Results 51 to 60 of about 1,142,708 (193)

DSM-Based Precise Pointing Angle Deviation Measurement Method for Beaconless Free Space Optical Communication

open access: yesIEEE Photonics Journal, 2023
In free space optical (FSO) communication, acquisition, tracking and pointing (ATP) is the key technology to maintain a high-quality FSO link. Specifically, the detection of pointing angle deviation greatly affects the performance of ATP, especially ...
Xueyuan Ao   +7 more
doaj   +1 more source

An Optimal Family of Exponentially Accurate One-Bit Sigma-Delta Quantization Schemes [PDF]

open access: yes, 2010
Sigma-Delta modulation is a popular method for analog-to-digital conversion of bandlimited signals that employs coarse quantization coupled with oversampling.
Deift, Percy   +2 more
core  

Analisa Kinerja Sinusoidal PWM Inverter untuk Pengaturan Kecepatan Motor Induksi Tiga Fasa

open access: yesTeknika, 2016
PWM (pengaturan lebar pulsa) merupakan salah satu teknik yang baik untuk digunakan dalam sistem kendali (control system) saat ini. Pengaturan lebar modulasi dipergunakan di berbagai bidang yang sangat luas, salah satu diantaranya adalah pengaturan ...
Heri Haryanto, Vicky Immanuel
doaj   +1 more source

Comparative Study between Duty Cycle Modulation (DCM) and Sigma-Delta (Ʃ∆) Modulation Based on Analog to Digital Conversion [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2023
This paper presents a virtual comparative study between the Analog to Digital Conversion (ADC) based Duty Cycle Modulation (DCM) and Sigma-Delta (Ʃ∆) modulation.
OTAM Steve Ulriche, MOFFO Lonla Bertrand
doaj  

HTS pulse-stretcher and second order modulator: design and first results [PDF]

open access: yes, 2005
One of the remaining challenges in the application of superconducting electronics is the interfacing between superconducting and semiconducting environments. The voltage and speed mismatch between RSFQ pulses and semiconducting read-out electronics makes
Brinkman, Alexander   +8 more
core   +2 more sources

Optimum quantization of a class of non-bandlimited signals [PDF]

open access: yes, 1996
We consider the quantization of a special class of non bandlimited signals, namely the class of discrete time signals that can be recovered from their decimated version.
Tuqan, Jamal, Vaidyanathan, P.P.
core  

Digital microphone signal processing [PDF]

open access: yes, 2011
Cílem této práce je implementace digitálních decimačních filtrů do programovatelného hradlového pole. Součástí práce je také popis technologie MEMS včetně srovnání mikrofonů s technologií MEMS různých výrobců.
Vykydal, Martin
core  

A Low-Power Delta-Sigma Capacitance-to-Digital Converter for Capacitive Sensors

open access: yesIEEE Access, 2019
This paper proposes a low-power delta-sigma capacitance-to-digital converter (CDC) for a capacitive sensor. The input of the capacitive sensor employs a zoomed-in technique with the offset capacitor to extend the input capacitance range. The proposed CDC
Rongshan Wei   +3 more
doaj   +1 more source

Laser-sound reproduction by pulse amplitude modulation audio streams

open access: yesScientific Reports
Recently, the possibility to reproduce complex continuous acoustic signals via pulsed laser-plasma sound sources was demonstrated. This was achieved by optoacoustic transduction of dense laser pulse trains, modulated via single- or multi-bit Sigma–Delta,
Konstantinos Kaleris   +3 more
doaj   +1 more source

Adaptive Delta-Sigma Modulation for Enhanced Input Dynamic Range

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
An adaptive delta-sigma modulator of 1st order with one-bit quantization is presented. Adaptation is instantaneous and based on an exponential law. The feedback signal is a multibit discrete-level signal generated by a digital-to ...
Clemens M. Zierhofer
doaj   +1 more source

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