A signal processor for providing a continuous raised cosine output signal having no jitter or intersymbol-interference and with controllable main and side lobes. An NRZ input signal is converted to a double interval raised cosine pulse signal having an amplitude normalized to 1.0. Another single interval...http://www.google.se/patents/US4644565?utm_source=gb-gplus-sharePatent US4644565 - Superposed quadrature modulated baseband signal processor