Obtaining method of ionospheric parameter

Abstract

The invention discloses an obtaining method of an ionospheric parameter. The method comprises the steps of firstly selecting a broadcasting station of which the position is already known as an emitting station; then building a receiving station, and obtaining the position of the receiving station, the frequency of a received signal and the pitching angle information of the received signal; then calculating and obtaining the ground great circle distance from the emitting station to the receiving station; finally utilizing a genetic algorithm to conduct inversion to obtain the ionospheric parameter based on the frequency of the received signal, the pitching angle information of the received signal and the ground great circle distance. According to the obtaining method of the ionospheric parameter, since an existing broadcasting station can be utilized as the emitting station based on the condition that the emitting station is not built, the cost in obtaining the ionospheric parameter is therefore reduced. Besides, since the genetic algorithm is utilized to conduct inversion, a search result of the ionospheric parameter is guaranteed to be a global optimum result, and thus the precision of an inversion result is improved, and the accuracy of obtaining the ionospheric parameter is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method for acquiring ionospheric parameters. Background technique [0002] The ionosphere is an ionized region distributed over 60km above the earth's surface, formed by ionization in the atmosphere due to radiation from the sun's ultraviolet rays and X-rays. Because it can change the propagation speed of radio waves, refract, reflect, scatter and be absorbed, the detection of the ionosphere is of great significance to the development of radio propagation, aerospace and military communications. [0003] At present, the acquisition of ionospheric parameters mostly adopts the international reference ionospheric model. Since the parameters predicted by this model are the average mode of the ionosphere, the real-time status of the ionospheric parameters cannot be reported. Therefore, the current report of ionospheric parameters mostly uses detection Methods, such as vertical...

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the technical problems of high cost and low accuracy in the prior art by providing an ionospheric parameter acquisition method, and realizes the technical effect of reducing the acquisition cost of ionospheric parameters and improving the accuracy of parameter acquisition

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