公开(公告)号：US20080187082A1

公开(公告)日：2008-08-07

申请号：US11837301

申请日：2007-08-10

Applicant: Sudeep Bhoja ,  Vasudevan Parthasarathy ,  Vivek Telang

Inventor： Sudeep Bhoja ,  Vasudevan Parthasarathy ,  Vivek Telang

IPC: H04L7/00 ,  H04L25/00 ,  H04L25/40

CPC classification number: H04L7/0062

Abstract: Embodiments include a system for performing electronic dispersion compensation on an information-bearing signal transmitted over a communication channel. The system may include a channel identification module configured to receive a first digitized version of the information bearing signal and an equalized version of the information-bearing signal, and may be configured to determine an impulse response of the communication channel based thereon. The system may include a time varying phase detector configured to receive the equalized version of the information bearing signal, a second digitized version of the information-bearing signal, and the impulse response, and may be further configured to generate a reference wave based on the impulse response and the equalized version of the information-bearing signal. The time varying phase detector may be configured to generate a phase signal based on the reference wave and on an error signal determined from the reference wave and the second digitized version of the information-bearing signal.

Abstract translation: 实施例包括用于对通过通信信道发送的信息承载信号执行电子色散补偿的系统。 系统可以包括信道识别模块，其被配置为接收信息承载信号的第一数字化版本和信息承载信号的均衡版本，并且可以被配置为基于该信道识别模块来确定通信信道的脉冲响应。 系统可以包括时变相位检测器，其被配置为接收信息承载信号的均衡版本，信息承载信号的第二数字化版本和脉冲​​响应，并且还可以被配置为基于 脉冲响应和信息承载信号的均衡版本。 时变相位检测器可以被配置为基于参考波和从信息承载信号的参考波和第二数字化版本确定的误差信号来生成相位信号。