Effect of the Obsever Maneuvering Trajectory on Localizing Precision in Underwater Bearing-Only Target Tracking
Zhangsong Shi · Electronics Optics & Control · 2009
Concerning on the problem of obsever maneuvering trajectory and target position tracking precision in bearing-only target motion analysis for single station,and based on target position tracking lower limit CRLB,the Geometric Dilution of Precision(GDOP) is proposed to be the optimal performance indicator.The target position tracking lower limit of passive localization with complex expression is calculated by the way of numerical optimization calculation to obtain main factors affecting target position tracking precision.The influence of observer trajectory on fixed target localizing precision is analyzed.Simulations were carried out to study the influence of the routes of uniform motion in a straight line and constant advance angel uniform motion.The result showed that the route has great influence on target localizing precision.Therefore,observation route optimization can be used to enhance the observed extent and improve the performance of the positioning and tracking algorithm.