Chaos Theory Applied to Communications -- Part I: Chaos Generators

In the last decade, numerous investigations over chaos theory applied had been published. Many areas are covered by these documents including communications, control, and theory of circuits amongst others. A wide range of applications have been proposed and each day there are more specialists in this matter. In this way, this document expects to be a summary of some of the most relevant characteristics of chaos generators which could be applied accordingly with the necessities of different areas. Through numerical analysis and simulations is showed a simple method for manipulations for this kind of systems and brings some relevant differences between three dissimilar chaotic systems for potential applications and it is the first of a group of three documents on chaos theory applied in communications.