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Related Experiment Video

Updated: Mar 11, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Linear anti-jamming algorithm design for multi-channel optical fiber communication.

¹School of Computer and Information Engineering, Wuhan Railway Vocational College of Technology, Hubei, China.

|March 9, 2026

Summary

This summary is machine-generated.

This study introduces a new algorithm combining Discrete Fourier Transform (DFT) and Wavelet Transform (WT) to combat linear interference in fiber optic communication. The DFT-WT-LAJ algorithm effectively identifies and suppresses interference, enhancing signal quality.

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Area of Science:

Optical Communications
Signal Processing

Background:

Multi-channel fiber optic networks are vital for long-distance digital transmission.
Orthogonal Frequency Division Multiplexing (OFDM) systems are susceptible to linear interference, degrading signal quality.

Purpose of the Study:

To develop a method for identifying, locating, and mitigating linear interference in OFDM systems.
To enhance the reliability and quality of digital signal transmission in fiber optic networks.

Main Methods:

Integration of Discrete Fourier Transform (DFT) and Wavelet Transform (WT) techniques.
Wavelet decomposition and thresholding for noise signal denoising.
The proposed DFT-WT-LAJ algorithm combines DFT and DMFT for interference detection and filtering.

Main Results:

The algorithm effectively controls interference amplitude below 10 Hz.
Achieved a synchronization probability of 0.7 at a 35 dB signal-to-noise ratio (SNR).
Maintained an interference-to-signal ratio above 31 dB, significantly improving signal quality.

Conclusions:

The DFT-WT-LAJ algorithm offers a robust solution for mitigating linear interference in fiber optic communication.
This approach enhances signal quality and transmission reliability in OFDM systems.