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METHOD FOR TRANSMITTING ADDITIONAL DATA SIGNAL AND USEFUL DATA SIGNAL OVER OPTICAL LINES
METHOD FOR TRANSMITTING ADDITIONAL DATA SIGNAL AND USEFUL DATA SIGNAL OVER OPTICAL LINES
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机译：在光线上传输附加数据信号和有用数据信号的方法
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摘要
FIELD: additional and useful data transmission over optical networks. SUBSTANCE: additional data signals are transmitter over optical networks through same channel as useful data signal wherein additional data signal is converted into code sequences and the latter are superimposed with lower amplitude onto useful data signal. On receiving end additional data signal is obtained due to mutual correlation. EFFECT: provision for fitting additional and useful data signals. 12 cl, 3 dwg
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