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An efficient numerical approach for the power amplifier linearization

The non-linearization of certain devices for applications are undesirable and they occur in many electronic equipments for Telecommunications Systems. In our specific case they are present in the transmission of Digital TV signals strongly dependent of the RF power amplifiers. Due to the nonlinear behavior one becomes necessary to accomplish previous studies of the devices and circuits that carry through the linearization. The main focus of this paper besides the theory was the development of an experimental practical part, with the creation of a electronic prototype. This, together with the use of some numerical methods applied to the resources of the digital pre-distortion, permit us to set an efficient linearization of the TV signals. This process starts on the analog models and have nowadays a great development with the digital one.