Receiver adaptive equalization method and device
An adaptive equalization and receiver technology, applied in the field of signal transmission, can solve the problems of complex channel loss changes and poor signal quality at the receiving end, and achieve the effects of solving poor signal quality, increasing noise margin, and improving signal quality
Active Publication Date: 2019-12-03
ANALOGIX CHINA SEMICON +1
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[0007] Embodiments of the present invention provide an adaptive equalization method and device for a receiver, to at least solve the technical problem of poor signal quality at the receiving end caused by complex channel loss changes
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[0033] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0034] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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The invention discloses a self-adaptive balancing method and device for a receiver. The algorithm comprises the steps of obtaining first code pattern data and second code pattern data output by a clock data recovery circuit of the receiver, wherein the first code pattern data and the second code pattern data are extracted by the clock data recovery circuit from first way data and second way data, the first way data and the second way data are obtained through compensation of a linear balancer and a judgment feedback balancer of the receiver in sequence, and the bandwidth of the linear balancer is 1 / 4 of a rate of to-be-received data; determining compensation information according to the first code pattern data and the second code pattern data; and adjusting a judgment feedback balancing coefficient of the judgment feedback balancer according to the compensation information. According to the method and the device, the technical problem that the signal quality of a receiving end is low due to complicated loss change of a channel is solved.
Description
technical field [0001] The present invention relates to the field of signal transmission, in particular to an adaptive equalization method and device for a receiver. Background technique [0002] In the application of high-speed serial interface, the quality of the signal at the receiving end is seriously affected due to the medium loss and skin effect of the channel. In the prior art, the low-frequency and high-frequency attenuation of the signal by the channel is compensated by pre-emphasis at the transmitting end and equalization at the receiving end. Among them, the pre-emphasis at the sending end is an a priori method, which compensates the subsequent channel attenuation through pre-distortion; and the equalization at the receiving end is an a posteriori method, which performs corresponding compensation through known signal attenuation. [0003] figure 1 is a block diagram of a high-speed serial interface receiver circuit according to the related art, such as figure ...
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IPC IPC(8): H04L25/03H04B1/12
CPCH04B1/123H04L25/03885H04L25/03949
Inventor 巨浩
Owner ANALOGIX CHINA SEMICON