| 关于电离层反射电波频率变化的问题 |
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| 引用本文： | 龙咸灵,侯杰昌. 关于电离层反射电波频率变化的问题[J]. 地球物理学报,1979,22(04): 387-395, |
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| 作者姓名： | 龙咸灵 侯杰昌 |
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| 作者单位： | 武汉大学空间物理系 |
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| 摘 要： | 一般认为高频无线电波经电离层反射后产生的多普勒频移效应可分为两部分:其中一部分只与反射面的状态有关,这部分称为微分效应;另外一部分与电波所经过的路径上介质的状态有关,这部分称为积分效应。本文分析高频无线电波在电离层中的反射过程,认为不存在微分效应,只存在积分效应,并用这结论分析了实验现象,讨论了用多普勒测量法研究电离层行进式扰动时存在的问题。
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| 关 键 词： | 电离层反射 电波频率 多普勒频移 电波反射 微分效应 积分效应 反射面 折射指数 电子密度 高频无线电波 |
| 收稿时间： | 1979-04-04 |
ON THE FREQUENCY VARIATION OF RADIO WAVES REFLECTED FROM THE IONOSPHERE |
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| Long Xian-ling,Hou Jie-chang. ON THE FREQUENCY VARIATION OF RADIO WAVES REFLECTED FROM THE IONOSPHERE[J]. Chinese Journal of Geophysics (in Chinese),1979,22(04): 387-395, |
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| Authors: | Long Xian-ling Hou Jie-chang |
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| Affiliation: | Department of Space Physics,Wuhan University |
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| Abstract: | According to the general consideration,the effect of ionosphere on the frequency variation of the reflected HF radio waves consists of two parts,the differential effect,which depends only upon the state of the medium at the point of reflection,and the integral effect,which depends upon the states of the media along the whole ray path. In the present paper,a study of the mechanism responsible for both effects is made. The conclusion is that only the intergral effect exists while the differential effect does not. According to this conclusion,some experimental results may be ex-plained. Problems related to the TID's research by means of Doppler measurement have also been discussed. |
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