METHOD OF MODULATING SIGNAL PARAMETERS Russian patent published in 2024 - IPC H04L27/20 H03M13/00 

FIELD: wireless communication systems.

SUBSTANCE: invention relates to wireless communication systems, specifically to digital communication technology, and can be used to transmit digital information over communication channels. Method of modulating signal parameters is that digital signals are emitted by a transmitter through n parallel output stages, to each of which one of n frequencies is received from the frequency synthesizer for emitting messages from a plurality of digital messages. Radiation occurs through an antenna unit containing n antennas, each of which is connected to a digital information source. Transmitter is equipped with a frequency generator and phase-shifting devices associated with it. Output register of the digital information source is conditionally divided into a number of series-connected K n-bit units, each of which is connected to the corresponding phase-shifting device. Information from the n-bit units is transmitted to the antenna unit, each output stage of which emits signals at a given frequency coming to it from a frequency generator through a corresponding phase-shifting device. Thus, identical initial phases are provided for all frequencies of each K n-bit unit. Each K_i unit contains the number of bits defined as N/n, where N is the capacity of the output register, n is the number of generator frequencies, which coincides with the number of bits of each K_i unit. All K_i n-bit units have the same amplitude of output pulses, and all similar bits of each K_i unit are connected to each other, providing summation of phases of output signals of each of them at one of the frequencies corresponding to a certain bit of the output register. Alphabet of the transmitted messages is formed as a set B=mⁿ, where m is the possible number of phases obtained in each of the n output stages as a result of summation of the initial phases of signals of similar bits of each K_i unit at any of n frequencies.

EFFECT: high noise immunity of the system and simple modulation pattern of radio signals.

1 cl, 1 dwg, 1 tbl