BIT ERROR RATE MONITORING METHOD AND DEVICE

摘要

The present application discloses a method of bit error rate (BER) monitoring a signal and an apparatus for implementing the method. The method includes the steps of asynchronously sampling the amplitude of the signal to be BER monitored to obtain a plurality of sampled values, and determining at least one of, a proportion of the sample values falling above an upper amplitude threshold, and a proportion of the sample values falling below a lower amplitude threshold, to derive a BER for the monitored signal.