Chapter 5: Signals and Noise. Signal to Noise Ratio Types of Noise Signal to Noise Ratio Enhancement Signal Averaging Filtering. Signal-Noise Ratio. The signal is what you are measuring that is the result of the presence of your analyte
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
S /N = 43:1
Has the property of Flicker noise
If we sum n measurements to obtain the ensemble average, the signal Si adds for each repetition.
The total signal Sn is given by
For the noise, the variance is additive (note STD is not additive). The total Variance is
The standard deviation, or the total rms noise, is
The S/N after n repetitions (S/N)n is then,