FIELD: physics; radio.
SUBSTANCE: present invention relates to wireless communication and can be used for transmitting discrete messages using signals with direct spectrum broadening. On the transmitting side, the device contains a source of discrete messages, a unit for non-systematic division, first pseudorandom sequence generator, Adamer-Walsh function generator, carrier frequency generator, clock frequency generator, six multipliers, 90° phase shifter, an adder and a power amplifier. On the receiving side the device contains an amplifier, synchronisation unit, three band-pass filter units, 90° phase shifter, pseudorandom sequence generator, five multipliers, carrier frequency generator and a demodulator.
EFFECT: increased message transmission rate and structural security of the device for transmitting and receiving discrete messages using signals with direct spectrum broadening, with invariance properties to frequency-phase perturbations, arising in a communication channel.
5 dwg
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Authors
Dates
2009-06-10—Published
2008-03-28—Filed