Distributed Target Localization and Tracking Using Distributed Bearing Sensors

Tracking of a moving target has attracted considerable interest in both military and civilian applications. There are different methods used for estimation of target position. One of these methods is to find the target position by using relative angle measurements of radiating source measured using direction finding sensors. In this method, direction finding sensors are deployed and their positions are known. The sensors provide relative bearing measurements of radiating source whose location has to be estimated. These bearing measurements and sensor position information are used to estimate the position of a target. In this paper we use two techniques (a) Single baseline model and (b) Least square estimation method for bearing only source localization. We also analyse the effect of noise on bearing measurements and the effect of number of sensors on position estimation error.