Frequency Difference of Arrival (FDOA)

Frequency Difference of Arrival (FDOA) is a technique used to locate a moving source, like a vehicle or aircraft, by measuring the difference in frequency of its signal received at two or more sensors. As the source moves, the signals received at different sensors experience slight shifts in frequency due to the Doppler effect. By analyzing these frequency differences between sensors, it’s possible to determine the source's position and movement. FDOA is commonly used in radar, sonar, and satellite tracking to accurately locate and monitor moving objects in various environments.