Inspec keywords: equalisers; least mean squares methods; error statistics; pulse amplitude modulation

Other keywords: low-loss Megtron 6 electrical backplane; bit rate 42.8 Gbit/s; four-level pulse amplitude modulated data; early-late gate timing recovery; PAM-4 data transmission; bit error rate performance; serial transmission rate; finite-impulse-response-based least-mean-squares equaliser

Subjects: Modulation and coding methods; Communication channel equalisation and identification; Interpolation and function approximation (numerical analysis); Other topics in statistics