Quantizing : Quantizing is the process of dividing an analog input signal into a string of discrete outputs, each of constant amplitude. There are three aspects of quantizing -
1. Sampling rate : The number of samples per second.
2. Aperture time : The reciprocal of the sampling rate , defined as the number of second per sample.
3. Coding error (amplitude uncertainty) : The difference between the conditional signal y = f(t) and the quantized signal fig : (a). This difference is measured