Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

Abstract: This paper addresses the unique challenges of compressing raw plenoptic video, in which the inherent hexagonal micro-image layout and sparse distribution of motion vectors (MVs) often ...

Abstract: The Doppler scatterometer is an instrument used in real aperture radar in conjunction with a circular scanning antenna and has wide swath and multiangle characteristics. Many scholars have ...