PULSE SHAPING DURING BIPOLAR TO UNIPOLAR CONVERSION

摘要

A method and associated transmission system, signal processor and communications system for converting a signal from a bipolar signal Into a unipolar signal, the method involving applying a pulse shaping filter to the bipolar signal to produce a pulse shaped bipolar signal; and subsequently transforming the negative values of the pulse shaped bipolar signal to produce the unipolar signal. Preferably, the bipolar signal and/or the shaped bipolar signal and/or the unipolar signal have a plurality of frames, and the frames have at least one guard interval, wherein the guard interval(s) include a prefix provided before or at the start of at least one frame and/or a suffix provided after or at the end of at least one frame.