Publication: Trilateration method analysis on localised tracking for a target
Date
2009-03-01
Authors
Tang, Chok Kim
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Abstract
Existing researches on location tracking focus either entirely on indoor or entirely
on outdoor by using different techniques. This project aims to implement
trilateration method for object tracking both indoor and outdoor by using three
wireless data transceivers as reference nodes and a spectrum analyzer as target.
RSSI (Received Signal Strength Indication) technique together with
enhancement algorithms is proposed to cater this solution. The proposed RSSI based tracking technique is divided into two main phases, namely the calibration of RSSI coefficients (deterministic phase) and the distance along with position
estimation of target location by iterative trilateration (probabilistic phase).
Experiment measurements are carried out to analyze trilateration method in
tracking an object. The results reveal the feasibility of these algorithms in
designing target positioning system with acceptable offset.