Acoustic based navigation of cooperative marine robots with advanced filter techniques. Issue 23 (2016)

• Record Type: Journal Article
• Authors: Glotzbach, Thomas; Grebner, Anna-Maria; Ament, Christoph
• Is Part Of: IFAC-PapersOnLine. Volume 49:Issue 23(2016)
• Page Start: 335
• Page End: 340
• Publication Date: 2016
• Subjects: Marine Robots -- Navigation -- Cooperative Robots -- Acoustic Communication -- Ultra-Short Baseline -- Position Estimation -- Unscented Kalman Filter; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2016.10.426
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: In this paper, we discuss a possible navigation solution for two autonomous marine robots, of which one is submerged. The situation is a sub task of the overall mission scenario of a recent research project. The goal is to provide the submerged robot with an estimation of the positon of the surface unit relative to its own (unknown) position. On that base, a control algorithm can be developed, what we cite from literature. The navigation solution that we propose here is an enhancement of an older version we published before where we used a linear Kalman filter and 'pseudo-linear' measurements. Our new solution is based on the employment of an Unscented Kalman Filter, therefore the non-linear structure of system model and measurement model can be used. We will compare the new solution with the older one in MATLAB simulations and demonstrate that it leads to even better results.