High spectral efficiency data communications system using encoded sinusoidal waveforms

作者: Schultze Torsten

DOI:

关键词: Range (statistics)ModulationPhysicsEncoding (memory)AcousticsCommunications systemWaveformDigital dataPower (physics)Phase angle

摘要: A system and method for waveform modulation includes encoding input digital data at selected phase angles of an unmodulated sinusoidal waveform. The selectively reducing a power the in accordance with bit values so as to respectively define first, second, third fourth notches modulated An encoded analog is then generated from representation performed that energies associated first are balanced second also balanced. Each corresponds cumulative difference between over angle range subtended by one notches.