How does GPS system work?

The Global Positioning System (GPS) is a satellite-based navigation system that helps determine a GPS receiver position. This video provides a tutorial on the different segments of GPS system (Satellite constellation, Ground Control Stations). It explains how the GPS determines its position using the Trilateration principle, and provides the source of error that affect the GPS position accuracy.

[gajanan]

Your so amazing bro !! What a explanation !! 😁😁😁 You did a good job !! Well done !

[JamesBailey]

This explanation is the clearest and most thorough about the GPS system on youtube, thank you for making it. The information I'm trying to track down is 'the maximum theoretical limit of GPS refresh rate'. I initially assumed that the satellites sent pulses, but actually they seem to send a continuous bitstream. This makes me wonder why the fastest commercial GPS units calculate your position at 100Hz. I understand that there may be no point calculating at 1000Hz (because there aren't many things you need to track that frequently, and in that time the object won't have moved out of the 30cm circle position that is the max accuracy the system can give you), but I'd still love a further explanation of what the limits of GPS would be (with current broadcast frequencies) especially when it comes to how often you could obtain a meaningful new position update for a receiver.

[andreadanniballe]

Can't probably find a better (clear+short) explanation! Thank you so much!!!

[matthewjameswalker]

Very good and understandable presentation. I have been researching how the signals are generated by the GPS satellites for use in the reciever. I had no idea how much external input is required for error correction via ground control. It appears as though the system would become worthless in a few days if not constantly corrected. Very enlightening. Thank you.

[RenzoTapia-lj]

Congratulations this has to be one of the best explanations I've ever seen!! Thank you

[MaximilianKaden]

Best explanation that I ever seen. Thanks !

[musabmelhem]

You did very excellent in this video.. god bless you sm

[ceebreeze]

Absolutely phenomenal. It was a chance encounter that I discovered this video after having watched tens of them which were half baked.

[personagrata]

I have been looking for a video like this for a while. Excellent video!

[nomaqhwacandymabhena]

An excellent and distinct elucidation. Thank you so so much.

[tarapreethmutyala]

This video has clarified my understanding of GPS. Thanks for the clarity!!!

[jinendra]

The best video ever on this subject I guess

[mominfpm]

Thank you so much for making this great video! Helped me to understand the trilateration and the requirement of 4 satellites!

[iRasmus]

Phenomenally great explanation! Thanks for putting in the time and effort!

[HareeshKumar-ddlo]

very good explanation sending love from pakistan

[juliusbamah]

The best I have listened to on YouTube on GPS 👍👍👍👏

[himanshudubey]

Thank you very much as this video was quite informative to me as I am a trainee deck cadet on board merchant ship so I have to learn about all the navigation equipments being used onbard ships and GPS is one of them.
So thank you once again.🙏

[RedietBerihun]

I found it very helpful and interesting! it has answered the questions i have been wondering how! thank you alot brother! keep it up!!!

[up]

wow amazing make an other video on these topic thanks my brother

[FSST]

Thanks for the explanation! This inspires me to check your other videos also. Good luck to you!