Indoor testing system of antenna array based interference rejection module of global navigation satellite system (GNSS)

A technology of interference suppression and antenna array, which is applied in the field of global navigation satellite systems, can solve problems that are difficult to achieve, high difficulty, and complex design in ordinary laboratories, and achieve the effect of improving national defense capabilities and promoting development and application
CN103116170BActive Publication Date: 2013-12-18WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV
Publication Date
2013-12-18

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Abstract

The invention discloses an indoor testing system of an antenna array based interference rejection module of a global navigation satellite system (GNSS). The indoor testing system comprises a control unit, a multichannel figure interference signal producing unit, an interference rejection processing unit and an interference rejection performance analyzing unit. The control unit is used for controlling types of intermediate frequency figure interference signals produced by the multichannel figure interference signal producing unit, and the multichannel figure interference signal producing unit is used for producing multi-way intermediate frequency figure interference signals. The interference rejection processing unit is the antenna array based interference rejection module of the GNSS and used for rejecting the multi-way intermediate frequency figure interference signals produced by the multichannel figure interference signal producing unit. The interference rejection performance analyzing unit is used for analyzing interference rejection performance of the interference rejection processing unit. The indoor testing system of the antenna array based interference rejection module of the GNSS can test and analyze all stages of an antenna array based interference rejection algorithm in the GNSS receiver, and the problem that testing of the antenna array based interference rejection algorithm is difficult is solved.
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Description

technical field

[0001] The invention belongs to the field of global navigation satellite systems, in particular to a GNSS indoor test system based on an antenna array interference suppression module. Background technique

[0002] With the vigorous development and widespread application of GNSS (Global Navigation Satellite System), people are paying more and more attention to its vulnerability research. In the military field, jamming and anti-jamming technologies for navigation have been applied to actual weapon systems, and have been demonstrated in some wars (such as the Iraq War and the Kosovo War). Therefore, the interference and suppression technology of GNSS receiving system has become a research hotspot in this field.

[0003] Among various interference suppression techniques, antenna array-based spatial filtering, space-time and space-frequency adaptive processing techniques have become the main research objects in this field because they can suppress various types o...

Claims

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