FIELD: radio engineering.
SUBSTANCE: signals are transmitted on carrier signals shifted relative to each other. Here note that circular polarisation of appropriate resultant polarisation-multiplexed signal occurs. Note here that every second polarisation-multiplexed signal can be transmitted with opposite-direction circular polarisation. To reduce interferences, in case one polarisation-multiplexed channel transits only one data modulated signal, polarisation plane of aforesaid signal in every second channel (K2) is turned through 45°. In compliance with one version, polarisation-multiplexed signals are formed with their resultant polarisation orthogonal to each other in adjacent channels.
EFFECT: higher noise immunity.
11 cl, 13 dwg
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