Time-of-Arrival Transmitter Localization: From Algorithms to Empirical Performance Evaluation
Over the past three and a half years, we have been designing, implementing, and deploying a wildlife tracking system using the reverse-GPS or time-of-arrival principle. The system estimates the location of wild animals from arrival-time estimates of signals emitted by miniature radio transmitters attached to the animals. The talk will briefly describe the system but will focus mainly on the algorithms that it uses. I will describe the algorithms, some of which are new, the assumptions that underlie them, and how the assumptions and the algorithms affect the accuracy of the system and its performance. The accuracy evaluation is completely realistic; it is based on both stationary transmitters at known positions and on transmitters attached to stationary wild animals (Owls, which are stationary during the day).
This is joint work with Adi Weller-Weiser, Ran Nathan, Yotam Orchan, Tony Weiss, and others.