Results 41 to 50 of about 1,142,708 (193)

Modeling and Simulation of Voltage Inverter with Sigma-Delta Modulation [PDF]

open access: yes, 2017
Cílem diplomové práce je vytvořit modulační strategii využívající principu sigma-delta modulace. V úvodních teoretických pasážích práce jsou popsány principy a vlastnosti vybraných standardních metod řízení napěťových střídačů.
Kořený, Lukáš
core  

A Novel Three-Dimensional Sigma–Delta Modulation for High-Switching-Frequency Three-Phase Four-Wire Active Power Filters

open access: yesElectronics
This article presents a new modulation technique called three-dimensional sigma–delta (3D-ΣΔ) modulation for high-frequency three-leg four-wire voltage source converters (VSCs) that use wide-bandgap (WBG) semiconductors.
David Lumbreras   +4 more
semanticscholar   +1 more source

Low-Pressure Small MEMS Accelerometer Using Sigma-Delta Modulation

open access: yesProceedings, 2018
Encapsulation of MEMS accelerometers in vacuum is advantageous, since it allows integration with other sensors, leading to size and cost reduction. One technique to operate MEMS accelerometers in vacuum is the use of closed-loop Sigma-Delta modulation ...
Vasco Lima   +3 more
doaj   +1 more source

Analysis of Booth Multiplier based Conventional and Short Word Length FIR Filter

open access: yesMehran University Research Journal of Engineering and Technology, 2018
The optimized implantation of digital filters has remained one of the challenging tasks, for FPGA (Field- Programmable Gate Array) based system designers, due to the involvement of very complex circuitry for multiplication.
Aneela Pathan   +3 more
doaj   +1 more source

Analysis of the dynamics of an active control of the surface potential in metal oxide gas sensors [PDF]

open access: yes, 2018
Postprint (author's final ...
Domínguez Pumar, Manuel   +2 more
core   +2 more sources

The Hipparcos Transit Data: What, why and how? [PDF]

open access: yes, 1999
The Hipparcos Transit Data are a collection of partially reduced, fully calibrated observations of (mostly) double and multiple stars obtained with the ESA Hipparcos astrometry satellite.
Lindegren, L., Quist, C. F.
core   +2 more sources

A Hierarchical Modulation Enabled SNR Allocable Delta-Sigma Digital Mobile Fronthaul System

open access: yesIEEE Photonics Journal, 2022
Internet of everything is being build up rapidly, which causes much higher requirements towards the flexibility of communication resources, especially the adaptivity of the fronthaul to various transmission distances and capacities.
Yang Zou   +9 more
doaj   +1 more source

Design Sign of Delta Sigma Wattmeter [PDF]

open access: yes, 2009
Instantaneous power in a load is measured by multiplying the voltage across it by the current flowing through it. The multiplication is achieved in a delta sigma wattmeter by using two samplers rather than a multiplier.
Pradhan, Parth
core  

SNDR sensitivity analysis for cascaded ΣΔ modulators [PDF]

open access: yes, 2000
Cascade, single and multi-bit, ΣΔ architectures provide stable, high order quantization noise shaping used in high resolution A/D conversion. One major disadvantage of cascaded ΣΔ topologies is the extreme SNDR sensitivity to gain mismatch between the ...
Geddie, C, Hoke, M, Kocak, T, Morizio, J
core   +2 more sources

Dual-Polarity SiPM Readout Electronics Based on 1-bit Sigma-Delta Modulation Circuit for PET Detector Applications

open access: yesIEEE Transactions on Nuclear Science, 2019
We investigated a simple and effective method to extend 1-bit sigma-delta modulation (SDM) circuit-based charge-to-digital converter (QDC) to read dual-polarity silicon photomultiplier (SiPM) output signals.
Xinyi Cheng, K. Hu, Y. Shao
semanticscholar   +1 more source

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