Identifying Aircraft Type Using ADS-B Transponder Phase Information
Automatic Dependent Surveillance - Broadcast (ADS-B) is a transponder system that an aircraft uses to determine its location via Global Positioning System (GPS) and self-report its location in the sky and its identity to air traffic controllers and other aircraft. However, ADS-B is an unencrypted protocol, which makes it vulnerable to spoofing. Adversarial aircrafts or stationary spoofers can overwhelm air traffic control, posing a risk to airspace security. Thus a method to verify and authenticate ADS-B messages is warranted. This task proposes the usage of unique phase information of the transponder signal to flag suspicious ADS-B messages.