FIELD: radio engineering and communications.
SUBSTANCE: invention relates to radio communication and can be used in wireless access systems, land mobile and satellite communication, designed to operate in conditions of restrictions on dedicated frequency resource. Transmitter with coherent frequency-code division of channels and with high structural security of transmitted signals includes, in particular, a coherent frequency grid generator, M+1 information modules, M+1 phase changers per π/2, M+1 band-pass filters of information modules, an adder of signals of information modules and a band-pass filter of a group signal, as well as corresponding connections between them.
EFFECT: considerable improvement of spectral efficiency of the communication system while ensuring high structural security of transmitted signals.
1 cl, 3 dwg
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