A photonic feature extractor for broadband radio-frequency signals

https://techxplore.com/news/2024-04-photonic-feature-extractor-broadband-radio.html#google_vignette

"key information extracted directly in signal reception's analog link, reducing data redundancy and data rate... photonic chip imitates convolutional neural network, outputs key features without digital processing from RF received by antenna... compresses data rate 4X, maintaining 97.5% target recognition accuracy, 7.7% better recognition accuracy... spatiotemporal feature extraction performs 6% better than 1D feature extraction... radar, machine vision, medical imaging, autonomous driving, robotics, and smart factories"