MULTI ACCESS RADIO COMMUNICATION METHOD Russian patent published in 2008 - IPC H04B7/204 

FIELD: radio communications, possible use for developing multi-access systems which use noise-like signals.

SUBSTANCE: in accordance to the invention, at transmitting side, using two different informational series in form of bipolar impulses, two different pseudo-random series, on basis of carrier oscillation, modulated by a result of multiplication of impulses of second informational series with second pseudo-random series, broadband phase-manipulated signal is formed, elements of which are transferred into communication channel on orthogonal polarizations according to first pseudo-random series, at receiving side a copy of first pseudo-random series or its inversion is used for matching polarization states of carrier signal elements with polarization states of useful signal which carries symbols of first informational series, result of multiplication of a copy of second pseudo-random series and a copy of carrier oscillation are used during correlation processing of useful signal to extract informational symbols of second informational series, meander type video impulses are generated with period equal to duration of informational impulses, a result of their multiplication with a copy of second pseudo-random series is used to modulate a copy of carrier oscillation, the result of modulation is used during correlation processing of useful signal in supporting channels which correspond to signal channels, a part of signal-like interference, correlated with useful signal in first or second signal channels is extracted and subtracted from output effect of corresponding signal channels, informational symbols of first and second information series are extracted from resulting signal.

EFFECT: increased efficiency of radio-frequency spectrum usage, reduced influence of internal system interferences in multi-access systems, improved electromagnetic compatibility with narrowband information transfer devices and reduced degree of effect of cross-polarized interferences.

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