Results 211 to 220 of about 70,937 (255)

Estimation of the signal-to-noise ratio (SNR) in communication simulation

IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond, 2003
The authors discuss the estimation of signal-to-noise ratio (SNR), with a view to its implementation in simulation. They extend previous results (see W.H. Tranter and M.D. Turner, 1977; and M.D. Turner et al., 1977) for the distribution of the SNR for an idealized channel to the linear channel. They also place the problem within a Hilbert space context,
M.C. Jeruchim, R.J. Wolfe
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Deep Learning Based Prediction of Signal-to-Noise Ratio (SNR) for LTE and 5G Systems

2020 8th International Conference on Wireless Networks and Mobile Communications (WINCOM), 2020
Deep learning (DL) is applied to predict signal-to-noise ratio (SNR) in de facto LTE and 5G systems in a non-data-aided (NDA) manner. Various channel conditions and impairments are considered, including modulation types, path delays, and Doppler shifts. Both time-domain and frequency-domain signal grids are evaluated as inputs for SNR prediction.
Thinh Ngo, Brian Todd Kelley, Paul Rad
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The signal-to-noise ratio (SNR) required for the estimation of foliar biochemical concentrations

International Journal of Remote Sensing, 1996
Abstract This paper compares estimates of the signal-to-noise ratio(SNR) required by imaging spectrometers for the estimation of foliar biochemical concentrations and the SNR currently achieved by ...
G. M. SMITH, P. J. CURRAN
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Signal-to-noise ratio (SNR) as a measure of reproducibility: design, estimation, and application

Health Services and Outcomes Research Methodology, 2008
This paper proposes the use of signal-to-noise ratio (SNR) as another index of a measurement’s reproducibility. We derive its maximum likelihood estimation and discuss confidence interval construction within the framework of the one-way random effect model.
N. Elkum, M. M. Shoukri
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Signal-To-Noise Ratio (SNR) And Sensitivity Equations For An Enclosed Radiothermometer

SPIE Proceedings, 1985
A radiothermometer for surface temperature measurement is designed with an enclosed cham-ber to eliminate any uncontrolled circumferential irradiation. This paper addresses the signal-to-noise ratio (SNR) and the noise-equivalent temperature difference (NETD) equations in terms of system parameters.
Lixin Chen, Bing T. Yang
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Signal-To-Noise Ratio (SNR) For Reliable Data Recording

SPIE Proceedings, 1987
Due to the nonlinear nature of the thermal optical recording process and the inherent difficulty in tracking and maintaining focus of a submicron-sized light spot, peak-shift values of 40 to 50% are likely to occur during the use of an optical data storage system.
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Evaluation of signal to noise ratio (SNR) of log periodic dipole antenna (LPDA)

2013 IEEE Business Engineering and Industrial Applications Colloquium (BEIAC), 2013
Logarithmic periodic dipole antenna (LPDA) was constructed for monitoring Sun in the range of (45 -870) MHz to precisely match the solar monitoring requirements. In our work, we choose rod aluminium's type as a conductor with nineteenth (19) elements of different sizes.
Z.S. Hamidi, N.N.M. Shariff
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Series analysis of Signal to Noise Ratio (SNR) in active mode-locked lasers

2007 IFIP International Conference on Wireless and Optical Communications Networks, 2007
Analysis of active mode-locked laser under the influence of asynchronous spontaneous emission (ASE) noise by using series approach is presented in this paper. Transient evolution and steady state of the mode-locked pulse are studied in details by the use of mathematical series approximating the generated pulse.
Huy Quoc Lam, P. Shum, Songnian Fu, null Le Nguyen Binh, Y.D. Gong   +4 more
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Analytical model for the calculation of the optical signal-to- noise ratio (SNR) of WDM EDFA chains

Optical and Quantum Electronics, 1999
A new, simplified analytical model for the calculation of the signal-to-noise ratio (SNR) in multiwavelength erbium-doped fibre amplifier (EDFA) cascades is presented. Comparisons with numerical results give excellent agreement, confirming the validity of this model and its significance for optimising system parameters.
R. Schober, P. Bayvel, F. Di Pasquale
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Enhancement of signal to noise ratio using bispectrum a quantitative analysis for very low SNR

2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005
Bispectrum has been widely used to enhance the SNR. This is based on the assumption that the HOS properties of the signal of interest are different to the HOS properties of. the noise. In the present work, we consider the use of bispectrum techniques when repeated measurements are made of a deterministic signal embedded in random noise where SNR is in ...
P. Yeganeh, M.H. Moradi, A. Reshad
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