Solution to the Problem of Civil Aviation VHF Band Radio Frequency Interference by Using Flight Inspection Aircraft
Lening Wang, Flight Inspection Center of CAAC, China
Location: Regency Ballroom
Date/Time: Tuesday, Apr. 17, 8:30 a.m.
In order to monitor the air radio environment and locate the possible interference source, two calibration aircrafts with the ability of radio frequency interference (RFI) monitoring has been introduced into the Flight Inspection Center of CAAC (CFIC). In recent years, CFIC has carried out a number of VHF monitoring tasks successfully and accumulated certain experience. In order to improve the accuracy of orientation and position of interference sources, the CFIC has made some endeavor to testify the orientation error and the corresponding compensation, which shows very good results.
In this paper, the VHF RFI monitoring system and usually direction finding (DF) method utilized by the CFIC is introduced. The activities and results on the radio interference monitoring are reviewed. Additionally, the error test in Xilinhot airport and compensation is shared in more details. By correcting the error compensation table in the flight inspection system, the practice has showed that the position accuracy of interference source is greatly improved.