No abstract

The need for light weight yet highly mobile robotic platforms is driven by the limitation of available power. With unlimited energy, surface exploration missions could survive for months or years and greatly exceed their current productivity. The Sun-Synchronous Navigation project is developing long-duration solar-powered robot exploration through research in planning techniques and low-mass robot configurations. Hyperion is a rover designed and built for experiments in sun-synchronous exploration. This paper details Hyperion's steering mechanism and control, which features 4-wheel independent drive and an innovative passively articulated steering joint for locomotion.

In November of 1998, an expedition from Carnegie Mellon University travelled to the Patriot Hills, Antarctica. The purpose of the expedition was to demonstrate autonomous navigation and robotic classification of meteorites and the characterization of various robotics technologies in a harsh, polar setting. This paper presents early results of experiments performed on this expedition with CCD cameras and laser range finders. It evaluates the ability of these sensors to characterize polar terrain. The effect of weather on this characterization is also analyzed. The paper concludes with a discussion on the suitability of these sensors for Antarctic mobile robots.

No abstract

Abstract