ADS-B performance monitoring and potential electromagnetic interference

The integration of unmanned aircraft systems (UAS) into the air traffic management will be very demanding. Surveillance equipments based on Automatic Dependent Surveillance-Broadcast (ADS-B) contribute a significant role for maintaining separations between both UAS and aircraft in order to maintain the requirements of aviation safety and airspace integrity. Performance analysis of ADS-B equipments related to signal quality and potential Electromagnetic/Radio Frequency Interference is very important to mitigate the failure risk in air traffic management. The performance test analysis of ADS-B based surveillance equipments related to the most importance performance parameter namely the continuous reception of messages in terms of message drops and probability of update interval message receptions. Another performance test related to electromagnetic emission of ADS-B based surveillance equipments is conducted in order to mitigate potential RF interferences. It presented testing data analysis from various test setups to acquire update interval times, probability of reception, dropout data interval, and the radiated emission of two ADS-B receivers. If the data is generated from RFA 601, then the update interval is approximately 0.5second and the probability of reception is approximately 99.595% which is above the requirement of EUROCAE. When the data is received from both RFA 601 and an attached antenna, the update interval is approximately 0.8 second and the probability of reception has decreased into 62.582%, which is below the requirement of EUROCAE.(EMS2022)