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Method for Increasing the Signal-to-Noise Ratio of Rayleigh Back-Scattered Radiation Registered by a Frequency Domain Optical Reflectometer Using Two-Stage Erbium Amplification
AbstractSimple measures to improve the signal-to-noise ratio of optical frequency domain reflectometer (OFDR) readings are described. After applying...
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Models of the Formation of Doppler Spectrum of Surface Reverberation for Sound Waves of the Meter Range
Abstract —Narrowband spectra of sound scattered on the surface wave in the frequency range from 500 to 3000 Hz have been analyzed. Experimental...
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Measurements of the Angular Distribution of Elastically and Inelastically Scattered Products
This chapter summarizes the experimental setup (such as targets and detectors), measuring, and data reduction procedures towards obtaining the...
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Vector S-Parametric Analysis of Signal Phase Dynamic Radio Images
AbstractA vector method for recording phase-dynamic radio images is proposed by forming and numerically analyzing the S -parametric scattering matrix...
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The Basic Iterative Deconvolution: A Fast Instrumental Point-Spread Function Deconvolution Method That Corrects for Light That Is Scattered Out of the Field of View of a Detector
A point-spread function describes the optics of an imaging system and can be used to correct collected images for instrumental effects. The state of...
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Measurement of the Angular Distribution of 14.1 MeV Neutrons Scattered by Carbon Nuclei
AbstractTagged neutrons with an initial energy of 14.1 MeV scattered on a carbon sample are measured within the framework of the TANGRA project....
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Backscatter Ionospheric Sounding by a Continuous Chirp Signal
A spatially distributed chirp ionosonde records signals scattered by the Earth’s surface at long distances from the emitter, even with relatively low...
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Characteristics and Model of Pulsar Signal
The reason why the pulsar signal received in the solar system presents a stable pulse form is not because the external radiation of the pulsar itself...
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Differential absorption LIDAR signal denoising using empirical mode decomposition technique
Differential Absorption Lidar (DIAL) technique is a potential method for the remote detection of hazardous chemicals in the atmosphere. These...
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Calculation and Analysis of the Vacuum Polarization Signal in a Three-Beam Setup
AbstractWe report the development of an efficient method for calculating the number and characteristics of photons emitted by a vacuum polarized by...
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Effect of Specular High-Level Clouds on Scattered Solar Radiation Fluxes at the Zenith
AbstractThe technique and results of a complex experiment on studying the effect of high-level clouds (HLCs) on the scattered solar radiation flux...
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Development of a high-speed digital pulse signal acquisition and processing system based on MTCA for liquid scintillator neutron detector on EAST
In this experimental study, involving deuterium–deuterium fusion neutron emission spectroscopy measurement on the experimental advanced...
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The effects of the dead layer thickness increase to the regions in the spectrum response for a coaxial HPGe detector
In the work, we studied the influences of dead layer thickness on the whole gamma spectrum response for HPGe detector by using Monte Carlo...
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Machine learning in optical networks enhancement based on channel allocation and spectrum analysis for 5G application
Undoubtedly, Machine Learning (ML) for Optical Communication (OC) has been a popular topic in recent years and is likely to remain so for the...
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Development And Execution Of An FSO Communication System To Track The Scattered Laser Beam During Atmospheric Turbulence
Modern free-space optical communication systems primarily use intensity modulation with direct detection. The effectiveness of free-space optical...
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Methods for Estimating a Neutron Spectrum Using a Diamond Detector, Plastic Scintillator, and Set of Activation Detectors
The paper considers and compares methods for obtaining spectra of fast neutrons using detectors based on a diamond sensor, an organic (plastic)...
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Raman spectroscopic and advanced signal processing analyses for real time standoff detection and identification of explosives
Laser Raman spectroscopy is a powerful instrument commonly used for detection of bulk and trace amounts of explosives. The work carried out in this...
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Visualizing Ultrasound Sources Using Signal Time Reversal in the Particle Dynamics Model
A method is proposed for solving the inverse problem of reconstructing acoustic wave sources from field measurements on some surface using wavefront...
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Long dynamic range spread spectrum optical domain reflectometer
The performance of an optical time domain reflectometer (OTDR) is significantly improved using spread spectrum technology. The concept of spread...
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Enhanced spectrum slicing: wavelength division multiplexing approach for mitigating atmospheric attenuation in optical communication
Over last decades, the free space optics ( FSO) emerged as most prominent way of communication over radio frequency communication and microwave...
