Geometrical Model of Communication

There are different classes of communication channels with variable parameters. Nowadays the following models of such communication channels are known: 1. With casually changing signal phase. 2. With smooth (general) fading. 3. With multiplicative noise error. 4. With selective fading. Each class is characterized by its own model that makes it difficult to generally analyze a communication channel with variable parameters. In this connection the necessity arises to construct a universal model for identification of channels of all classes. A universal geometrical model of a communication channel with variable parameters, including the models mentioned above, is offered.