公开(公告)号：US20150236795A1

公开(公告)日：2015-08-20

申请号：US14699093

申请日：2015-04-29

Applicant: Juniper Networks, Inc.

Inventor： Christian Malouin ,  Theodore John Schmidt ,  Bo Zhang ,  Elias Simpson ,  Roberto Marcoccia

IPC: H04B10/61 ,  H04L27/227 ,  H04J14/06 ,  H04L7/00 ,  H04B10/40

CPC classification number: H04B10/6161 ,  H04B10/40 ,  H04B10/616 ,  H04B10/6166 ,  H04J14/06 ,  H04L7/0075 ,  H04L27/2273

Abstract: This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.

Abstract translation: 本公开描述了在相干接收机中采样电数据流的技术。 例如，模数转换器（ADC）以标称值为ADC接收的电数据流的符号速率的两倍或更大的采样速率对接收的电数据流进行采样。 数字滤波器从ADC接收数字数据流，并对数字数据流进行数字滤波，以低于采样速率且小于符号速率的两倍的有效采样速率输出滤波后的数字电子数据流，并且大于 或等于符号率。

公开(公告)号：US09967036B2

公开(公告)日：2018-05-08

申请号：US14699093

申请日：2015-04-29

Applicant: Juniper Networks, Inc.

Inventor： Christian Malouin ,  Theodore John Schmidt ,  Bo Zhang ,  Elias Simpson ,  Roberto Marcoccia

IPC: H04B10/61 ,  H04L7/00 ,  H04B10/40 ,  H04J14/06 ,  H04L27/227

CPC classification number: H04B10/6161 ,  H04B10/40 ,  H04B10/616 ,  H04B10/6166 ,  H04J14/06 ,  H04L7/0075 ,  H04L27/2273

Abstract: This disclosure describes techniques to sample electrical data streams in coherent receivers. For instance, an analog-to-digital converter (ADC) samples the received electrical data stream at a sampling rate that is nominally twice or greater than twice the symbol rate of the electrical data stream that the ADC receives. A digital filter receives the digital data stream from the ADC, and digitally filters the digital data streams to output a filtered digital electrical data stream at an effective sampling rate that is less than the sampling rate and less than twice the symbol rate, and greater than or equal to the symbol rate.