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Experimental optical fibre digital pulse-position modulation system

By N.M. Calvert, Martin J.N. Sibley and Rodney T. Unwin


Practical measurements on a digital PPM system handling 8Mbit/s PCM data show good correlation with theoretical results obtained from a computer model of the system. It is confirmed that there exists an optimum number of time slots which maximises the receiver sensitivity, and that a digital PPM system can offer an improvement of 4.2 dB over an equivalent binary PCM system when the fibre bandwidth is several times that required by PC

Topics: T1, TK
Publisher: Institution of Engineering and Technology
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