Gridding centralized type aviation interference monitoring system and method thereof

Abstract

The invention discloses a gridding centralized type aviation interference monitoring system and a method thereof. The gridding centralized type aviation interference monitoring system comprises multiple signal monitoring devices, multiple VPN (virtual private network) routers, at least one processing server and at least one monitoring center, wherein each signal monitoring device comprises a receiving antenna, a GPS (global positioning system) antenna and a radio frequency sensor, the receiving antenna is used for receiving radio waves radiated in the air and sending the radio waves to the radio frequency sensor, an output end of the GPS antenna is connected with the radio frequency sensor, and the radio frequency sensor is used for processing signals and sending the signals to the processing server through the corresponding VPN router. In order to enlarge the dynamic range of the radio frequency sensor and improve the receiving sensitivity of the radio frequency sensor, analog radio frequency is converted into digital intermediate frequency with the analog-digital conversion and digital downconversion technologies after mixing, then the digital intermediate frequency is processed and analyzed by an FPGA (field programmable gate array) chip, meanwhile, multichannel switching ports of the antennas and GPS processing modules are added to reduce multipath effects and clock synchronization service of TDOA (time difference of arrival) positioning, and the cost of the radio frequency sensors and the cost of the whole system are reduced effectively.

Description

technical field [0001] The invention relates to a gridded centralized aviation interference monitoring system and a method thereof. Background technique [0002] With the increasing use of radio technology in all walks of life, aviation and airport radio communication channels have been increasingly interfered by other radio signals. These interferences are ubiquitous, and radio broadcasts, cellular telephone systems, and various radio transmitters for different purposes may cause interference and jamming of air traffic radio communication channels. Radio interference also poses a huge threat to the airport's air traffic control system. Lightly, it can cause the aircraft to change its original course or delay the flight and bring huge positive losses, and seriously, it threatens the safety of the aircraft and the lives of the passengers. Crashes caused by jammed radio channels have also been reported in the newspapers from time to time. The importance of "aviation interfe...

AI Technical Summary

Problems solved by technology

[0003] Domestic grid monitoring technology is still in a new stage of development, and the traditional detection system can no longer meet the needs of social development

Traditional monitoring equipment builds a number of radio fixed monitoring stations at long distance intervals, but traditional monitoring methods such as large fixed monitoring stations and small monitoring stations are difficult to quickly complete various accurate monitoring tasks, especially for some key areas that need to be protected are difficult to cover It is more difficult to intercept various weak power signals, sudden interference signals, short-duration signals, etc., so the electromagnetic spectrum monitoring system faces great challenges

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