Anti-interference antenna of satellite system

A satellite system and antenna technology, applied in the field of satellite navigation, can solve the problem of high cost

Active Publication Date: 2017-07-28
GUANGZHOU HAIGE COMM GRP INC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Based on this, it is necessary to provide a satelli

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  • Anti-interference antenna of satellite system
  • Anti-interference antenna of satellite system

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Embodiment Construction

[0020] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0021] like figure 1 As shown, the present invention provides an anti-jamming antenna for a satellite system, which may include:

[0022] An antenna array, a plurality of zero-IF demodulation devices, a baseband processing device and a zero-IF modulation device;

[0023] The antenna array includes a plurality of antenna array elements, and each antenna array element is connected to a zero-IF demodulation device respectively, and each zero-IF demodulation device is respectively connected to the zero-IF modulation device through the baseband processing device;

[0024] The antenna array element receives the satellite communication signal transmitted by the satellite communication system, and the zero-IF demodulation device demodulates the satellite communication signal to obtain a baseband demodulation signal;

[0025] The baseband processing device p...

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Abstract

The present invention relates to an anti-interference antenna of a satellite system. The anti-interference antenna comprises an antenna array, a plurality of zero intermediate frequency demodulation devices, a baseband processing device and a zero intermediate frequency modulation device. The antenna array comprises a plurality of antenna array elements, each antenna array element is connected with one zero intermediate frequency demodulation device separately, and each zero intermediate frequency demodulation device is connected with the zero intermediate frequency modulation device via the baseband processing device separately. The antenna arrays elements receive the satellite communication signals emitted by a satellite communication system, the zero intermediate frequency demodulation devices demodulate the satellite communication signals to obtain the baseband demodulation signals, the baseband processing device carries out the amplitude phase correction on the baseband demodulation signals to obtain the amplitude phase correction signals, carries out the DC offset compensation on the amplitude phase correction signals to obtain the compensation signals and carries out the interference inhibition processing on the compensation signals to obtain the anti-interference baseband signals, and the zero intermediate frequency modulation device modulates the anti-interference baseband signals to obtain and output the anti-interference output signals.

Description

technical field [0001] The invention relates to the technical field of satellite navigation, in particular to an anti-jamming antenna for a satellite system. Background technique [0002] The power of the satellite navigation signal itself is small, and the anti-jamming ability of the signal system is weak. In the navigation warfare environment of electronic countermeasures, electromagnetic space interference is severe, and navigation equipment without anti-jamming antennas will fail. Even in normal times, all kinds of unintentional interference will reduce the performance indicators of navigation and positioning equipment. Therefore, equipping anti-jamming smart antennas is a simple and effective means to suppress malicious interference and eliminate unintentional interference. [0003] At present, the anti-interference and anti-antenna signal chain architecture used for satellite navigation and positioning is all in the form of intermediate frequency. After pass or band p...

Claims

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Application Information

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IPC IPC(8): G01S19/21H04B7/185H01Q21/00
CPCG01S19/21H01Q21/00H04B7/18513
Inventor 潘未庄牟传坤王甲池夏效禹叶韬成张亮邹瑜
Owner GUANGZHOU HAIGE COMM GRP INC
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