Accurate Power-Efficient Format-Scalable Multi-Parallel Optical Digital-to-Analogue Conversion
In optical transmitters generating multi-level constellations, optical modulators are preceded by Electronic Digital-to-Analog-Converters (eDAC). It is advantageous to use eDAC-free Optical Analog to Digital Converters (oDAC) to directly convert digital ...
Moshe Nazarathy, Ioannis Tomkos
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Fully photonic analogue to digital conversion technique for super broadband digitized radio over fibre link [PDF]
The official published version can be obtained from the link below - Copyright @ 2011 IEEEDigitized-Radio over Fibre (DRoF) techniques provide higher dynamic range and are more robust against optical link impairments.
Nilavalan, R +2 more
core +6 more sources
Digital radio over fibre for future broadband wireless access network solution [PDF]
Copyright @ 2010 IEEEDigital systems are more flexible and environment-process-tolerant than analogue systems. They are more reliable and robust against cross-talk, interference and channel noises, and are capable of covering higher dynamic range than ...
Mehdi Fakhraie, S +7 more
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Radiation testing of low cost, commercial off the shelf microcontroller board
The impact of gamma radiation on a commercial off the shelf microcontroller board has been investigated. Three different tests have been performed to ascertain the radiation tolerance of the device from a nuclear decommissioning deployment perspective ...
Tomas Fried +8 more
doaj +1 more source
A new blind image conversion complexity metric for intelligent CMOS image sensors
Many algorithms have been developed for complementary metal–oxide–semiconductor (CMOS) image sensors to speed up analogue‐to‐digital (A‐to‐D) conversion of captured images.
Mohamed R. Elmezayen, Suat U. Ay
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Radio Over Fiber Downlink Design for Spatial Modulation and Multi-Set Space-Time Shift-Keying
Spatial modulation (SM) and multi-set space-time shift-keying (MS-STSK) are capable of striking a flexible design trade-off between the multiplexing and diversity gains attained.
Yichuan Li +3 more
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Measurement of definite integral product of two more signals using two-bit ADCs [PDF]
This paper presents the two-bit stochastic converter theory of operation. This converter could be used for the precise measurement of the effective (root-mean-square) value of voltage, current, electric power or energy and thus, could be applicable to ...
Ličina Boris +2 more
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Predictive ECG coding using linear time-invariant models [PDF]
Electrocardiogram (ECG) signal compression suffers of lack of standards for analogue-digital conversion. Results of this study have shown that 8 bits/sample, although frequently in use, does not satisfy quality criteria for medical doctors.
Bošković Aleksandar +2 more
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Theoretical study of implementing an all-optical analogue-to-digital conversion based on the Mach–Zehnder interferometric configurations [PDF]
A new technique of ultrafast analogue-to-digital (A-D) conversion for an all-optical data processing is proposed. This technique is based on the Kerr nonlinearity-induced cross-phase modulation in single-mode Mach–Zehnder interferometer configurations ...
IVAN HERNANDEZ ROMANO +1 more
core +1 more source
The multi‐stage noise shaping (MASH) ΣΔ ADC has a good potential to achieve high‐order noise shaping (NS) and high resolution. However, it suffers from quantization noise leakage caused by the mismatch between the analogue NS filter and the digital ...
Lizhen Zhang, Jianhui Wu
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