Results 331 to 340 of about 1,515,695 (366)
Some of the next articles are maybe not open access.
SIGNAL-TO-NOISE RATIO IN STOCHASTIC RESONANCE
Modern Physics Letters B, 1996We solve the Fokker-Planck equation for an overdamped Brownian particle in a periodically forced bistable potential by means of a path integral method, obtaining the propagators in the steepest-descent (small-noise) approximation. We compute the long-times asymptotic probability distribution, the asymptotic correlation functions, and the time-averaged
C. B. Briozzo +3 more
openaire +2 more sources
Signal-to-noise ratio in Fourier spectroscopy
Applied Optics, 1977Calculations of the SNR obtainable with a Fourier transform spectrometer as well as that obtainable with a photometer or scanning device are presented. It is shown that the SNR obtained with a Fourier spectrometer is (N/8)(1/2) greater than that obtained with a scanning device (where N is the desired number of spectral elements scanned).
openaire +3 more sources
Is there a relationship between peak-signal-to-noise ratio and structural similarity index measure?
IET Image Processing, 2013In this study, the authors analyse two well-known image quality metrics, peak-signal-to-noise ratio (PSNR) as well as structural similarity index measure (SSIM), and the authors derive an analytical relationship between them which works for some kinds of
Alain Horé, D. Ziou
semanticscholar +1 more source
Interference and Signal-to-Noise-Ratio
2007In a wireless network, a signal sent from one node to another suffers from physical effects. It will be attenuated, where the amount of loss depends on the physical medium it passes through, the distance it travels, and many other influences. The signal cannot be decoded the signal if it is too weak at the receiver.
openaire +2 more sources
Signal-to-noise ratio enhancement of silicon nanowires biosensor with rolling circle amplification.
Nano letters (Print), 2013Herein, we describe a novel approach for rapid, label-free and specific DNA detection by applying rolling circle amplification (RCA) based on silicon nanowire field-effect transistor (SiNW-FET) for the first time.
A. Gao +7 more
semanticscholar +1 more source
Optimising signal-to-noise ratio
1990Electrical noise and interfering signals contain a random mixture of all frequencies, whereas the evoked potential only contains selected frequencies. The objective in filtering is to remove noise which does not overlap the signal by blocking it from entering the computer system (Fig. 73).
openaire +2 more sources
Signal-to-Noise Ratio in Confocal Microscopes
2006Strictly, to obtain true confocal imaging the detector pinhole must be infinitesimally small, which would of course result in a vanishingly weak image signal. On the other hand, a very large pinhole degrades the confocal imaging effect. So in practice it is necessary to adopt some optimum diameter for the pinhole, which will depend on the design of the
Sheppard, Colin J. R. +3 more
openaire +2 more sources
PCM Data Reliability Monitoring Through Estimation of Signal-to-Noise Ratio
, 1968Reliability monitoring of digital pulse-code modulation (PCM) data in coherent transmission systems can be based upon online estimation of signal-to-noise ratio (SNR) at the receiver.
R. Gagliardi, C. Thomas
semanticscholar +1 more source
Signal-to-Noise Ratio: Tradability
2012In which market conditions is it possible that our trading system may not work well? The signal-to-noise ratio provides us with an answer.
openaire +2 more sources
, 2008
This work analyses the structure of the different contributions to the image spectrum derived by the three-dimensional Fourier decomposition of sea clutter time series measured by ordinary X-band marine radars. The goal of this investigation is to derive
J. Nieto-Borge +3 more
semanticscholar +1 more source
This work analyses the structure of the different contributions to the image spectrum derived by the three-dimensional Fourier decomposition of sea clutter time series measured by ordinary X-band marine radars. The goal of this investigation is to derive
J. Nieto-Borge +3 more
semanticscholar +1 more source