A scheme of spectrum monitoring and positioning system based on aerial platform

Abstract

Aiming at the problems of difficult layout of monitoring positions, low degree of automation, low accuracy of direction finding and positioning, and many blind areas in the implementation of electromagnetic environment monitoring and direction finding and positioning of important radiation sources, the research on electromagnetic radiation source monitoring and positioning based on UAV platform is carried out. The system architecture is divided into four functional modules: monitoring and positioning, ground presentation, air platform and data transmission, and the module capability requirements are analyzed based on the application scenario. The final system consists of multiple airborne terminals that communicate with the ground through 4G mobile network, and uses TDOA positioning method to locate the ground radiation source. The system has good monitoring and positioning effect, and can provide means support for the automatic and accurate generation of electromagnetic spectrum situation in important areas under some special circumstances.