF TERRESTRIAL ATMOSPHERE[J].Chinese Journal of Space Science,2001,21(3):253-258. |
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| Authors: | JIANG Hu HUANG Cheng |
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| Abstract: | A numerical method is put forward to describe the effect of LEO's orbital errors on the inverted parameters of terrestrial atmosphere. Quantitative results are presented based on an occultation event on Oct.11, 1995. LEO's orbital errors show some features: temperature inversion precision at higher altitudes depends more on LEO's positional accuracy than that at lower altitudes in radial and transverse components, while it holds true the other other round in the normal component. Pressure inversion precision at higher altitudes depends less on LEO's positional accuracy than that at lower altitudes in normal and transverse components, while it holds true the other way round in the radial component. Inversion parameters at higher altitude are more insensitive to the velocity bias than that at lower altitude. |
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| Keywords: | Low earth orbit satellite Occultation Inversion of atmospheric parameters |
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