Abstract:

The problems of estimation and accuracy for target locating in the networking of two 2D radar stations are investigated. Considering the influence of the actual curvature of the earth on the accuracy of target locating, a geometric locating with data fusion algorithm based on the actual ellipsoidal earth model for the two 2D radar stations networking is presented; the observation model for two radar stations is designed; and the locating equations and expressions for accuracy estimation are calculated. In order to evaluate the algorithm, the computing cases are illustrated. It can be seen from these cases that the algorithm not only can improve locating accuracy, but also help to select the corresponding radars based on the geometrical dilution of precision (GDOP) charts to improve the accuracy of geometric locating.