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

Instrument Calibration01:12

Instrument Calibration

Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Calibration Curves: Correlation Coefficient01:10

Calibration Curves: Correlation Coefficient

In a linear calibration curve, there is a value called the calibration coefficient, denoted by 'r,' which measures the strength and the direction of association between two variables. The correlation coefficient value ranges from −1 to +1. A value of +1 indicates a perfect positive linear correlation, −1 denotes a perfect negative correlation, and 0 implies no correlation between the two variables. A positive correlation value establishes that as one variable increases, the other increases, and...
Glassware Calibration01:11

Glassware Calibration

Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
Receiver Operating Characteristic Plot01:15

Receiver Operating Characteristic Plot

A ROC (Receiver Operating Characteristic) plot is a graphical tool used to assess the performance of a binary classification model by illustrating the trade-off between sensitivity (true positive rate) and specificity (false positive rate). By plotting sensitivity against 1 - specificity across various threshold settings, the ROC curve shows how well the model distinguishes between classes, with a curve closer to the top-left corner indicating a more accurate model. The area under the ROC curve...

You might also read

Related Articles

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

Sort by
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jun 10, 2026

Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels
10:00

Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels

Published on: June 2, 2020

Method for calibrating heterodyne receiver arrays.

L X Sica

    Applied Optics
    |August 12, 2010
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces a novel modification to heterodyne laser radar transmitters. This enhancement enables precise calibration of local oscillator phases in multichannel receivers.

    More Related Videos

    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
    09:36

    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

    Published on: June 25, 2021

    Fabrication and Characterization of Superconducting Resonators
    10:26

    Fabrication and Characterization of Superconducting Resonators

    Published on: May 21, 2016

    Related Experiment Videos

    Last Updated: Jun 10, 2026

    Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels
    10:00

    Calibration of Vector Network Analyzer for Measurements in Radio Frequency Propagation Channels

    Published on: June 2, 2020

    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
    09:36

    Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

    Published on: June 25, 2021

    Fabrication and Characterization of Superconducting Resonators
    10:26

    Fabrication and Characterization of Superconducting Resonators

    Published on: May 21, 2016

    Area of Science:

    • Optics and Photonics
    • Radar Systems Engineering
    • Signal Processing

    Background:

    • Heterodyne laser radar systems are crucial for remote sensing and measurement.
    • Accurate phase calibration of multichannel receivers is essential for signal integrity.
    • Existing calibration methods may face limitations in complex receiver architectures.

    Purpose of the Study:

    • To propose and validate a new method for calibrating local oscillator phases in multichannel laser radar receivers.
    • To enhance the performance and reliability of heterodyne laser radar systems through improved phase calibration.

    Main Methods:

    • Modification of the transmitter section to generate two additional output beams.
    • Introduction of specific offset frequencies for the new output beams.
    • Utilizing these beams for phase calibration of the local oscillator in a multichannel receiver.

    Main Results:

    • Demonstrated the feasibility of calibrating local oscillator phases using the modified transmitter.
    • Achieved precise phase calibration, improving receiver accuracy.
    • The proposed method is compatible with multichannel heterodyne laser radar systems.

    Conclusions:

    • The transmitter modification offers a practical solution for multichannel receiver phase calibration.
    • This advancement can lead to more robust and accurate laser radar applications.
    • Further research can explore optimization for specific operational environments.