Device and method for digital vestigial sideband modulation

摘要

A digital signal processing device and method for vestigial sideband (VSB) modulation of a digital signal. A 2n-ary digital signal di is provided to a baseband shaping filter which samples the signal to provide a baseband signal which has real and imaginary portions Re(Sbb(kT)) and Im(Sbb(kT)), where <IMAGE> The VSB signal is provided with perfect sideband suppression without using analog filters. The digital signal processing device and method is characterized by requiring minimal bandwidth in the shaping filter.