Seven-array element anti-interference Beidou satellite navigation system

A Beidou satellite and navigation system technology, applied in the navigation field, can solve the problem of weak anti-interference ability of the guidance system, and achieve the effects of avoiding device saturation and channel blockage, reducing the number of changes, and improving the anti-interference ability.

Pending Publication Date: 2019-12-24
北京国科导通科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a seven-element anti-interference Beidou satellite navigation system to solve the problem of weak anti-interference ability of the existing guidance system

Method used

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  • Seven-array element anti-interference Beidou satellite navigation system
  • Seven-array element anti-interference Beidou satellite navigation system
  • Seven-array element anti-interference Beidou satellite navigation system

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Embodiment

[0068] The seven-array element anti-jamming Beidou satellite navigation system of the present embodiment includes an antenna array and a satellite signal receiver; the satellite signal receiver includes a receiver housing 6, and the upper and lower ends of the receiver housing 6 are clamped on the receiver respectively. The cover plate 8 and the lower cover plate 5 of the receiver; the anti-interference unit 7, the receiver unit 4 and the power supply unit 3 are clamped in the receiver housing 6; the radio frequency is screwed into the side wall of the receiver housing 6 The connector 1 is fixed with a radio frequency connection line 2 at one end of the radio frequency connector 1 protruding into the receiver housing 6; a navigation calculation module and a clock management module are fixed in the receiver housing 6;

[0069] The antenna array includes a mounting frame, and a local oscillator module and a power module are fixed in the middle of the lower part of the mounting fr...

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Abstract

The invention discloses a seven-array element anti-interference Beidou satellite navigation system. The system comprises an antenna array and a satellite signal receiver. The satellite signal receivercomprises a receiver shell, and a receiver upper cover plate and a receiver lower cover plate which are clamped at the upper end and the lower end of the receiver shell. An anti-interference unit, areceiver unit and a power unit are clamped in the receiver shell. A radio frequency connector is in threaded connection within the side wall of the receiver shell. A radio frequency connection line isfixed at one end of the radio frequency connector. A navigation calculation module and a clock management module are fixed in the receiver shell. The antenna array comprises a mounting frame. A localoscillator module and a power module are fixed at the middle position of the lower part of the mounting frame. A radio frequency channel circuit is fixed at the lower part of the mounting frame. Antennas are fixed at the upper part of the mounting frame. An antenna housing is fixed on the top of the mounting frame. An SMP connector is fixed on the outer wall of the lower part of the mounting frame. The radio frequency channel circuit comprises a GNSS radio frequency module and 7 BD2 radio frequency modules.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to a seven-element anti-interference Beidou satellite navigation system. Background technique [0002] Common anti-jamming technologies based on antenna arrays include adaptive zeroing technology based on spatial filtering, space-time joint adaptive filtering technology, and digital multi-beam technology. [0003] Adaptive nulling technology generally uses a power inversion algorithm to suppress the impact of interference on satellite receivers by forming a spatial null in the direction of interference. The technical algorithm is simple. The technology is mature and was first applied in engineering. The disadvantage of this technology is that the spatial nulls suppress the interference and affect the normal reception of satellite signals in the direction of the nulls, and the number of anti-interference is limited by the number of array elements, and the maximum number of anti-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/39G01S19/21
CPCG01S19/21G01S19/39
Inventor 曾平华
Owner 北京国科导通科技有限公司
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