Results 11 to 20 of about 326,210 (336)

Multifunctional mixed analog/digital signal processor based on integrated photonics

Opto-Electronic Science
Photonic signal processing offers a versatile and promising toolkit for contemporary scenarios ranging from digital optical communication to analog microwave operation.
Yichen Wu, Qipeng Yang, Bitao Shen, Yuansheng Tao, Xuguang Zhang, Zihan Tao, Luwen Xing, Zhangfeng Ge, Tiantian Li, Bowen Bai, Haowen Shu, Xingjun Wang   +11 more
doaj   +3 more sources

A Single-Photodiode Framework for the Co-Detection of Hybrid Digital and Analog Radio-Over-Fiber Signals

IEEE Access, 2023
The continuous advancement of wireless mobile communication necessitates an increase in the allocated frequency bands for each generation. Consequently, higher frequency photodiodes are required in analog radio-over-fiber (ARoF) fronthaul solutions ...
Guo Hao Thng, Said Mikki
doaj   +1 more source

In-sensor analog optoelectronic processing of concurrent event and memory signals for dynamic vision sensing. [PDF]

Nat Commun
Kim Y, Park H, Kim M, Jang S, Jeong DY, Handriani LS, Yun H, Gwak N, Oh N, Yang SI, Kwon S, Nam S, Park WI.   +12 more
europepmc   +3 more sources

High-Bandwidth Coherent OFDM-Nyquist-TDM Transceiver With Low-Bandwidth Electronics

IEEE Access, 2023
We present a broadband coherent orthogonal frequency-division multiplexing (OFDM) transceiver based on orthogonal sampling and low bandwidth electronic analog signal processing.
Younus Mandalawi, Karanveer Singh, Mohamed I. Hosni, Janosch Meier, Thomas Schneider   +4 more
doaj   +1 more source

Optimization of Quantized Analog Signal Processing Using Genetic Algorithms and μ-Law

IEEE Open Journal of Circuits and Systems, 2022
Digital mismatch calibration for quantized analog (QA) signal processing is proposed for the first time. Since the proposed calibration mechanism does not require uniform QA slicer levels, non-uniform quantization can be applied to improve the system ...
Qingnan Yu, Tony Chan Carusone, Antonio Liscidini   +2 more
doaj   +1 more source

CMOS design of cellular APAPs and FPAPAPs: an overview [PDF]

, 2002
CNN-based analog visual microprocessors have similarities with the so-called Single Instruction Multiple Data systems, although they work directly on analog signal representations obtained through embedded optical sensors and hence do not need a frontend
Rodríguez Vázquez, Ángel Benito
core   +1 more source

Ultrasonic Signal Time-Expansion Using DAC Frequency Modulation

Vibration, 2023
Ultrasonic signals can be conveniently recorded using modern high-speed analog-to-digital converters and analyzed through digital signal processing algorithms.
Massimiliano Rossi, Marco Frasca
doaj   +1 more source

Analog to Digital Converters (ADC): A Literature Review [PDF]

E3S Web of Conferences, 2020
The signal processing is advancing day by day as its needs and in wireline/wireless communication technology from 2G to 4G cellular communication technology with CMOS scaling process.
Dalmia Hemlata, Sinha Sanjeet K.
doaj   +1 more source

CMOS realization of a 2-layer CNN universal machine chip [PDF]

, 2002
Some of the features of the biological retina can be modelled by a cellular neural network (CNN) composed of two dynamically coupled layers of locally connected elementary nonlinear processors.
Carmona Galán, Ricardo, Domínguez Castro, Rafael, Espejo Meana, Servando Carlos, Jiménez Garrido, Francisco José, Rodríguez Vázquez, Ángel Benito   +4 more
core   +1 more source

Trustworthy Digital Representations of Analog Information—An Application-Guided Analysis of a Fundamental Theoretical Problem in Digital Twinning

Algorithms, 2023
This article compares two methods of algorithmically processing bandlimited time-continuous signals in light of the general problem of finding “suitable” representations of analog information on digital hardware.
Holger Boche, Yannik N. Böck, Ullrich J. Mönich, Frank H. P. Fitzek   +3 more
doaj   +1 more source