Results 41 to 50 of about 2,799,007 (333)

THE DISCRETIZATION OF THE POLARIZED SIGNAL

open access: yesНаучный вестник МГТУ ГА, 2018
Often, the monitoring systems solution of remote sensing problems, recognition (classification, discrimination) of radar objects using radio polarimetry methods is required in real time mode with the display of the current information on the radar ...
P. E. Korneev
doaj   +1 more source

Demodulating BOC signals using compressive signal processing

open access: yesDianzi Jishu Yingyong, 2019
In order to lower the sampling frequency of binary offset carrier(BOC) signal, a BOC signal demodulation scheme based on compressive signal processing is proposed.
Song Peng, He Guodong
doaj   +1 more source

Adaptive Processing With Signal Contaminated Training Samples

open access: yesIEEE Transactions on Signal Processing, 2013
We consider the adaptive beamforming or adaptive detection problem in the case of signal contaminated training samples, i.e., when the latter may contain a signal-like component. Since this results in a significant degradation of the signal to interference and noise ratio at the output of the adaptive filter, we investigate a scheme to jointly detect ...
Besson, Olivier, Bidon, Stéphanie
openaire   +4 more sources

Design of Acoustic Signal for Positioning of Smart Devices

open access: yesSensors, 2023
This paper addresses the limitations of using smartphones in innovative localization systems based on audio signal processing, particularly in the frequency range of 18–22 kHz, due to the lack of technical specifications and noise characterization.
Veronika Hromadova   +2 more
doaj   +1 more source

Imaging Method for Co-prime-sampling Space-borne SAR Based on 2D Sparse-signal Reconstruction

open access: yesLeida xuebao, 2020
Co-prime-sampling space-borne Synthetic Aperture Radar (SAR) replaces the traditional uniform sampling by performing co-prime sampling in azimuth, which effectively alleviates the conflict between spatial resolution and effective swath width, while also
ZHAO Wanwan   +3 more
doaj   +1 more source

Evaluating graph signal processing for neuroimaging through classification and dimensionality reduction [PDF]

open access: yesIEEE Global Conference on Signal and Information Processing, 2017
Graph Signal Processing (GSP) is a promising framework to analyze multi-dimensional neuroimaging datasets, while taking into account both the spatial and functional dependencies between brain signals.
M. Ménoret   +3 more
semanticscholar   +1 more source

Phased Fractional Lower-Order Cyclic Moment Processed in Compressive Signal Processing

open access: yesIEEE Access, 2019
In signal processing research, cyclostationarity and fractional lower-order statistics (FLOS) are two important solutions to non-stationary signals and non-Gaussian noises, respectively.
Tao Liu   +4 more
doaj   +1 more source

TERRESTRIAL LASER SCANNER DATA DENOISING BY DICTIONARY LEARNING OF SPARSE CODING [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Point cloud processing is basically a signal processing issue. The huge amount of data which are collected with Terrestrial Laser Scanners or photogrammetry techniques faces the classical questions linked with signal or image processing.
E. Smigiel, E. Alby, P. Grussenmeyer
doaj   +1 more source

Near-Optimal Graph Signal Sampling by Pareto Optimization

open access: yesSensors, 2021
In this paper, we focus on the bandlimited graph signal sampling problem. To sample graph signals, we need to find small-sized subset of nodes with the minimal optimal reconstruction error.
Dongqi Luo   +4 more
doaj   +1 more source

lop-DWI: A Novel Scheme for Pre-Processing of Diffusion Weighted Images in the Gradient Direction Domain

open access: yesFrontiers in Neurology, 2015
We describe and evaluate a pre-processing method based on a periodic spiral sampling of diffusion gradient directions for high angular resolution diffusion magnetic resonance imaging.
Farshid eSepehrband   +12 more
doaj   +1 more source

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