Autodetection of radial gratings with digital receiving mode
Song Chiang Shen, Xiangqun Cao, Jiwu Chen · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1993
A new method for automatic and fast self-detection of the main indexes of radial grating is proposed and achieved, based on digital sampling and digital processing. High-multiple digital subdivision and improvement of the quality of the signal lead to high detection precision.