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| 行星际等离子区对火星探测器距离观测量的影响 | |
| 引用本文： | 李杰,胡松杰. 行星际等离子区对火星探测器距离观测量的影响[J]. 海洋测绘, 2010, 30(2): 32-34 |
| 作者姓名： | 李杰 胡松杰 |
| 作者单位： | 解放军信息工程大学,测绘学院,河南,郑州,450052;北京航天飞行控制中心,北京,100094 |
| 摘 要： | 根据Muhleman和Anderson在1981年给出的行星际空间等离子体密度模型,模拟计算了行星际等离子区对8GHz电波的距离延迟与太阳-地球-航天器夹角(SEP)和光路径长度(L)的关系。结果显示,在本文的模拟条件下,距离延迟随SEP和L从几毫米变化到几十米。最后,分别仿真了一条地火转移轨道和环火星轨道,计算了两种情况下行星际等离子区延迟对测站到航天器距离观测量的影响。 |
| 关 键 词： | 行星际等离子区延迟 电子密度模型 距离观测量 误差量级 太阳-地球-探测器夹角 |
Effects of Delay on Range Measurement Due to the Interplanetary Plasma for the Mars Probe |
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| LI Jie,HU Song-jie. Effects of Delay on Range Measurement Due to the Interplanetary Plasma for the Mars Probe[J]. Hydrographic Surveying and Charting, 2010, 30(2): 32-34 | |
| Authors: | LI Jie HU Song-jie |
| Affiliation: | 1.Institute of Surveying and Mapping;Information Engineering University;Zhengzhou;Henan;450052;2.Beijing Aerospace Command and Control Center;Beijing;100094 |
| Abstract: | Based on the plasma density model proposed by Muhleman and Anderson in 1981,this paper simulates the light time delay in the range measurement with a frequency of 8GHz due to the interplanetary plasma.The result shows that the delay varies with the Sun-Earth-Probe angle(SEP) and the length of light path,from a few millimeter to several decameters.The paper also simulates an interplanetary orbit from the Earth to the Mars as well as a Martin probe orbit,and calculates the light time delay in the range measur... |
| Keywords: | range delay interplanetary plasma electron density model range measurement magnitude of error SEP angle |
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