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S2NSignal-to-Noise (electrical engineering ratio)
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The scientists also found that the act of controlling the computer-brain interface led to an increased classification accuracy, which corresponded with improvements in the whole-brain signal-to-noise ratio.
In spite of the high performance lock-in amplifier used as a second stage signal-amplifier, the signal-to-noise ratio must be optimized for the output of the photocurrent measuring preamplifier.
The result is a high signal-to-noise ratio that, in the case of CDs, means a much wider dynamic range -- the difference between loud music and clearly heard, noise-free soft music.
For analog televisions, the XC5000 meets an unweighted signal-to-noise ratio of 54dB and a noise figure better than 6dB.
The program has also developed a novel signal-to-noise measurement algorithm based on Gaussian mixture estimation procedures.
The resolution and accuracy of the converter is limited by the signal-to-noise ratio (SNR).
Improvements include a large increase in spatial resolution even at large tip-substrate separation; increase in the signal-to-noise ratio by more than an order of magnitude; substantial decrease in non-local contributions to the total capacitance; elimination of signal variation from changes in materials contrast and geometry due to wear of the probe tip; and the reduction or elimination of artifacts arising from long-range sampling of substrate topography.
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