Design And Implementation Of 1090MHz Signalanalysis And Statistics Software System

In recent years,the ADS-B system has been used as a new navigation technology by many foreign countries,and the Civil Aviation Administration of China is also vigorously developing and implementing this technology.The ADS-B system uses the 1090ES data link for data communication,which is the same channel used by the secondary radar.In addition,the 1090MHz channel is an open channel,and various types of signals can use this channel,which makes the environment in the channel more complicated,and interference phenomena will occur between different signals,which will reduce the monitoring capability of the system and affect normal operation and stable operation.In order to analyze the occupancy of 1090MHz channel,a 1090MHz signal analysis and statistics software system is designed and implemented.The software is programmed by C++language,and based on Visual Studio platform,the TCP data and UDP packet data received by 1090MHz signal receiver within the channel are classified and analyzed.In the background,SQL Server database and DAT files were used to create a storage system,and all the analyzed data were classified and stored and counted.Using MFC production PC software interface,using the processed data to monitor the channel occupancy in real time,also can call the data stored in the database,to do visualization display throughout the channel utilization,and carries on the analysis comparison of the frame in the channel signal,still can use DAT file stored in the data playback of signal waveform analysis channel in the quality of all kinds of signals.In addition,the MATLAB platform is used to call the UDP message data classified,analyzed and stored in part of the database to decode the specific message type,and the relevant data of various message types is counted and analyzed in detail.Finally to 1090MHz signal analysis and statistical software system test,the test results show that using this method to design and implement of 1090MHz channel can be real-time processing and statistical analysis software system received data,and use the man-machine interactive way specific analysis of the actual usage of channel,achieve the function of 1090MHz channel monitoring,and complete the statistical analysis of various signal data in the channel.