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1984
Journal Article
Titel
Bit error analysis in a multimode communication system with optical transmission
Abstract
Instruments for measuring error rates and error structures were developed to determine the transmission quality of the digital multimode experiment system of the Heinrich-Hertz-Institut in Berlin. The instruments enable in-service operation with pseudo-random sequencing or set data patterns. The results of more than 1400 hours of tests of high-rate switching devices, 12 repeaters and 32 km of fibre lines showed a mean error rate of 10-9 (excluding errors appearing in bursts). The error structure analysis showed bit errors to occur predominantly in the optical transmission lines.