Signal processing method, device and system for adaptive decision feedback equalization

A decision feedback equalization and signal processing technology, applied in the field of signal transmission, can solve the problems of increased power consumption, worsened system energy consumption, and data attenuation that cannot be ignored.

Active Publication Date: 2021-05-11
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

In addition, for high-speed serial communication applications, when the data attenuation caused by signal reflecti...

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  • Signal processing method, device and system for adaptive decision feedback equalization
  • Signal processing method, device and system for adaptive decision feedback equalization
  • Signal processing method, device and system for adaptive decision feedback equalization

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Embodiment Construction

[0058] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0059] It should be understood, however, that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the invention. It may be evident, however, that one or more embodiments may be practiced without these specific details. In addition, in the following description, descriptions of known technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

[0060] The terminology used herein is for the purpose of describing particular embodiments only, and is not intended to b...

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Abstract

The invention discloses a self-adaptive decision feedback equalization signal processing method applied to a filter. The method comprises the following steps: carrying out equalization operation on an input signal to obtain an attenuation signal; sampling the attenuation signal according to a preset feedback order and a preset feedback coefficient to obtain an error signal and a data sampling signal; performing serial-to-parallel conversion on the error signal and the data sampling signal to obtain an m-bit error signal and an m-bit data sampling signal of parallel data; counting the m-bit error signals, adjusting a preset feedback order according to a counting and counting result, and repeating the adjustment operation until the preset feedback order is constant; obtaining the response of the filter to the attenuation signal and an expected value, subtracting the response from the expected value to obtain an error value, adjusting a preset feedback coefficient according to the error value, sampling again, and repeating the adjustment operation until the error value is converged; and outputting a constant preset feedback order and a preset feedback coefficient after error value convergence. The invention also discloses an adaptive decision feedback equalization signal processing device and system.

Description

technical field [0001] The present invention relates to the technical field of signal transmission, in particular to a signal processing method, device and system for adaptive decision feedback equalization. Background technique [0002] With the continuous improvement of mainstream communication methods in modern society, people pursue the improvement of quality of life and many high-speed multimedia technologies have been born, resulting in a rapid increase in the amount of communication data. The data transmission bandwidth that high-speed communication can achieve has become a bottleneck that limits the overall performance of the system. There are two basic data transmission methods in wired communication: serial transmission and parallel transmission. Parallel transmission realizes synchronous signal transmission through multiple transmission lines, but this method requires more transmission media and complex board-level wiring, and the coupling and interference between...

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Application Information

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IPC IPC(8): H04L25/03
CPCH04L25/03885
Inventor 赵建中蔡晨周玉梅
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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