| GPS信号在极区中层顶PMSE尘埃层的衰减分析 |
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| 引用本文： | 李海龙,吴健,王茂琰,黄际英.GPS信号在极区中层顶PMSE尘埃层的衰减分析[J].电波科学学报,2010,25(2). |
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| 作者姓名： | 李海龙 吴健 王茂琰 黄际英 |
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| 作者单位： | 电子科技大学物理电子学院,四川成都,610054;中国电波传播研究所,电波环境特性及模化技术国家重点实验室,山东青岛,266107;西安电子科技大学理学院,陕西西安,710071 |
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| 基金项目： | 国家自然科学基金资助项目(No.40831062,60971034) |
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| 摘 要： | 极区中层夏季回波(PMSE,Polar Mesosphere Summer Echoes)是通过雷达在高纬当地夏季中层顶附近探测到的异常强大雷达回波,发生PMSE现象的区域属于尘埃等离子体范畴,现在已经在1290 MHz处用雷达观测到PMSE现象。GPS系统卫星的L2频率为1227.60 MHz,容易受到PMSE尘埃层的影响。GPS信号穿越极区中层顶时,其中的尘埃等离子体区域必然对信号产生影响。利用分层媒质方法结合ECT-02实验数据研究GPS系统L2载波信号经过尘埃层的吸收系数和信号的衰减程度,证实PMSE尘埃层能影响GPS通信。
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| 关 键 词： | 全球定位系统 极区中层夏季回波 尘埃等离子体 |
Attenuation analysis of GPS signal through PMSE dusty layer in polar mesopause |
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| LI Hai-long WU Jian WANG Mao-yan HUANG Ji-ying.Attenuation analysis of GPS signal through PMSE dusty layer in polar mesopause[J].Chinese Journal of Radio Science,2010,25(2). |
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| Authors: | LI Hai-long WU Jian WANG Mao-yan HUANG Ji-ying |
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| Institution: | LI Hai-long1 WU Jian2 WANG Mao-yan1 HUANG Ji-ying3(1.School of Physical Electronics,University of Electronic Science , Technology of China,Chengdu Sichuan 610054,China,2.National Key Laboratory of Electromagnetic Environment,China Research Institute of Radiowave Propagation,Qindao Sh,ong 266107,3.School of Science,Xidian University,Xi'an Shaanxi 710071,China) |
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| Abstract: | Polar mesosphere summer echoes(PMSE) are very strong radar echoes from altitudes near the polar summer mesopause,and it has been observed at 1290MHz.The mesopause region occurring PMSE belongs to dusty plasma.L2 carrier frequency of global positioning system(GPS) is 1227.60MHz,within the frequency range of observed PMSE.When the GPS signal traverses in PMSE layer,it must be affected by the dusty plasma.Combining layered media theory and experiment data of ECT702,GPS signals are found to attenuate greatly in... |
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| Keywords: | global positioning system(GPS) polar mesosphere summer echoes(PMSE) dusty plasma |
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