Satellite communication ground station interference protection device and method

Abstract

The invention relates to the technical field of interference resistance of wireless communication equipment, and discloses a satellite communication ground station interference protection device, which comprises a sampling antenna array, and is characterized in that the sampling antenna array comprises N sampling antenna units, and N is greater than or equal to 1; the system further comprises N+1 first-stage down-conversion modules, a feed clock module, N+1 second-stage down-conversion modules, N+1 analog-to-digital conversion modules, a digital signal processing module, a digital-to-analog conversion module, an up-conversion module and a local oscillation source module. The invention also discloses a satellite communication ground station interference protection method. The satellite communication ground station interference protection device and the satellite communication ground station interference protection method can be integrated with satellite communication ground station equipment, can cover in all directions, and have smaller circuit size and higher spatial resolution.

Description

technical field [0001] The invention relates to the technical field of satellite communication interference protection, in particular to a satellite communication ground station interference protection device and method. Background technique [0002] Satellite communication is a wireless communication technology that relies on satellite relay to realize long-distance information transmission. Satellite communication is one of the important means of military communication. It is widely used in mobile combat platforms such as ships and aircraft, and is often used for the transmission of data such as tactical instructions, battlefield situation, and audio and video calls. Therefore, ensuring the safety and reliability of satellite communication links is related to the victory or defeat. In actual combat, satellite communications need to be able to resist the electromagnetic interference released by the enemy to ensure the smooth communication link. Therefore, improving the in...

AI Technical Summary

Problems solved by technology

[0007] Second, the versatility of the device hardware and installation scheme is poor: satellite ground stations generally use parabolic antennas, which cannot achieve beamforming

[0008] Third, the access method of the protection device is not flexible enough, that is, the interference protection device needs to be difficult to easily access the Satcom ground station, and meet the above compatibility and universality requirements

[0009] In order to improve the interference protection capability of the satellite ground station, the Chinese patent "Dual-antenna Satellite Communication System Downlink Interference Suppression Method" (application number: 201210551818.3) discloses a dual-antenna downlink interference suppression method, but this method requires the use of downlink The training sequence is used for filter weight estimation, so it cannot be applied to communication systems without training sequences

The Chinese patent "A Method for Eliminating Interference in a Satellite Communication System" (Application No.: CN107872268A) discloses a sidelobe interference elimination method, but with a single antenna unit, multiple interference sources cannot be suppressed, and no specific circuit is disclosed Program

The Chinese patent "Non-cooperative interference suppression device and method for satellite ground stations" (application number: CN107872268A) discloses a design scheme for satellite ground station interference protection devices, but has the following disadvantages: (1) adopts a centralized auxiliary antenna, It is easily blocked by surrounding objects such as satellite antennas, and there is a blind area in airspace coverage (2) Two independent modules are used to process beacon signals and data signals separately, resulting in a large circuit size (3) Traditional linear adaptive beamforming technology is used, there are Limited spatial resolution, poor main lobe anti-interference performance

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