It happens many people have no idea what Digital Signal Processing means, although they do hear more and more often these words, today. Considering the name, Digital Signal Processing, people are lead towards thinking this procedure deals with digital signals. No; Digital Signal Processing is a method of improving the quality of the analog signals, only. Indeed, the naming used (DSP) it is rather improper, because it relates to all types of digital processing. The methods, and the techniques used in DSP deal only with processing signals that are analog in nature. In the digital signals case, we can only compress, encrypt, and translate them to other digital formats; these (different) procedures do not require any DSP techniques. Using the DSP name when referring to digital signals causes confusion.

Let