Results 1 to 10 of about 88,237 (307)

Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation

open access: yesGuangtongxin yanjiu, 2022
In order to solve the problem that the laser satellite terminal can realize the ranging function while completing the communication function, this paper designs a method based on the Delta-Sigma modulation to realize the laser phase ranging, which can ...
Jin-xin ZUO   +6 more
doaj   +4 more sources

Task‐dependent intermuscular coherence between postural muscles during voluntary upright reaching [PDF]

open access: yesExperimental Physiology
Intermuscular coherence provides a window into the neural mechanisms coordinating posture and movement. This study investigated task‐dependent modulation of coherence between postural muscles in healthy young adults performing upright forward and lateral
Imma Ceriello   +4 more
doaj   +2 more sources

Adaptive Delta Modulation Simulation and Analysis Using MatLab

open access: yesParadigma, 2023
The system for converting analog signals to digital signals has become a necessity, considering that the tools currently used are digital computers. One of the analog-to-digital conversion systems is the delta modulation system. In delta modulation, only
Djadjat Sudaradjat, Andi Rosano
doaj   +1 more source

Short Word-Length Entering Compressive Sensing Domain: Improved Energy Efficiency in Wireless Sensor Networks

open access: yesInformation, 2021
This work combines compressive sensing and short word-length techniques to achieve localization and target tracking in wireless sensor networks with energy-efficient communication between the network anchors and the fusion center.
Nuha A. S. Alwan, Zahir M. Hussain
doaj   +1 more source

On the stability of sigma delta modulators [PDF]

open access: yesIEEE Transactions on Signal Processing, 1993
A framework for stability analysis of sigma-delta modulators is presented. It is argued that limit cycles for constant inputs are natural objects to investigate in this context. A number of analytical and approximate techniques to aid the stability analysis of the double loop and interpolative modulators are discussed and lead to ways of improving the ...
Søren Hein, Avideh Zakhor
openaire   +1 more source

Algorithm based on 2‐bit adaptive delta modulation and fractional linear prediction for Gaussian source coding

open access: yesIET Signal Processing, 2021
A novel 2‐bit adaptive delta modulation (ADM) algorithm is presented based on uniform scalar quantization and fractional linear prediction (FLP) for encoding the signals modelled by a Gaussian probability density function. The study focusses on two major
Zoran Peric   +2 more
doaj   +1 more source

Design and Analysis of Binary Scalar Quantizer of Laplacian Source with Applications

open access: yesInformation, 2020
A compression method based on non-uniform binary scalar quantization, designed for the memoryless Laplacian source with zero-mean and unit variance, is analyzed in this paper.
Zoran Peric   +3 more
doaj   +1 more source

Multilevel Delta Modulation with Switched First-Order Prediction for Wideband Speech Coding

open access: yesElektronika ir Elektrotechnika, 2018
In this paper a delta modulation speech coding scheme based on the ITU-T G.711 standard and the switched first-order predictor is presented. The forward adaptive scheme is used, where the adaptation to the signal variance is performed on frame-by-frame ...
Zoran Peric   +2 more
doaj   +1 more source

Delta- and theta-band cortical tracking and phase-amplitude coupling to sung speech by infants

open access: yesNeuroImage, 2022
The amplitude envelope of speech carries crucial low-frequency acoustic information that assists linguistic decoding at multiple time scales.
Adam Attaheri   +12 more
doaj   +1 more source

Experimental characterization of Sigma Delta Radio over fiber system for 5G C-RAN downlink

open access: yesICT Express, 2020
Radio over Fiber is a promising technology for the 5G Cloud Radio Access Network. We demonstrate experimentally Sigma Delta Radio over Fiber by means of Sigma Delta Modulator (SDM) subsequently replacing expensive digital to analog converters.
Muhammad Usman Hadi   +3 more
doaj   +1 more source

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