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Non-linear pre-equalization device and method for G3-PLC power carrier line system

A G3-PLC, power carrier technology, applied in the distribution line transmission system, wired transmission system, transmission system and other directions, can solve the problems of increasing the complexity and difficulty of the receiving end, affecting the signal quality, etc.

Active Publication Date: 2022-01-18
HANGZHOU VANGO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This nonlinear distortion will seriously affect the signal quality and increase the complexity and difficulty of the receiving end

Method used

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  • Non-linear pre-equalization device and method for G3-PLC power carrier line system
  • Non-linear pre-equalization device and method for G3-PLC power carrier line system
  • Non-linear pre-equalization device and method for G3-PLC power carrier line system

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Embodiment Construction

[0045] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0046] The embodiment of the present application provides a nonlinear pre-equalization device and method for a G3-PLC power carrier line system, which can be applied to application scenarios such as remote data collection of meters, remote control of household appliances, and data analysis and processing of control systems: 1. Collect remote data collection of various meters; 2. Use G3-PLC to connect various household appliances, and then connect G3-PLC to the Internet to realize remote control; 3. Big data analysis and processing, G3-PLC can complete data collection, Analysis and processing, such as mathematical operations, data transmission, data conversion, sorting, table lookup, and bit manipulation, etc., and these data can be compared with reference values ​​stored in the memory to complete certain control operations. Data processing is often used on large c...

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PUM

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Abstract

The invention discloses a nonlinear pre-equalization device and method for a G3-PLC power carrier line system, and the method comprises the steps: step 1, carrying out the nonlinear pre-equalization of G3-PLC baseband data, and obtaining the pre-equalization data; step 2, converting the pre-equalization data into analog signals, and sending the analog signals to a local channel nonlinear response module to obtain emission signals; step 3, converting the emission signal into a digital signal, and sending the digital signal to a nonlinear pre-equalization coefficient calculation module; calculating a pre-equalization coefficient according to the digital signal and the pre-equalization data; and step 4, feeding back the pre-equalization coefficient to a nonlinear pre-equalization realization module to obtain a nonlinear pre-equalization response. According to the method, on the basis of pre-equalization of local feedback at the transmitting end, the quality of signals received by the receiving end can be greatly improved, and the decoding success rate of the receiving end can be improved.

Description

technical field [0001] The invention belongs to the field of carrier communication, and in particular relates to a nonlinear pre-equalization device and method of a G3-PLC power carrier line system. Background technique [0002] In the prior art, G3-PLC (Power line Communication, power carrier communication) is based on signal equalization at the receiving end, that is, after the receiving end receives the signal from the transmitting end and demodulates successfully, the receiving end will feed back the channel equalization coefficient to the transmitting end , the transmitting end generates a pre-equalization coefficient according to the feedback. Due to the serious interference on the power line, the receiving end cannot demodulate the signal of the transmitting end in some cases. In this case, the transmitting end will not generate pre-equalization coefficients. [0003] The G3-PLC power carrier signal will generate nonlinear distortion at the transmitter, and we call t...

Claims

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Application Information

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IPC IPC(8): H04B3/54H04L25/03
CPCH04B3/544H04L25/03343H04B2203/5425H04B3/54H04B3/06H04L27/367H04L5/0053
Inventor 张宏亮钱海锋
Owner HANGZHOU VANGO TECH