Results 41 to 50 of about 2,819,720 (335)

Sampling phased array a new technique for signal processing and ultrasonic imaging

open access: greenSPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006
L. von Bernus   +5 more
openalex   +3 more sources

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

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

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

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

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

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

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

Adaptive Rate Sampling and Filtering Based on Level Crossing Sampling

open access: yesEURASIP Journal on Advances in Signal Processing, 2009
The recent sophistications in areas of mobile systems and sensor networks demand more and more processing resources. In order to maintain the system autonomy, energy saving is becoming one of the most difficult industrial challenges, in mobile computing.
Saeed Mian Qaisar   +2 more
doaj   +1 more source

Wideband Mixed Signal Separation Based on Photonic Signal Processing

open access: yesTelecom, 2021
The growing needs for high-speed and secure communications create an increasing challenge to the contemporary framework of signal processing. The coexistence of multiple high-speed wireless communication systems generates wideband interference.
Yang Qi, Taichu Shi, Ben Wu
doaj   +1 more source

Home - About - Disclaimer - Privacy