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

Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
Circular Orbits and Critical Velocity for Satellites01:16

Circular Orbits and Critical Velocity for Satellites

The Moon orbits around the Earth. In turn, the Earth (and other planets) orbit the Sun. The space directly above our atmosphere is filled with artificial satellites in orbit. One can examine the circular orbit, the simplest kind of orbit, to understand the relationship between the speed and the period of planets and satellites with respect to their positions and the bodies that they orbit.
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...
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 author

Analog intersatellite communication with frequency-modulated light. Part 1. Noise theory.

Applied optics·2008
Same author

Places in the heart. A project Perfect World diary.

Materials management in health care·1997
Same author

A new treatment for osteomyelitis: extremity perfusion with antibiotics.

The Journal of the Louisiana State Medical Society : official organ of the Louisiana State Medical Society·1959
See all related articles

Related Experiment Video

Updated: Jul 7, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Fading statistics for intersatellite optical communication.

R R Hayes

    Applied Optics
    |February 12, 2008
    PubMed
    Summary

    Intersatellite optical links are prone to signal fading due to pointing jitter. To maintain a fade rate below once per year, root-mean-square pointing jitter must be kept under 7% of the beam width for systems with a 3-dB margin.

    Area of Science:

    • Optical engineering
    • Satellite communication systems
    • Signal processing

    Background:

    • Intersatellite optical communication links utilize narrow beam widths, increasing susceptibility to signal fading.
    • Pointing jitter and stationary pointing offsets can significantly aggravate signal fading in these systems.

    Purpose of the Study:

    • To calculate and analyze fade rates in intersatellite optical communication links.
    • To determine the acceptable levels of pointing jitter and offset for reliable communication.

    Main Methods:

    • Developed an integral solution for fade rate calculation in general nonsymmetrical systems with pointing bias.
    • Derived closed-form solutions for symmetrical systems (identical platforms and optics).
    • Modeled pointing jitter using Gaussian statistics for spaceborne telescopes with Gaussian beam profiles.

    More Related Videos

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    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

    Related Experiment Videos

    Last Updated: Jul 7, 2026

    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    07:56

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    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

    Main Results:

    • Quantified the relationship between pointing jitter, pointing offset, and signal fade rates.
    • Showed that for a 3-dB margin system, root-mean-square (RMS) pointing jitter must be less than 7% of the full beam width to achieve a fade rate below once per year.

    Conclusions:

    • Strict control of pointing jitter is crucial for maintaining signal integrity in intersatellite optical communication.
    • The derived solutions provide essential guidelines for designing robust optical communication systems in space.