Sinusoidal phase modulation method and system

Pulse or digital communications – Repeaters – Testing

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375200, 375202, 375308, 370206, 370209, 455420, 455522, H04B 1500

Patent

active

058223622

ABSTRACT:
A system which phase modulates a carrier to produce a carrier signal which transitions in phase between predetermined phase states as a function of the data, wherein a rate at which the carrier signal changes phase during a transition between the predetermined phase states varies substantially sinusoidally. The phase modulation provides a constant amplitude modulated waveform having low side lobes. Such modulation method preserves the high noise tolerance capabilities associated with FH systems and the high data throughput capabilities of DS systems.

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