Využití postranních pásem u digitálních modulací

Abstract

The purpose of this work is to get acquainted with types of digital modulations, their basic distribution and parameters. Further task is to understand the term side band, to apprise with parameters, which define this term. In this part we get acquainted with modulations that are used in ADSL system. Last part of the work deals with practical measuring in ADSL system in order to simulate data transfer and to obtain particular measured values of transferred bites using the multitone modulation. From these values then construct the constellation diagram and compare the data transfer with other modulation methods.