发明申请
US20010019584A1 System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system 失效
多对收发器系统中的高速解码和ISI补偿的系统和方法

System and method for high-speed decoding and ISI compensation in a multi-pair transceiver system
摘要:
A method and a system for providing ISI compensation to an input signal in a bifurcated manner. ISI compensation is provided in two stages, a first stage compensates ISI components induced by characteristics of a transmitter's partial response pulse shaping filter, a second stage compensates ISI components induced by characteristics of a multi-pair transmission channel. First stage ISI compensation is performed in an inverse response filter having a characteristic feedback gain factor K, during system start-up. Second stage ISI compensation is performed by a single DFE in combination with a MDFE operating on tentative decisions output from a Viterbi decoder. As the DFE of the second stage reaches convergence, the feedback gain factor K of the first stage is ramped to zero.
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