How GPS Works 🛰️ What is GPS

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In this video we will see how GPS or Global Positioning System (GNSS) works, which allows to geolocate devices along the earth's surface with great accuracy.

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◉ 2D editing and effects: DaVinci Resolve

Index
00:00 Intro
00:45 GNSS
01:18 Trilateration
03:07 Coordinate System
03:45 Satellite Constellation
04:53 Distance Calculation
05:51 Problem 1: Instrument Accuracy
06:30 Problem 2: Synchronization of the Clocks
07:26 Problem 3: Effect of Atmospheric Layers
08:12 Location Calculation

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As a retired airline pilot, I helped usher in GPS navigation into the system. One day I was ask how we set time. I explained that time was automatically imported from the satellite. For lack of a better name, I just called it "Star Date Time". If it was good enough for Captain Kirk, it was good enough for me.

jimcaufman

Thank you, finally understood how relativity theory applies to GNSS -- time correction.

ocamlmail

Amazing! Thank you very much for this wonderful video presentation.

thisissoeasy

I know this is a big ask and you’re obviously very busy; would you consider having your remaining Spanish videos (and Italian ones, if those apply) translated to English? I find so much value from your content and the balance you strike between time, simplicity, details, and of course the superb animation support.

I’m fairly new to electronics and I enjoy the component level of detail. I know there are still a lot of fundamental type electrical and electronics concepts to write about, at the same time, I hope you’re considering feedback and requests.

1:) I hope you keep expanding your electronics videos.

2:) Of interest are more complex ICs (OpAmps and timers, for example, their schematics, animations of the IC components that are within the chip, some simple example applications (such as one might find in an electronics 200-1 science/hobby kit), and of course your brilliant animations of these applications.

3:) Videos and animations of common circuits, utilizing discrete components (resistors, coils, capacitors, transistors, diodes), ICs, digital and analog devices, etc, such as comparators, adders, ADCs and DACs, power supplies, buck converters, and on and on :)

4:) Sorry, this is a lot, but hey: you’re that good.

Thank you for what you do.

ronjon

Please be aware, Eduardo narrates the same content with his own voice on the Spanish and Italian versions, but needed to use a synthesized voice for the English ones. And please keep this in mind if one runs across a potential error or confusion that could be attributed to a language barrier.

I was motivated to write this after an arrogant prick embarrassed himself by rudely pointing out…issues…that met this criteria, on one of Eduardo’s transistor series videos.

Since it’s obvious he’s not intending to intentionally mislead and immediately assume someone is an idiot, it is more appropriate to think there may be another reason for the confusion. And please, above all, critique respectfully! I have never respected (nor finished reading their rant) anyone for this behavior and I’m always surprised and disgusted when adults behave like petulant children in these forums.

Like most people, I prefer a human voice but that would be very expensive in this case. I’m grateful he published his content in English, as I really appreciate his perspective, insight, knowledge, and of course his 3D models, as they go a long way reinforcing the text w animation.

Thank you, Eduardo!

ronjon

Also you could use one fewer satellites to determine your location. In case of three satellites, the three distance spheres intersect in two points. One of which could be safely discarded, because it is deep underground or way up in atmosphere/space.

MarekKnapek

4.9 meters? This is incorrect. Please explain where you arrived at that resolution?

LuMaxQFPV

I learned in popular science global satelite positioning system or gsp. But modern nomenclature is gps.

hadleymanmusic

I will never be able to grasp how so few satellites can provide such accurate locations for BILLIONS of devices all at the same time🤯

xXFuZeSnipeZzXx

Can you please make a video on how remote controlled mechanical devices works . That's the principles and actual components used to achieve it. We relay so little energy but output is more how is that possible

harsha