Nonlinear processing of Manchester data corrupted by multiplicative noise

Multiplicative noise, also referred to as signal-dependent noise, occurs with a number of detectors used in communications. Most notably, in the area of optical communications, avalanche photodiodes (APDs) and optically amplified detectors in general, exhibit such noise. In such cases, encoding the binary data with a Manchester format and decoding using a weighted processing of the two bit halves allows a large improvement in the bit error rate.