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Multi-element anti-interference antenna system for Beidou/GPS satellite navigation equipment

A technology of satellite navigation and antenna system, which is applied in the field of satellite navigation and wireless communication, can solve problems such as the influence of Beidou satellite navigation equipment, and achieve the effect of meeting the real-time requirements of the project, reducing computational complexity, and filtering out interference signals

Inactive Publication Date: 2015-03-11
中国人民解放军63961部队 +1
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AI Technical Summary

Problems solved by technology

Due to the complex electromagnetic environment and the continuous development of interference methods, Beidou satellite navigation equipment will be greatly affected

Method used

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  • Multi-element anti-interference antenna system for Beidou/GPS satellite navigation equipment
  • Multi-element anti-interference antenna system for Beidou/GPS satellite navigation equipment
  • Multi-element anti-interference antenna system for Beidou/GPS satellite navigation equipment

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Embodiment Construction

[0018] Such as Figure 1-Figure 7 As shown, the implementation method of the Beidou / GPS satellite navigation equipment multi-element anti-interference antenna of the present invention comprises the following steps:

[0019] (1) The antenna array design is implemented as follows:

[0020] The multi-element anti-jamming antenna adopts microstrip antenna array design internally, which is divided into 4 independent Beidou B3 antennas and a Beidou B1 / GPS L1 antenna. Beidou B3 forms an antenna array in the form of a 2×2 square array, and the Beidou B1 / GPS L1 antenna is placed among the four Beidou B3 antenna elements.

[0021] In order to achieve the miniaturization of the antenna system, the volume of the microstrip antenna needs to be further reduced. For this purpose, a high dielectric constant dielectric substrate is used. The TACONIC CER-10 plate is selected, and the volume of the array element is 35×35×6. At the same time, in order to ensure the anti-interference effect, the...

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Abstract

The invention relates to a multi-element anti-interference antenna system for Beidou / GPS satellite navigation equipment. A multi-element anti-interference antenna internally comprises four independent Beidou B3 antennas which are arranged in a 2*2 matrix mode to form an antenna array, one Beidou B1 / GPSL1 antenna is put in the middle of the Beidou B3 antenna array, signals received by the Beidou B3 antennas are converted into medium frequency signals after low noise amplification and down-conversion processing, the medium frequency signals are inputted to an anti-interference digital processing unit, the space-time joint dimension reduction multi-stage nested Wiener filtering technology is employed by the anti-interference digital processing unit to carry out anti-interference processing on the signals; up-conversion processing on the signals after anti-interference processing is carried out, the signals after up-conversion processing and the Beidou B1 / GPRL1 signals after low noise amplification are combined into one path of radio frequency simulation signals which are taken as output. The system can be applied to time-change interference scenes and can prevent various types of narrow band and wide band oppressive interference in Beidou B3 frequency band. A Beidou / GPS multi-mode way is further employed, and operation reliability of the satellite navigation equipment is guaranteed.

Description

technical field [0001] The invention relates to the field of satellite navigation and wireless communication, in particular to a multi-element anti-jamming antenna system of Beidou / GPS satellite navigation equipment. Background technique [0002] With the gradual improvement of Beidou satellite navigation system, the application prospect of Beidou satellite navigation equipment is more extensive, and its role is gradually highlighted. Due to the complex electromagnetic environment and the continuous development of interference methods, Beidou satellite navigation equipment will be greatly affected. Therefore, it is very necessary to ensure the availability of satellite navigation equipment for the anti-jamming technology research of Beidou satellite navigation equipment. [0003] At present, the anti-jamming technology applied to GPS global satellite navigation equipment in foreign countries is mainly the space-time joint multi-element adaptive filtering technology. This t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/21G01S19/33
CPCG01S19/21G01S19/33
Inventor 时荔蕙任曦明王立兵高宏唐平吴志成牟传坤张亮潘未庄王甲池贾永军
Owner 中国人民解放军63961部队
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