Results 11 to 20 of about 168,550 (300)
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACTAccurate quantification of the signal-to-noise ratio (SNR) of a given observational phenomenon is central to associated calculations of sensitivity, yield, completeness, and occurrence rate. Within the field of exoplanets, the SNR of a transit has been widely assumed to be the formula that one would obtain by assuming a boxcar light curve ...
Kipping, David
openaire +3 more sources
Fibre optic fizeau intererometer for optical coherence tomography [PDF]
, 2006 The aim of the project was to develop the Fizeau interferometer configuration to take advantage of the benefits derived from its “downlead insensitivity” to temperature and polarisation fading.
Casaubieilh, P.
core +7 more sources
SNR-EQ-JSCC: Joint Source-Channel Coding With SNR-Based Embedding and Query [PDF]
IEEE Wireless Communications LettersCoping with the impact of dynamic channels is a critical issue in joint source-channel coding (JSCC)-based semantic communication systems. In this paper, we propose a lightweight channel-adaptive semantic coding architecture called SNR-EQ-JSCC. It is built upon the generic Transformer model and achieves channel adaptation (CA) by Embedding the signal ...
Hongwei Zhang 0006, Meixia Tao
core +6 more sources
The First Fermi-LAT SNR Catalog: SNR and Cosmic Ray Implications [PDF]
Proceedings of The 34th International Cosmic Ray Conference — PoS(ICRC2015), 2016 8 pages, 10 figures; in Proceedings of the 34th International Cosmic Ray Conference (ICRC 2015), The Hague (The Netherlands)
Brandt, T.J. +4 more
openaire +2 more sources
Atom Indonesia, 2023 Parameters for determining computed tomography (CT) image quality include noise and low-contrast detectability. Studies on low-contrast detectability using the AAPM CT performance phantom have several limitations, such as the absence of quantitative ...
E. Setiawati +3 more
doaj +1 more source
Single-User Performance of Uplink DS-CDMA using Relay-Assisted Diversity [PDF]
, 2006 In a wireless system with distributed mobile users, several mobile users may cooperate with each other in order to achieve the transmit diversity. In this contribution we investigate the single-user performance of an uplink direct-sequence code-division ...
Fang, W, Yang, L-L, Hanzo, L
core +2 more sources
Intravoxel Incoherent Motion Quantification Dependent on Measurement SNR and Tissue Perfusion: A Simulation Study [PDF]
Journal of Biomedical Physics and Engineering, 2023 Background: The intravoxel incoherent motion (IVIM) model extracts both functional and structural information of a tissue using motion-sensitizing gradients.Objective: The Objective of the present work is to investigate the impact of signal to noise ...
Sam Sharifzadeh Javidi +2 more
doaj +1 more source
Effective-SNR estimation for wireless sensor network using Kalman filter [PDF]
, 2013 In many Wireless Sensor Network (WSN) applications, the availability of a simple yet accurate estimation of the RF channel quality is vital. However, due to measurement noise and fading effects, it is usually estimated through probe or learning based ...
Dai, Xuewu +6 more
core +1 more source
SNR-based dynamic statistical threshold detection of FBG spectral peaks
, 2022 This paper targets a dynamic statistical threshold detection algorithm of fiber Bragg grating (FBG) spectral peaks at the presence of changing Signal-to-Noise Ratio (SNR) in an optical fiber of a sensing application.
Ivan Glesk (12495466) +1 more
core +1 more source
Dual-Energy Spectral Computed Tomography: Comparing True and Virtual Non Contrast Enhanced Images
Measurement Science Review, 2022 Spectral computed tomography (CT) imaging is one of several image reconstruction techniques based on the use of dual-layer CT. The intensity and attenuation of the radiation are measured in relation to different wavelengths, and such a procedure results ...
Širůčková Kateřina +4 more
doaj +1 more source