Multifunctional Radio Monitoring and Direction Finding System Based on Manned Aircraft

Abstract

The invention discloses a multifunctional radio monitoring and direction finding system based on a manned craft. The system comprises a signal receiving module which is used for receiving radio signals; a fixed frequency monitoring module which is used for measuring the signal parameters of the radio signals, performing direction finding and positioning on the radio signals and displaying the signal parameters of the radio signals and the intermediate frequency spectrum in real time; a signal scanning module which is used for scanning the radio signals, recording signal background noise, establishing an electromagnetic frequency spectrum background sample and displaying the maximum level value, the minimum level value and the mean level value of the radio signals; and a signal comparison and alarm module which is used for judging that the radio signals are known signals, unknown signals or illegal signals and alarming if the radio signals are the unknown signals or the illegal signals. Radio monitoring and direction finding can be performed in the air so that the monitoring range and the detection accuracy can be enhanced.

Description

technical field [0001] The invention relates to the technical field of radio monitoring and direction finding, in particular to a multifunctional radio monitoring and direction finding system based on a manned aircraft. Background technique [0002] The monitoring and direction finding system is an important monitoring tool for the radio management department to perform tasks such as spectrum management and interference signal investigation. At present, the common forms of equipment include fixed, vehicle-mounted and hand-held. Fixed equipment is usually built on a large iron tower, with limited monitoring range, expensive equipment and high maintenance costs; vehicle-mounted equipment expands the range of movement, but in many The complex urban environment of buildings will reduce the false alarm threshold of monitoring direction finding, and in complex terrain such as mountains and forests, it is difficult for motor vehicles to pass through, and there are monitoring blind ...

AI Technical Summary

Problems solved by technology

At present, the common forms of equipment include fixed, vehicle-mounted and hand-held. Fixed equipment is usually built on a large iron tower, with limited monitoring range, expensive equipment and high maintenance costs; vehicle-mounted equipment expands the range of movement, but in many The complex urban environment of buildings will reduce the false alarm threshold of monitoring direction finding, and in complex terrain such as mountains and forests, it is difficult for motor vehicles to pass through, and there are monitoring blind spots; handheld devices usually have low performance, long time for single monitoring direction finding, and low accuracy , it is more difficult to monitor the burst signal

Moreover, the existing radio monitoring and direction-finding system has a single function, and can only simply measure the azimuth of radio signals, and cannot further analyze radio signals, so it is difficult to meet higher and higher radio monitoring requirements

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