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Add noise for clearer signals – Electronics Weekly
Adding just the right amount of noise can improve signal to noise ratio in certain non-linear systems. The effect is known as ‘stochastic resonance’, where
The effect is known as stochastic resonance, where mixing of noise and signal in the system non-linearity can sometimes push a previously buried signal just above the noise floor.
Now researchers at Penn State University have exploited it to improve the sensitivity of a custom FET light sensor based on the two-dimensional material molybdenum disulfide a direct bandgap semiconductor with high quantum yield and also the sensitivity of a commercial silicon photo-diode.
Stochastic resonance is a p…
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