System and method of eliminating interference on navigation signals by solar radio burst based on auxiliary antenna

Abstract

The invention discloses a system for eliminating interference on navigation signals by solar radio burst based on an auxiliary antenna, which comprises a ground station main antenna, an auxiliary antenna system, more than three filters, more than three controllable phase shifters, a combiner, and a computer, wherein the ground station main antenna and the auxiliary antenna system are respectively connected with the controllable phase shifters through the filters respectively; the output ends of the more than three controllable phase shifters are connected with the input end of the combiner; and the combiner is connected with the computer. The device adopts a scheme of adding the auxiliary antenna system, a zero point can be formed on a combined pattern, the zero point is aligned to the sun direction, the solar radio burst signals are greatly attenuated under effects of the zero point, and influences on the navigation signals by burst signals are thus reduced.

Description

technical field [0001] The invention belongs to the field of satellite navigation measurement and control, relates to a system and a control method for eliminating interference of solar radio bursts to navigation signals based on an auxiliary antenna, and is applicable to the field of early warning solar radio bursts that interfere with navigation and communication. Background technique [0002] The sun is the closest star to the earth. While transmitting light and heat to the earth, its activities also affect human production and life in various aspects, as well as the technological system that human beings are increasingly dependent on. [0003] At present, human beings mainly rely on radio waves for satellite-ground-space communication, and the frequency ranges from a few MHz to tens of GHz. Global satellite navigation and positioning systems (GPS, GLONASS, Beidou, etc.), which are widely used in the world, provide positioning and timing services for ground equipment thro...

AI Technical Summary

Problems solved by technology

[0007] Image 6 It is obvious that during the radio storm, my country's Kunming, Taiwan, Wuhan, Beijing and other GPS stations were obviously out of lock, and the signals of multiple stations and GPS satellites were completely interrupted for up to 6 minutes. , the number of satellites locked by multiple stations is less than 4, making the GPS real-time positioning service completely invalid

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