Modulace signálu a jejich vliv na spektrum signálu

Abstract

This work is engaged in problems of analog and digital modulations used for transmition signals over transmission channels. Contains detail analyse of theoretical aspects primary modulations and their theoretical requests for bandwidth od modulated signals and theory of selected signals used as modulating signals. Defines criteria applied to examine bandwidth of signals. There are implementations of modulations in practical part. They are implemented in prefessional computing program MATLAB. There are created blocs of schematics for individual modulations in Simulink. Simulink is program simulating dynamical systems.