A digital correlator used in a receiving component of a spread spectrum communication system of a direct sequence modulation type is disclosed. A polarity of an input baseband signal is controlled by being inverted or not inverted according to a polarity of a spreading code signal by an amplifier, and...http://www.google.fr/patents/US5610939?utm_source=gb-gplus-shareBrevet US5610939 - Signal processing circuit for spread spectrum communications
Signal processing circuit for spread spectrum communications
