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Short-term forecast method of ionospheric scintillation in middle and low latitudes

A short-term forecasting, ionospheric technique used in the field of ionospheric physics research

Active Publication Date: 2014-05-28
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0008] In view of the above analysis, the present invention aims to provide a short-term prediction method for ionospheric scintillation in the middle and low latitudes, to solve the problem that the ionospheric scintillation prediction method in the prior art cannot provide accurate short-term predictions of ionospheric scintillation for the middle and low latitude regions of my country. Problems with the Forecast Service

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  • Short-term forecast method of ionospheric scintillation in middle and low latitudes
  • Short-term forecast method of ionospheric scintillation in middle and low latitudes

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Embodiment Construction

[0050] Based on the demand for short-term forecasting of ionospheric scintillation and the current research status, the present invention provides a short-term forecasting method for ionospheric scintillation driven by measured data, which is suitable for middle and low latitude regions in my country.

[0051] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention.

[0052] Such as figure 2 as shown, figure 2 It is a schematic flow chart of the method described in the embodiment of the present invention, which may specifically include the following steps:

[0053] Step 201: filter the measured ionospheric scintillation index; the ionospheric scintillation index S 4 is a set of strings defined as the normalized v...

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Abstract

The invention discloses a short-term prediction method for ionospheric scintillation in middle and low latitude regions, comprising: obtaining the average value of the ionospheric scintillation index after filtering and averaging the measured scintillation indices; The strength and phase of the signal, analyze the ionospheric heterogeneous body characteristic parameters, obtain the current moment ionospheric heterogeneous body distribution state according to the ionospheric heterogeneous body characteristic parameters; according to the current moment ionospheric heterogeneous body distribution state, Using the analyzed characteristic parameters of ionospheric heterogeneity, the distribution of ionospheric heterogeneity in the future time is obtained; according to the distribution status of ionospheric heterogeneity in the future and user information, the ionospheric scintillation on a given link is obtained Intensity; the present invention provides short-term scintillation forecasting services for various spatial information systems in the middle and low latitudes of my country, and can know the impact of ionospheric scintillation that user systems may encounter in real time or in advance according to system parameters and specific use environments.

Description

technical field [0001] The invention relates to the field of ionospheric physics research, in particular to a short-term prediction method for ionospheric scintillation in middle and low latitude regions. Background technique [0002] Such as figure 1 As shown, ionospheric scintillation means that when a radio signal passes through the ionosphere, affected by the inhomogeneity of the ionospheric structure, the amplitude and phase of the signal will produce short-term irregular changes. This phenomenon is called ionospheric scintillation. The effects of ionospheric scintillation will, in mild cases, degrade the performance of ground-to-air radio systems such as satellite communication systems, satellite navigation systems, and radar monitoring systems. [0003] Therefore, the study of ionospheric scintillation phenomena and the development of ionospheric scintillation prediction methods can effectively avoid or slow down the impact of ionospheric scintillation on space infor...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/00
Inventor 甄卫民冯健马宝田陈丽袁亚平余侯方王登亮
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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