Development of a Software-defined ADS-B Receiver

Automatic Dependent Surveillance – Broadcast (ADS-B) je sljedeća generacija nadzorne tehnologije u zrakoplovstvu. Svrha mu je odrediti poziciju zrakoplova i automatski odaslati tu informaciju, zajedno s informacijama o visini, brzini i pravcu leta, zemaljskim stanicama i okolnim zrakoplovima. Objašnjen je princip rada sustava, kao i struktura signala koji odašilje sustav. Objašnjene su tehničke karakteristike softverom definiranog prijamnika, te je takav prijamnik korišten u praktičnom dijelu rada za prijam ADS-B signala.Automatic Dependent Surveillance – Broadcast (ADS-B) is the next generation of the surveillance technology in aviation. It's main purpose is to determine the position of the aircraft and then to broadcast it automatically, alongside with altitude, speed and heading, to ground facilities and other aircrafts in the vicinity. Technical characteristics of the system are explained, and so is the structure of the transmitted signals. Technical characteristics of a software defined radio are explained, and such a receiver was used in the experimental part of the thesis for receiving ADS-B signals