Sampling: take x value--digital time axis
Quantization: take the y value -- digitize the magnitude axis
Encoding: store the fetched xy value in format
The so-called sampling is to digitize the signal only on the time axis.
Quantization refers to the digitization of a signal on the magnitude axis .
Each quantization is a sample, and storing so many samples is called encoding .
The so-called encoding is to record the sampled and quantized digital data according to a certain format, such as sequential storage or compression
storage, etc.
