Fig. 7From: Research on alleviating nonlinear problem by data feature extraction and fusion based on DFT-spreadSimulation setup of the CO-OFDM system. DAC Digital-to-analog converter; LPF Low pass filter; EDFA Erbium-doped fiber amplifier; ATT Attenuator; SSMF Standard single mode fiber; LO Local oscillator; OBPF Optical bandpass filter; PD Photodiode; ADC Analog to digital converterBack to article page