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COMBINED AMPLITUDE-TIME MODULATION AND PHASE MODULATION.
COMBINED AMPLITUDE-TIME MODULATION AND PHASE MODULATION.
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机译:功放时间调制和相位调制相结合。
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摘要
A method for generating a compound signal wave with one or more substantially sinusoidal waveform(s) containing an encoded digital information combined with a variable phase changing waveform(s) producing a compound notched sinusoid waveform including at least an amplitude-time modulated sine wave and at least one phase modulated wave(s). Presence or absence of change to a wave's sinusoidal amplitude within a phase indicates a data value. These data values can be changed within a data cycle or packet. Reduced modulation distortion is exhibited by amplitude-time modulation techniques when compared to classical amplitude modulation techniques. This reduced distortion in a communications signal results in increased effective transmission lengths, reduced error rates, higher data rates, and improved data security.
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