DVB-C2 generation and reception

摘要

The present disclosure relates to DVB-C2 generation apparatus and methods for generating DVB-C2 transmission signals (s(t)) from DVB-C2 symbols, each comprising a plurality of DVB-C2 subcarriers, for transmission in a multi-carrier data transmission system. An embodiment of the proposed apparatus and method is adapted for multiplying the DVB-C2 symbols with a multiplication factor (M) for compensating common phase rotations of the DVB-C2 subcarriers of said DVB-C2 symbol, which could be introduced by mixing said complex time-domain samples of said DVB-C2 symbol from a baseband frequency up to a passband frequency by use of a mixing frequency ( f c ), for inverse discrete Fourier transforming a DVB-C2 symbol into complex time-domain samples, and for mixing said complex time-domain samples of said DVB-C2 symbol from a baseband frequency up to a passband frequency by use of said mixing frequency ( f c ) to obtain said DVB-C2 transmission signal (s(t)) .