ABSTRACT
But you perceive, my boy, that it is not so, and that facts, as usual, are very stubborn things, overruling all theories.
One of the key requirements in performing a successful experiment is a knowledge of signal characteristics. Signals contain vital information about the process under investigation. Much information can be extracted from them, provided the experimenter is aware of the methods that can be used and their limitations. In this chapter, the types of signals and their characteristics are identified. Formulations of the statistical parameters of signals are presented.
