Basic concepts of signal processing

Resolution of analog-to-digital converters. The resolution of an ADC is defined as the logarithm (base 2) of the number of discrete steps an analog-to-digital converter can produce. It is measured in bits. 

If this measure is not taken the effective resolution of the ADC decreases in case of low level signals. 

Usually the signal coming from one single mass will last about 1 msec. In order to get a good representation of this signal part it would be necessary to get about 20 

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