Results 11 to 20 of about 327,770 (290)

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

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

open access: yesIEEE 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   +2 more
doaj   +1 more source

Si 3N 4-Based Integrated Optical Analog Signal Processor and Its Application in RF Photonic Frontend

open access: yesIEEE Photonics Journal, 2015
Digital signal processing has achieved great success in the field of signal processing over the past several decades. However, as the bandwidth requirement increases, the power consumption and effective number of bits (ENOB) of the analog-to-digital ...
Hongchen Yu   +9 more
doaj   +1 more source

Analog Signal Processing

open access: yes, 2013
Analog signal processing (ASP) is presented as a systematic approach to address future challenges in high speed and high frequency microwave applications. The general concept of ASP is explained with the help of examples emphasizing basic ASP effects, such as time spreading and compression, chirping and frequency discrimination.
Caloz, Christophe   +3 more
openaire   +3 more sources

Analysis and application of digital spectral warping in analog and mixed-signal testing [PDF]

open access: yes, 2003
Spectral warping is a digital signal processing transform which shifts the frequencies contained within a signal along the frequency axis. The Fourier transform coefficients of a warped signal correspond to frequency-domain 'samples' of the original ...
Allen, W. R. M.   +3 more
core   +1 more source

Ultrasonic Signal Time-Expansion Using DAC Frequency Modulation

open access: yesVibration, 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

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

open access: yes, 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

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

open access: yesAlgorithms, 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   +3 more
doaj   +1 more source

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

open access: yesE3S 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

Laser Doppler Blood Flow Imaging Using a CMOS Imaging Sensor with On-Chip Signal Processing

open access: yesSensors, 2013
The first fully integrated 2D CMOS imaging sensor with on-chip signal processing for applications in laser Doppler blood flow (LDBF) imaging has been designed and tested.
Cally Gill   +7 more
doaj   +1 more source

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