| 摘要 |
FIELD: physics; radio. ^ SUBSTANCE: present invention relates to radio engineering and can be used in information transmission systems. The method is characterised by that, there is periodic generation of quadrature and in-phase components of the composite signal, from which, depending on the bit sequence of the information sequence, modulation code sequences for sin and cosine channels are generated. Received sequences are converted into a bipolar code and quadrature components of the sub-carrier frequency are phase modulated. Phase modulated oscillations at sub-carrier frequency transmitted to the quadrature modulator of carrier frequency, the output signals of which are added. ^ EFFECT: increased noise immunity of transmitting binary information using composite signals. ^ 5 cl, 1 dwg, 1 tbl |
