Application Note

Time Difference Of Arrival (TDOA)

Source: Anritsu Company

By Anritsu Company

Time Difference of Arrival (TDOA) is a technique for geo-locating RF sources. It requires three or more remote receivers (probes) capable of detecting the signal of interest. Anritsu provides TDOA measurements with MS2710xA Remote Spectrum Monitors (RSM) and the Vision software suite. To successfully use TDOA it is essential to understand the type of signals that can be used, how the results depend on the geometry of the measurement (probe and source locations), what the sources of uncertainty are and how to mitigate them, and how to know if the answer is meaningful.