Twice a year at dawn, a shaft of sunlight cuts through Abu Simbel’s Great Temple to light three statues—and in doing so turns ...

Abstract: Recently, reconfigurable intelligent surface (RIS) has been widely used to enhance the performance of millimeter wave (mmWave) communication systems, making beam alignment more challenging.

Abstract: We propose a combined alignment method based on deep learning angle measurement and laser nutation algorithm with multicore optical fiber in FSOC system. The experiment demonstrates average ...