Initialization Technique in Variable and Multiple Target Tracking Systems

We present initialization of targets in multiple and variable number of target-tracking systems (where targets maneuver dynamically with random accelerations) in this paper where especially, received signal strength (RSS) model sensors are applied in wireless sensor networks. RSS measurement model does not allow to form one to one mapping between states and observations (or measurement). Based on least squares method (along with modified version), any newly appeared single target is detected and initialized by the particle filtering. We introduce “residue cancelation lateration (RCL)” method for initializing a newly appeared target besides existing target. Initialization of the targets in variable number of target tracking system is very important because under RSS measurement model, it is not very efficient to detect or track multiple and variable number of targets because it does not give the one to one mapping between measurement and true states. This fast and efficient initialization technique can be contributed to the multiple target tracking system where the number of targets varies. CONTENTS