FIELD: physics; radio.
SUBSTANCE: present invention relates to wireless communication and can be used for transmitting discrete messages through phase modulation of carrier frequency using pseudorandom sequences. On the transmitting side the device contains a source of discrete messages, six multipliers, a pseudorandom sequence generator, an adder, a power amplifier, carrier frequency oscillator, non-systematic division unit and an Adamar-Walsh sequence generator. On the receiving side, the device contains an amplifier, first band-pass filter unit, second band-pass filter unit, a multiplier and a demodulator.
EFFECT: more efficient use of the spectrum and increased noise immunity with simplification of the receiving part at the same time.
6 dwg
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Authors
Dates
2009-06-10—Published
2008-02-27—Filed