| A Study on the Technique of Observing Interplanetary Scintillation with Simultaneous Dual-Frequency Measurements |
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| 作者姓名： | Xi-Zhen Zhang |
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| 作者单位： | Xi-Zhen Zhang National Astronomical Observatories，Chinese Academy of Sciences，Beijing 100012; |
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| 基金项目： | Acknowledgements The author thanks Senior engineer Piao Tingyi and Prof. Zhang Hongbo, for their help on the interference monitoring and providing Figure 14 of the present paper. |
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| 摘 要： | Ground-based observation of Interplanetary Scintillation(IPS)is an important ap- proach of monitoring solar wind speed.We describe both the principle and method of ob- serving the solar wind speed by using the normalized cross-spectrum of simultaneous dual- frequency IPS measurement.The effects of the solar wind properties and the angular size of the scintillation source on the measurement of solar wind speed are investigated by numerical analysis.We carry out a comparison of this method with the traditional single station-single frequency method.We outline a new IPS observation system using this method now under construction at the National Astronomical Observatories,CAS(NAOC).
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| 关 键 词： | interplanetary scintillation—method—instrument—telescope |
| 修稿时间： | 2006-10-08 |
A Study on the Technique of Observing Interplanetary Scintillation with Simultaneous Dual-Frequency Measurements |
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| Xi-Zhen Zhang.A Study on the Technique of Observing Interplanetary Scintillation with Simultaneous Dual-Frequency Measurements[J].Chinese Journal of Astronomy and Astrophysics,2007,7(5):712-720. |
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| Authors: | Xi-Zhen Zhang |
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| Abstract: | Ground-based observation of Interplanetary Scintillation(IPS)is an important ap- proach of monitoring solar wind speed.We describe both the principle and method of ob- serving the solar wind speed by using the normalized cross-spectrum of simultaneous dual- frequency IPS measurement.The effects of the solar wind properties and the angular size of the scintillation source on the measurement of solar wind speed are investigated by numerical analysis.We carry out a comparison of this method with the traditional single station-single frequency method.We outline a new IPS observation system using this method now under construction at the National Astronomical Observatories,CAS(NAOC). |
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| Keywords: | interplanetary scintillation - method - instrument - telescope |
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