FDOA-only Localization using Particle Swarm Optimization Method

This paper addresses the problem of source localization using FDOA-only measurements. A Particle Swarm Optimization (PSO)-based FDOA-only localization method is proposed to find the optimal source position estimate. To avoid randomly generating initial particles in the whole solution space, we assume a set of virtual Time Difference of Arrival (TDOA) measurements and performs joint TDOA-FDOA localization to produce initial particles on the iso-FDOA curve that the source location must lie on if the scenario is noise-free. The updates of the positions and velocities of the proposed method are the same as those of the standard PSO method. Simulation results demonstrate the effectiveness of the proposed method.