Analysis and research on interference and source localization of ADS-B data in Air Traffic Control
In recent years,abnormal data from ADS-B ground stations and airborne equipment caused by GPS signal interference has been common in many parts of the country.The abnormal in-terference of ADS-B data seriously affects the quality of monitoring data in air traffic control auto-mation systems.In order to improve the efficiency of GPS interference source investigation and posi-tioning during signal interference,and reduce the impact of ADS-B signal anomalies on air traffic control,this paper proposes a GPS interference source positioning calculation method based on ADS-B data abnormal changes from the perspective of air traffic control monitoring data quality.This method establishes a quadratic surface equation through the location points of signal abnormal changes,The method of linear dimensionality reduction and iterative least squares is used to achieve rough positioning estimation of GPS interference sources.This method provides a theoreti-cal reference for the rapid positioning of GPS interference sources and has certain theoretical appli-cation value for the detection and positioning of interference sources in large-scale airspace GPS systems in air traffic control.
ADS-B dataGPS interferenceInterference source localizationIterative least squares
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