Visible light communication equalization method and system based on sparse Bayesian learning

A sparse Bayesian, visible light communication technology, applied in the field of equalization methods and systems for visible light communication, can solve the problems of resource waste, repeated design, and the original signal of the VLC system is far away, etc.

Active Publication Date: 2020-08-11
QINGDAO UNIV
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many problems in the existing VLC system, so that the signal at the receiving end of the VLC system is far from the original signal. The reasons for this phenomenon are as follows:
[0005] The problem of non-ideal lighting device characteristics: In the VL

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Visible light communication equalization method and system based on sparse Bayesian learning
  • Visible light communication equalization method and system based on sparse Bayesian learning
  • Visible light communication equalization method and system based on sparse Bayesian learning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0079] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0080] The purpose of the present invention is to provide an equalization method and system of visible light communication based on sparse Bayesian learning, which can realize the adaptive compensation of complex dynamic nonlinearity and multipath transmission damage of VLC system, and improve the communication performance of VLC system.

[0081] In order to make the above objects, features and advantages of the present invention more comprehensible, the presen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a visible light communication equalization method and system based on sparse Bayesian learning. The method comprises the following steps: acquiring an electric domain signal from a photoelectric detector; constructing a nonlinear equalizer by taking Volterra series as a basic framework and adopting a sparse Bayesian learning method and a Kalman filtering iteration method;performing adaptive compensation on the electric domain signal by using the nonlinear equalizer, and recovering an original sending symbol. According to the visible light communication equalization method and system based on sparse Bayesian learning provided by the invention, the adaptive compensation of complex dynamic nonlinearity and multipath transmission damage of a VLC system can be realized, and the communication performance of the VLC system is improved.

Description

technical field [0001] The present invention relates to the field of visible light communication, in particular to an equalization method and system for visible light communication based on sparse Bayesian learning. Background technique [0002] The rapid development of mobile Internet technology and the multiplication of wireless data services will inevitably bring about explosive growth in spectrum demand, and the contradiction between spectrum supply and demand will become more prominent. Visible Light Communication (VLC) is an effective solution to the problem of spectrum shortage. With the light-emitting characteristics of light-emitting diodes (Light Emitting Diode, LED), VLC not only has the advantages of no electromagnetic interference and green environmental protection, but also has the dual functions of lighting and communication. It is used in electromagnetically sensitive environments such as mines, nuclear power plants, engine rooms and hospitals. Traditional r...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04B10/116H04B10/69G06K9/62G06F17/16G06F17/18
CPCH04B10/116H04B10/6971H04B10/6972G06F17/16G06F17/18G06F18/24155
Inventor 苗圃刘希宋康殷作亮王新华
Owner QINGDAO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap