Fig. 2

Schematic illustration of the LDSP in the experiments. a Schematic of the experimental optical fiber long-haul transmission system, including the transmitter, channel, and receiver. b The blocked data processing with LDSP. The received signals, sampling from the oscilloscope, is conducted block-by-block with the same LDSP structure. c The structure of the forward pass, backward pass, and parameter update within LDSP. d The employed loss function during the training and tracking procedure