An Arduino library for the Hi-Link HLK-LD2450 24Ghz FMCW radar sensor. This sensor is a Frequency Modulated Continuous Wave radar, which makes it good for presence detection and has some interesting ...

Abstract: High-precision 3-D topography is essential for surface profile detection in chips, precision optical lenses, and other components. A nanometer-scale laser interferometric distance sensor ...

Abstract: The disadvantages of ellipse fitting method based on algebraic method include its large sampling range, unclear physical explanation of the parameters of the equation, uncontrollable ...

China has successfully conducted its first satellite laser ranging at Earth-Moon distance, marking a milestone in its deep-space exploration capabilities, the Chinese Academy of Sciences announced on ...