Modulação para rádio digital utilizando a amplitude de autocorrelação de códigos PN para transporte da informação.
Fabrício de Araújo Carvalho, Fernando Walter
Evento: XXX Simpósio Brasileiro de Telecomunicações (SBrT2012)
Keywords: Digital Radio Broadcasting Spectral Efficiency Pseudo-random codes CDMA PWM.
AbstractThe frequency bands used in mobile communications are allocated according to the type of application. With the need for more channels, the frequency spectrum has become a scarce natural resource. This study shows the results of a proposed modulation using the variation of the autocorrelation of pseudo-random codes to carry information. The work also presents the generation of multiple orthogonal axes to increase the bit rate and in this way improve the Channel efficiency.