FIELD: wireless communication systems.
SUBSTANCE: result is provided due to the fact that when emitting digital signals through n output stages, one of n frequencies is transmitted to each of the cascades from the frequency synthesizer for broadcasting messages from a plurality of digital messages B through an antenna unit containing n antennas. Digital information source output register is conditionally divided into series of series-connected K n-bit units, voltage from the output of which in a given order is controlled by a switched voltage source, providing K! combinations of output voltages. Number of units is determined as Ki=N/n, where N is the capacity of the output register, n is the number of synthesizer frequencies. Each of the Ki n-bit units has its own amplitude of output pulses, and all the same bits of each of the Ki units are connected to each other, providing summation of output signals of each of them at one of frequencies, and are also connected to each of n output units of the transmitter. Plurality of signals B is formed as B=K!n!mn, where m is a possible number of amplitudes obtained in each of n output stages.
EFFECT: high noise-immunity of the system, wider message alphabet and simple radio signal modulation scheme.
1 cl, 1 dwg
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Authors
Dates
2024-06-21—Published
2023-08-04—Filed