High-Performance 40 GHz Component Characterization in a Portable, PC-Controlled Package
Radio direction finding uses characteristics of received radio waves to determine the direction or location of a transmitting source. Direction-finding capabilities are valuable across a range of mission-critical RF applications, including spectrum monitoring and management, SIGINT/COMINT, drone detection, and search and rescue.
This paper examines three established direction-finding techniques—Angle of Arrival (AoA), Time Difference of Arrival (TDoA), and Pseudo-Doppler—and compares their computational requirements, accuracy, environmental suitability, and implementation considerations. It also explores hybrid systems that combine AoA and TDoA and examines the receiver and antenna-switching architectures used to implement these techniques.
