A Probability Prediction Method for Ionospheric Scintillation in Low Latitude Areas of China

A technology of occurrence probability and ionosphere, which is applied in the fields of radar, measurement and control, satellite navigation, and satellite communication, and can solve the problem of not having the ability to expand the application of ionospheric scintillation probability prediction.

Active Publication Date: 2017-10-20
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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Problems solved by technology

[0004] In China, there is only a fixed-site ionospheric scintillation probability forecast model established by researchers such as the Chinese Academy of Sciences using single-station ionospheric scintillation observation data, which does not have the ability to expand the application of ionospheric scintillation probability forecasts in other frequency bands and other regions.

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  • A Probability Prediction Method for Ionospheric Scintillation in Low Latitude Areas of China
  • A Probability Prediction Method for Ionospheric Scintillation in Low Latitude Areas of China
  • A Probability Prediction Method for Ionospheric Scintillation in Low Latitude Areas of China

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[0093] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0094] Such as figure 2 As shown, a method for forecasting the occurrence probability of ionospheric scintillation in low-latitude regions in China provided by the present invention specifically includes the following steps:

[0095] Step S201, the user specifies parameters such as transmitter position, receiver position, time, operating frequency band, and ionospheric scintillation index S4 threshold to obtain forecast values ​​of solar activity index Rz and...

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Abstract

The invention discloses a method for forecasting the occurrence probability of ionospheric scintillation in low-latitude regions of China. The method includes: an ionospheric heterogeneous body strength CkL inversion method based on the ionospheric scintillation index S4, and the solar activity index Rz, the geomagnetic activity index The probability density distribution model of the ionospheric heterogeneous body intensity CkL in China's low-latitude regions with Kp, geographical location, season and time changes, and the calculation method of ionospheric scintillation occurrence probability. The method provided by the invention can calculate the occurrence probability of ionospheric scintillation events under conditions such as specified location, time, solar activity index Rz, geomagnetic activity index Kp, working frequency band, and ionospheric scintillation index S4 threshold according to user requirements.

Description

technical field [0001] The invention relates to the fields of satellite communication, satellite navigation, radar and measurement and control, and is used to realize medium and long-term forecasting of ionospheric scintillation effects in satellite communication / satellite navigation / radar / measurement and control systems, and is used for system margin design, signal system design, and satellite orbit design Provide technical support. Background technique [0002] On the background of the normal electron density of the ionosphere, there are ionosomes with different densities and scales floating, which are called ionosphere inhomogeneous bodies. When the satellite signal propagates in the ionosphere inhomogeneous body, it will cause the change of propagation path and propagation time, which will cause the amplitude, phase and angle of arrival of the signal to fluctuate rapidly, resulting in signal fading, frequency shift, etc., which is called ionosphere flashing. The scinti...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/10
Inventor 张红波赵振维刘玉梅
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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