Digital signal processing 9 Performance 6 article 6 Data acquisition 5 Deep learning 5 Digital storage 5 E-learning 5 Optical fibers 5 human 5 Optical fiber communication 4 Signal processing 4 Signal to noise ratio 4 deep learning 4 Article 3 Bit error rate 3 COVID-19 3 Extraction 3 Learning systems 3 Mean square error 3 Optical-fiber communication 3 Quantization (signal) 3 Satellites 3 signal noise ratio 3 signal processing 3 Analog-to-digital conversions 2 Analogue-to-digital conversion 2 Audio acoustics 2 Automation 2 Backpropagation 2 Biomedical signal processing 2