FIELD: radio engineering.
SUBSTANCE: invention relates to radio engineering and can be used in discrete radio communication channels used both for power-stealthy and for highly reliable transmission of messages. Power stealthiness of a radio communication system is caused by the base of the signal, which is determined by the ratio of the bandwidth occupied by a broadband signal spectrum at the output of the transmitter to the bandwidth occupied by the spectrum of an information signal at the input of the manipulator. Broadband signal is formed by a series addition of subcarriers along the axis of frequencies with a relative phase modulation of initial phases of those subcarriers by binary quasi-random sequences. Each broadband signal is individual for each symbol of their total number of N in the alphabet. Detection on each subcarrier is performed individually with simultaneous accumulation of the detection results in N adders with compensation of known at the receiving side of the radio line difference values of initial phases of all adjacent subcarriers for each symbol of the total number of symbols in the alphabet N. Highest level of accumulated in the n-th adder voltage in comparison with levels of voltages accumulated in other adders is the criterion for taking a decision on receiving the n-th symbol.
EFFECT: high power stealthiness of transmitting discrete messages with low requirements to mutual synchronization by time of transmitting and receiving devices.
4 cl, 1 tbl, 7 dwg
