Discussion on non-preamble burst mode optical receiver;

Based on the Euclidean distance in frequency domain,the frame detection algorithm considers the periodicity of the downlink preamble in time domain,thus efficiently improves the robustness of the detection procedure.

Among all frequency estimation techniques, the methods based on preamble with multiple periodic signal structure in frame are simple but effective.

Then,an integer frequency offset estimation algorithm using the differentiated sequence of the preamble is proposed,which is robust to the remaining timing offset.

A full digital preamble-less burst-mode PSK receiver;