SDR Reception and Analysis of Civil Aviation ADS-B Signals

With the rapid development of social economy and modern technology, people have shown unprecedented concern about the safety needs of civil aviation travel. The ADS-B system has been gradually adopted by more and more countries in the world because of its high positioning accuracy, fast data update, low cost of building stations, and no low-altitude blind spots. This paper uses the self-developed KZ-SDR-ED software radio development platform to design an ADS-B all-digital software receiver, which receives the broadcast signals of multiple civil aircraft within 100km and follows the message format of ADS-B signals. It is decoded to obtain operational parameters such as speed, altitude, latitude and longitude coordinates of the civil aircraft, and the four-dimensional position and navigation trajectory of the aircraft are displayed in real time through an intuitive GUI interface.