Method and device for phase modulation of a carrier wave, and application for detection of multi-level phase-encoded digital signals

摘要

A method for phase modulation of a carrier wave, its status to become Signals constituted by a wave of the modulated carrier frequency f C at this time t It involves generating a set of , where h is an integer, where to be. Modulation is a single phase signal and signal centered on time t 0 of positive characteristic duration w 0 in such a way as to directly produce a single sideband frequency spectrum. the phase of It corresponds to incrementing by The carrier wave may be electromagnetic or acoustic. The method includes, inter alia, for the transmission of a piece of binary information by single sideband phase encoding, for the generation of orthogonal single-sideband signals, for the detection of multi-level phase-encoded digital signals having a single sideband, a single It can be applied to in-phase and bi-phase transmission of phase-encoded binary signals with sidebands, and to mixed amplitude/phase single-sideband modulation.