The Analysis of Instrument Landing System Signal Quality Based on QAR Data

The operational status of the instrument landing system directly affects aircraft landing and airport operational standards. Whose changeable status cannot be determined during the flight inspection period of the ILS. Proposes an innovative manner by analyze the QAR data from the routine flights of domestic airports. In order to improve the accuracy of recorded QAR data, this paper used the integrated track latitude and longitude correction model and the integral sliding track model. The signal in space change trend of the airport instrument landing system was also analyzed, to monitor hen the quality and operation status of the instrument landing system signal.