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Ionospheric total electron content long-term change analysis method

A technology of total electron content, long-term change, applied in the field of ionosphere, to achieve the effect of high precision and accuracy

Active Publication Date: 2020-07-03
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although a lot of research work has been carried out on the short-term change characteristics of the total electron content of the ionosphere, its long-term change trend and impact are still the focus of people in related fields

Method used

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  • Ionospheric total electron content long-term change analysis method
  • Ionospheric total electron content long-term change analysis method
  • Ionospheric total electron content long-term change analysis method

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be pointed out that the described embodiments are only intended to facilitate understanding of the present invention and do not serve as any limitation.

[0024] The present invention proposes a method for analyzing the long-term change of ionospheric total electron content, which fully considers the influence of solar activity, geomagnetic activity and neutral atmospheric composition on the change of ionosphere total electron content, and establishes the relevant ionosphere total electron content The long-term trend model that changes over time can better describe the long-term change trend of the ionospheric total electron content and the differences in the long-term change characteristics of the ionospheric total electron content in different regions of the world.

[0025] like figure 1 Shown, the concrete realization steps of the pr...

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Abstract

The invention relates to an ionospheric total electron content long-term change analysis method. Firstly, the influence of solar activity, geomagnetic activity and neutral atmospheric components is considered, a model of ionospheric total electron content changing with time is established on the basis, then an equation set is established by utilizing ionospheric total electron content long-term observation results obtained by a global observation system, and model coefficients are calculated; and further calculating the correlation between the model value and the observed value by utilizing the long-term total electron content observed value of the ionized layer, and taking the correlation as the evaluation standard of the model precision. And performing model correlation analysis on the long-term observation value of the total electron content of the multi-source ionospheric layer, and judging the action weight of each influence factor on the long-term change of the total electron content of the ionospheric layer. And respectively analyzing different regions in the world, and judging the difference of the total electron content of the ionized layer of each region along with the time change. The method can be used for effectively analyzing the long-term change of the total electron content of the global ionized layer.

Description

technical field [0001] The invention belongs to the field of ionosphere, and in particular relates to a method for analyzing the long-term change of the total electron content of the ionosphere. Background technique [0002] The ionosphere is the upper atmosphere located 60km to 1000km above the earth, and it is an important space strategic resource. The ionosphere is filled with a large number of charged particles and free electrons, which have a certain impact on the radio waves penetrating the earth's atmosphere, and are one of the important sources of ranging errors for satellite navigation signals in the atmosphere. The total electron content of the ionosphere is an important physical quantity reflecting the activity and state of the ionosphere. It is affected by solar activity and the space magnetic field, and will be strongly disturbed during solar storms and geomagnetic storms. The total electron content of the ionosphere can be obtained by inversion of dual-frequen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04
CPCG06Q10/04
Inventor 刘杨宾学恒
Owner BEIHANG UNIV
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