TY - BOOK ID - 146020075 TI - The 1090 Megahertz Riddle: A Guide to Decoding Mode S and ADS-B Signals PY - 2021 PB - Delft TU Delft Open DB - UniCat KW - Aerospace & aviation technology KW - Aircraft Surveillance KW - Decoding KW - Mode S KW - ADS-B KW - Open data KW - pyModeS KW - Aircraft Surveillance KW - Decoding KW - Mode S KW - ADS-B KW - Open data KW - pyModeS UR - https://www.unicat.be/uniCat?func=search&query=sysid:146020075 AB - In the last twenty years, aircraft surveillance has moved from controller-based interrogation to automatic broadcast. The Automatic Dependent Surveillance-Broadcast (ADS-B) is one of the most common methods for aircraft to report their state information like identity, position, and speed. Like other Mode S communications, ADS-B makes use of the 1090 megahertz transponder to transmit data. The protocol for ADS-B is open, and low-cost receivers can easily be used to intercept its signals. Many recent air transportation studies have benefited from this open data source. However, the current literature does not offer a systematic exploration of Mode S and ADS-B data, nor does it explain the decoding process.This book tackles this missing area in the literature. It offers researchers, engineers, and enthusiasts a clear guide to understanding and making use of open ADS-B and Mode S data. The first part of this book presents the knowledge required to get started with decoding these signals. It includes background information on primary radar, secondary radar, Mode A/C, Mode S, and ADS-B, as well as the hardware and software setups necessary to gather radio signals. After that, the 17 core chapters of the book investigate the details of all types of ADS-B signals and commonly used Mode S signals. Throughout these chapters, examples and sample Python code are used extensively to explain and demonstrate the decoding process. Finally, the last chapter of the book offers a summary and a brief overview of research topics that go beyond the decoding of these signals. ER -