Single sideband and quadrature multiplexed continuous phase modulation

摘要: A class of bandwidth reduction techniques are used develop a broad modulation types collectively called SSB-FM. These signals can be to construct communication systems that provide bandwidth-normalized performance gains 10 dB or more when compared popular prior art methods. An aspect the invention involves mapping trellis paths in complex signal space onto corresponding real-valued with desirable spectral properties. The map continuous phase modulated (CPM) simpler amplitude-modulated having double channel capacity CPM signals. Multi-amplitude signaling and frequency division multiplexing may also incorporated further accommodate information per symbol.