Results 31 to 40 of about 97,280 (308)

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

An ABORT-like detector with improved mismatched signals rejection capabilities [PDF]

open access: yes, 2008
In this paper, we present a GLRT-based adaptive detection algorithm for extended targets with improved rejection capabilities of mismatched signals. We assume that a set of secondary data is available and that noise returns in primary and secondary data ...
Bandiera, Francesco   +3 more
core   +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

Impact of radio resource allocation and pulse shaping on PAPR of SC-FDMA signals [PDF]

open access: yes, 2007
"Single Carrier Frequency Division Multiple Access" (SC-FDMA) is a strong candidate for uplink transmissions in the 3G Long Term Evolution (LTE) standard.
Nix, AR   +5 more
core   +1 more source

Underdetermined Blind Source Separation of Synchronous Orthogonal Frequency Hopping Signals Based on Single Source Points Detection

open access: yesSensors, 2017
This paper considers the complex-valued mixing matrix estimation and direction-of-arrival (DOA) estimation of synchronous orthogonal frequency hopping (FH) signals in the underdetermined blind source separation (UBSS).
Chaozhu Zhang, Yu Wang, Fulong Jing
doaj   +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

Sparse kernel density construction using orthogonal forward regression with leave-one-out test score and local regularization [PDF]

open access: yes, 2004
This paper presents an efficient construction algorithm for obtaining sparse kernel density estimates based on a regression approach that directly optimizes model generalization capability.
Harris, C. J.   +3 more
core   +1 more source

Probability density estimation with tunable kernels using orthogonal forward regression [PDF]

open access: yes, 2010
A generalized or tunable-kernel model is proposed for probability density function estimation based on an orthogonal forward regression procedure. Each stage of the density estimation process determines a tunable kernel, namely, its center vector and ...
Hong, Xia   +3 more
core   +1 more source

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 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

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