Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Recurrent and metastatic osteoclast-like giant cell tumor of the liver revealed by FDG PET/CT.

Clinical nuclear medicine·2012
Same author

Case-control study of single nucleotide polymorphisms of PSCA and MUC1 genes with gastric cancer in a Chinese.

Asian Pacific journal of cancer prevention : APJCP·2012
Same author

Significance of Aspergillus spp. isolation from lower respiratory tract samples for the diagnosis and prognosis of invasive pulmonary aspergillosis in chronic obstructive pulmonary disease.

Chinese medical journal·2012
Same author

Stage-specific gender differences in cognitive and neuropsychiatric manifestations of vascular dementia.

American journal of Alzheimer's disease and other dementias·2012
Same author

Oncolytic virus-mediated tumor radiosensitization in mice through DNA-PKcs-specific shRNA.

Translational cancer research·2012
Same author

A label-free electrochemiluminescence aptasensor for thrombin based on novel assembly strategy of oligonucleotide and luminol functionalized gold nanoparticles.

Biosensors & bioelectronics·2012

Related Experiment Video

Updated: Sep 25, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

10.0K

Improved multi-channel interferometric fiber-optic sensor demodulation based on the Goertzel algorithm.

Jianxiang Zhang, Wenzhu Huang, Wentao Zhang

    Optics Express
    |April 27, 2022
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces an improved Goertzel algorithm for multi-channel fiber-optic sensors. The new method effectively reduces harmonic distortion and enhances amplitude consistency in sensor systems.

    More Related Videos

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
    09:03

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

    7.3K
    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.7K

    Related Experiment Videos

    Last Updated: Sep 25, 2025

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
    09:43

    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

    Published on: March 20, 2017

    10.0K
    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
    09:03

    A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

    Published on: January 7, 2019

    7.3K
    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.7K

    Area of Science:

    • Optoelectronics
    • Fiber-optic sensing technology
    • Signal processing

    Background:

    • Multi-channel interferometric fiber-optic sensors are crucial for various applications.
    • Space-division multiplexing (SDM) and phase-generated-carrier (PGC) demodulation are common techniques.
    • Fluctuations in phase delay and modulation depth degrade signal quality, causing amplitude inconsistency and harmonic distortion.

    Purpose of the Study:

    • To propose an improved demodulation scheme for multi-channel interferometric fiber-optic sensors.
    • To simultaneously calculate and compensate for multi-channel phase delay and phase modulation depth fluctuations.
    • To enhance signal quality by suppressing harmonic distortion and improving amplitude consistency.

    Main Methods:

    • An improved demodulation scheme based on the Goertzel algorithm is developed.
    • The Goertzel algorithm is used to extract the 1st to 6th harmonic amplitudes of the interference fringe.
    • Phase delay is calculated from the 1st harmonic's real and imaginary components.
    • Phase modulation depth is determined using a combinatorial operation on harmonic amplitudes.
    • A reference channel is incorporated for feedback control of phase delay and modulation depth.

    Main Results:

    • The proposed scheme effectively extracts harmonic amplitudes using the Goertzel algorithm.
    • Accurate calculation of phase delay and phase modulation depth is achieved.
    • Experimental results show significant suppression of harmonic distortion.
    • Improved amplitude consistency across multiple channels was demonstrated.
    • The method operates with low resource consumption.

    Conclusions:

    • The improved Goertzel algorithm-based demodulation scheme offers a robust solution for multi-channel interferometric fiber-optic sensors.
    • This approach effectively addresses the challenges of phase delay and modulation depth fluctuations.
    • The technique enhances the reliability and accuracy of sensor data by improving signal quality.