| 摘要 |
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 |
