Method, system and equipment for joint estimation of channel impulse response and impulse noise

A technology of channel impulse response and impulse noise, which is applied in the field of communication, can solve problems such as poor accuracy of channel estimation results, and achieve the effects of improving anti-noise performance, good performance, and improving transmission efficiency and reliability
CN112003801BActive Publication Date: 2022-04-29MEASUREMENT CENT OF GUANGDONG POWER GRID CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MEASUREMENT CENT OF GUANGDONG POWER GRID CO LTD
Publication Date
2022-04-29

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Abstract

The present invention discloses a channel impulse response and impulse noise joint estimation method, system and equipment. The present invention respectively solves the channel frequency response and noise of each receiving end of the MIMO-PLC channel by establishing a MIMO-PLC channel model and a noise model, and On this basis, the received signal of the MIMO-PLC channel is calculated; by using the correlation of the channel and the sparse characteristics of the channel impulse response and impulse noise, based on the fast block sparse Bayesian learning (BSBL-FM) method, the use of block sparseness can effectively mine The structure and spatial distribution information of the physical signal can significantly improve the performance of the sparse reconstruction algorithm. The sparse Bayesian learning method can fully mine and utilize the prior information of the data. Assuming the probability distribution of the prior information, the problem to be solved The problem is mathematically modeled, and the channel impulse response and impulse noise are jointly estimated, which effectively improves the anti-noise performance of the MIMO-PLC system and the accuracy of estimating the channel impulse response and impulse noise.
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Description

technical field

[0001] The present invention relates to the communication field, in particular to a method, system and equipment for jointly estimating channel impulse response and impulse noise. Background technique

[0002] Power line communication (PLC) is a technology that uses power lines to transmit data signals. Because the power line system has the advantages of wide distribution of lines and low installation cost, PLC is widely regarded as an important communication method in the fields of smart grid, home automation, and office automation. Generally, according to the voltage level transmitted by the power line, PLC can be divided into three categories: low voltage power line communication (usually refers to 220V / 380V voltage level); medium voltage power line communication (usually refers to 10kV voltage level); high voltage power line communication (usually refers to 35kV and above voltage level). With the growth of communication demand for smart grid and smart h...

Claims

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