Results 41 to 50 of about 2,819,720 (335)
Sampling phased array a new technique for signal processing and ultrasonic imaging
L. von Bernus+5 more
openalex +3 more sources
Adaptive Processing With Signal Contaminated Training Samples
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
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
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]
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
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]
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
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
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
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