Feedback adjustable constellation de-mapper

专利名称：Feedback adjustable constellation de-mapper

发明人：Dayou Qian,Jianjun Yu,Ting Wang申请号：US12372378申请日：20090217公开号：US08184731B2公开日：20120522

专利附图：

摘要：A system and method to adjust the symbol constellation used to de-map asignal in an optical coherent communications system. A feedback de-mapper adjustmentmodule is configured to compare average Error Vector Magnitude and Bit Error Ratio to

a pre-defined table to determine when a constellation de-mapper mismatch occurs. Thefeedback de-mapper adjustment module then rotates the de-mapper constellation inorder to compensate for phase drift.

申请人：Dayou Qian,Jianjun Yu,Ting Wang

地址：Plainsboro NJ US,Princeton NJ US,West Windsor NJ US

国籍：US,US,US

代理人：James Bitetto,Joseph Kolodka

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