LEO Satellite Networks: Brief Introduction to Communications Challenges

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Iain Explains Signals, Systems, and Digital Comms

Iain Explains Signals, Systems, and Digital Comms

День тому

An overview of the main challenges in designing Low Earth Orbit (LEO) satellite communication networks.
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Related videos: (see iaincollings.com)
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КОМЕНТАРІ: 21
@luyombojonathan6688
@luyombojonathan6688 8 місяців тому
Thanx alot for this channel !!! I enjoyed the break down 👍
@iain_explains
@iain_explains 8 місяців тому
Glad you enjoyed it!
@dineshjakhar2070
@dineshjakhar2070 8 місяців тому
Very informative. Thank you.
@iain_explains
@iain_explains 8 місяців тому
You are welcome!
@mgx9383
@mgx9383 9 місяців тому
Thank you.
@iain_explains
@iain_explains 9 місяців тому
You're welcome!
@inavigator1779
@inavigator1779 9 місяців тому
First comment and the most awaited series yay
@iain_explains
@iain_explains 9 місяців тому
😁
@user-tm5jm7re7v
@user-tm5jm7re7v 8 місяців тому
Hello,I want to konw when in Rician,its LOS multiply NLOS is?HOW to use matrix to express Rician fading channel?Thank you very much
@iain_explains
@iain_explains 8 місяців тому
These videos might help: "What is Rician Fading?" ukposts.info/have/v-deo/iZmklo9qbp6oyX0.html and "Rayleigh v Rician Fading: Which is better?" ukposts.info/have/v-deo/g4GBdq1_qIqalKc.html
@heathjones1980
@heathjones1980 2 місяці тому
Just a question on the beam steering.. Imagine a scenario where you have a single satellite and a bunch of subscribers all pointing to that satellite. The satellite uses beam steering. At any point a subscriber can receive a burst from the satellite as they always pointing in the right direction, but on the satellite RX side (burst from the subscriber), you will need to have the beam steered towards that subscriber. So that's where the time slot comes in. But extrapolate this out to multiple satellites with different relative velocities - do you run into synchronisation and timing issues due to relative clock drifts? What even constitutes the clock and a time slot in this scenario? Thanks for another awesome video by the way!
@iain_explains
@iain_explains 2 місяці тому
Yes! I'm not an expert on timing recovery, but there are definitely clock synchronisation challenges over these long transmission distances with multiple users. In many cases timing is referenced to signals from GPS satellites.
@melvinp1324
@melvinp1324 6 днів тому
@@iain_explains gps satelites lol more like ground stations
@deplorablesecuritydevices
@deplorablesecuritydevices 6 місяців тому
How do you know all of this?? Amaizing explanations thank you!
@iain_explains
@iain_explains 6 місяців тому
I'm so glad to hear that you liked the video. I've currently got a research project on LEO satellite communications, so I thought I'd share some of the fundamental concepts.
@deplorablesecuritydevices
@deplorablesecuritydevices 6 місяців тому
Thank you so much I have an interview at Starlink monday and have been binge watching ALL of your content! The laplace explanation was my favorite. Thank you again!
@iain_explains
@iain_explains 6 місяців тому
Great. I hope your interview went well.
@ahmednor5806
@ahmednor5806 3 місяці тому
🙏🙏💐💐💐
@melvinp1324
@melvinp1324 6 днів тому
rotate around the eart pmsl - do you mean the Glaeson jet streams
@iain_explains
@iain_explains 6 днів тому
Satellites are at much higher altitudes than the jet streams.
@melvinp1324
@melvinp1324 5 днів тому
@@iain_explains how far do helium balloons go up
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