Results 31 to 40 of about 5,499,886 (333)

Combining coded signals with arbitrary modulations in orthogonal relay channels [PDF]

open access: yes, 2008
We consider a relay channel for which the following assumptions are made. (1) The source-destination and relay-destination channels are orthogonal (frequency division relay channel). (2) The relay implements the decode-and-forward protocol.
Berthet, Antoine   +2 more
core   +6 more sources

Low‐complexity BER computation for coherent detection of orthogonal signals

open access: yesElectronics Letters, 2021
The bit error rate (BER) computation for coherently detected orthogonal signals in additive white Gaussian noise requires numerical integration, which can be cumbersome in low‐complexity devices. Here, a BER computation approach that circumvents the need
L. Rugini, G. Baruffa
doaj   +1 more source

Orthogonal Components Forming of the Microprocessor-Based Protection Input Signals

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2020
The use of orthogonal components (OS) is the main direction of determining information parameters in microprocessor relay protection and automation of electric power systems.
F. A. Romaniuk   +3 more
doaj   +1 more source

Improved DAC driving scheme for OFDM applications [PDF]

open access: yes, 2010
Presented is a 'Redundant Signed Digit' driving scheme for binary weighted D/A conversion. This scheme retains the simplicity of conventional binary weighted D/A conversion, but has greatly improved robustness with regard to parasitic effects, especially
Catteau, Benoit   +2 more
core   +1 more source

Classification of Arrhythmias Using a Pre-trained Deep Learning Model with Binary Images of Segmented ECG

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2023
Introduction. Arrhythmia or irregular heartbeat occur when the heart’s electrical system is disorganized or out of sync, which may cause strokes, sudden cardiac death, and other complications.
H. Solieman, S. Sali
doaj   +1 more source

Relaxed Recovery Conditions for OMP/OLS by Exploiting both Coherence and Decay [PDF]

open access: yes, 2015
We propose extended coherence-based conditions for exact sparse support recovery using orthogonal matching pursuit (OMP) and orthogonal least squares (OLS).
Drémeau, Angélique   +2 more
core   +3 more sources

Some new RS-coded orthogonal modulation schemes for future GNSS

open access: yesICT Express, 2021
Considering the availability of the global navigation satellite system (GNSS) signals and the increase in its data rate in the future, this paper proposes some new Reed-Solomon coded (RS-coded) orthogonal modulation schemes using the Hadamard codes, as ...
Hyunwoo Cho   +3 more
doaj   +1 more source

A sigma factor toolbox for orthogonal gene expression in Escherichia coli [PDF]

open access: yes, 2018
Synthetic genetic sensors and circuits enable programmable control over timing and conditions of gene expression and, as a result, are increasingly incorporated into the control of complex and multi-gene pathways.
Bervoets, Indra   +6 more
core   +4 more sources

Orthogonal signals with jointly balanced spectra: Application to cdma transmissions

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
This paper presents a technique for generating orthogonal bases of signals with jointly optimized spectra, in the sense that they are made as close as possible.
T. Chonavel
semanticscholar   +1 more source

A symmetric adaptive visibility graph classification method of orthogonal signals for automatic modulation classification

open access: yesIET Communications, 2023
Visibility graph methods allow time series to mine non‐Euclidean spatial features of sequences by using graph neural network algorithms. Unlike the traditional fixed‐rule‐based univariate time series visibility graph methods, a symmetric adaptive ...
Haihai Bai   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy