Uncoupled multi-core fiber enhancing signal-to-noise ratio

Signal-to-Noise Ratio Estimation

Of the many measures that characterize the performance of a communication receiver, signal-to-noise ratio (SNR) is perhaps the most fundamental in that many of the other measures directly depend on its knowledge for their evaluation. In the design of receivers for autonomous operation, it is desirable that the estimation of SNR take place with as little known information as possible regarding o...

Digital Transmission : Carrier - to - Noise Ratio , Signal - to - Noise Ratio , and Modulat ion Error Ratio

Effect of signal to noise ratio on the speech perception ability of older adults

Background: Speech perception ability depends on auditory and extra-auditory elements. The signal-to-noise ratio (SNR) is an extra-auditory element that has an effect on the ability to normally follow speech and maintain a conversation. Speech in noise perception difficulty is a common complaint of the elderly. In this study, the importance of SNR magnitude as an extra-auditory effect on speech...

Volumetric spectral signal-to-noise ratio

1. Biomedical Imaging Group, EPFL, CH-1015 Lausanne VD, Switzerland. 2. Escuela Politecnica Superior, Univ. San Pablo-CEU, Campus Urb. Monteprincipe s/n, 28668 Boadilla del Monte, Madrid, Spain. 3. Lab. d'analyse ultrastructurale, Univ. de Lausanne, CH-1015 Lausanne VD, Switzerland. 4. Howard Hughes Medical Institute, Molecular & cell biology Dept. Univ. of California, Berkeley, Ca 94720, USA. ...

Optimising the signal-to-noise ratio

A long-term aim of current research into the frequency assignment problem is to identify features that would enable us to classify instances of the problem in terms of certain easily-computed parameters. Although there are good mathematical reasons why this may be impossible in full generality, experimental evidence is emerging which suggests that instances which occur in practice may be amenab...