ABSTRACT
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Since the launch of Sputnik (October 4, 1957) significant resources have been
invested in the design and development of guidance, navigation, and control
(GN&C) systems for aerospace vehicles and platforms. As a result, the extraordinary
progress in these critically important systems has been used to measure, guide,
stabilize, and control the trajectory, attitude, and appendages (i.e., steerable antennas,
solar arrays, robotic arms, and pointable sensors) of Earth-orbiting satellites, inter-
planetary spacecraft and probes, space-based robots, planetary rovers, and related
platforms.
