Reader Response Draft 3 of Mars Rover Mobility
From the article "Mars Exploration Rover Mobility and Robotic Arm Operational Performance"(Tunstel et al., 2005), for NASA Rovers Spirit and Opportunity to traverse the uneven surface of Mars, they are equipped with multiple features to aid with their mobility. Such features include high torque, all-wheel drive, with a double-ackermann steering system for the six-wheeled robotic rovers. A rocker-bogie suspension system allows the rovers to traverse the uneven ground with a level difference of 25 centimetres without tipping over and rolling. Each rover also has multiple camera pairs. Front and rear camera pairs are mounted on the body for sensing and evading danger. While another camera pair is mounted at a fixed height of 1.3 metres above the ground and is used for global path planning and visual odometry. Visual odometry uses the images taken from the elevated camera pair to map out the terrain of Mars for autonomous control (Tunstel et al., 2005). The mobility of NASA Rover...