There are different ESP32 Audio boards available that can be programmed with the Espressif ADF Framework. The ADF Framework contains an abstraction layer to support different codec audio chips (ES8388 ...

Abstract: Infrared small target detection is one of the key techniques in the infrared search and track system. Frequency differences among target, background, and noise are often important ...

Abstract: In this paper, a VCSEL-based C-band transmitter coupled to single-mode fiber is demonstrated. Using an on-wafer processed lens, low coupling loss (2.5dB) and large alignment tolerance ...