| With the rapid development of civil aviation industry and the popularization of civil aviation transportation,civil aviation bears an important transportation mission increasingly and it is an important strategic industry for China’s economic and social development.At present,the unbalanced and uncoordinated development of civil aviation industry still exists.The aviation security situation is still grim.The aviation security problem is still the premise and focus of civil aviation work.Under the background of the rapid development of civil aviation,making full use of the existing radio transmission communication,Internet,big data,data visualization and other technologies to establish an accurate,real-time,traceable historical track and intelligent statistical analysis of civil aviation monitoring methods has important significance and value.Wireless communication security is the necessary prerequisite and important guarantee for the safety of civil aviation operation.Radio monitoring of civil aviation is a key and difficult point to ensure the safety of civil aviation operation.Integrating radio monitoring with route monitoring and build a special monitoring system has not been reported publicly in China.In this paper,a civil aviation radio monitoring method based on ADS-B and its distributed system are studied.The main work is as follows:Firstly,the basic methods of receiving ADS-B signals and collecting radio spectrum based on software radio technology are analyzed,and the corresponding experiments are carried out.The process and results of the experiments are given.Then,a single-node civil aviation radio monitoring system is designed and deployed to accumulate experimental data for subsequent research.Secondly,a monitoring system with multiple monitoring nodes is studied.The principle of radio wave transmission and the influence of radio propagation loss on the coverage of monitoring nodes are discussed.Based on theoretical and experimental data,the planning and deployment method of monitoring nodes is given.Thirdly,the overall architecture,monitoring node architecture,signal transmission network principle and cloud processor architecture of the instantiated distributed system based on ADS-B for civil aviation radio monitoring method are elaborated,and the data fusion algorithm of multi-node system is given.Then the operation and maintenance tests of the system software and hardware are carried out,and the monitoring view is displayed and explained.Finally,the method of storage,analysis and application based on historical data of monitoring system is given.Through the research of civil aviation surveillance technology and radio surveillance technology,ADS-B data and spectrum data are interrelated.At the same time,a civil aviation radio surveillance system is developed,which can make the surveillance more timely,accurate and effective. |
