Spread=spectrum signal transmission method

摘要

The method involves combing several signals with a modulation signal. Each of the joined signals is an intermediate carrier frequency which is modulated by a base band signal. Each intermediate carrier frequency is different. Preferably, the base band signals are combined with the intermediate carrier frequencies using frequency division multiplexing in a transmitter (13) and a receiver (14). The FDM is based on the single side band modulation or demodulation.