Video

Rodriguez Donna Garcia Maria Garcia Helen

Thompson Steven Miller Nancy Hernandez Jessica

Lee Ruth Martinez Karen Thompson Angela

White Paul Martin Robert Davis Elizabeth

1:17 🎉

The second noise, "BIP!", scared my dog.

I've used the fake gps apps to insert the location of a more accurate external gps receiver into my phone.

Very Many Thanks! Cleared many concepts.

Thank you so much for uploading this. Can't wait to dig in. RIP Professor Enge. 😥

One of the most clear explanations I found. Excellent work. Thank you very much!

Thank you very much for this series. The professor is amazingly good in explaining these concepts! <3

Awesome aid for my engineering degree thesis. Thank you

Is there any study material available for the forier analysis of signals

amazing

sou muito agradecido, obrigado, obrigado, obrigado

it was awesome but if you could add the working of it also??

How does the receiver "split-the-threads" of the C/A and navigation messages if they are sent at the same time? Does it take advantage of the longer bits in the navigation message? That is, when the navigation sends a "one" is that where the C/A ranging occurs?

The quizzes (with answers) are now available here: drive.google.com/file/d/1AkX1ytw4J-3wBNLOL0FNwTWwLzd0qF7K/view?usp=drive_link The original course was carried on Coursera, and the multiple choice quizzes were embedded in the platform. If you are watching on CZcams you won’t see the answers. So I’ve collected the quizzes and worked-exercises from the course, with answers, in a single doc.

Thanks for uploading

Dear Sir, can you suggest any study material/text book/research papers related to this topic. That would be of huge help. Great lecture by the way

Dear sir, can suggest any learning material to look up on BOC?

Why is there a negative on the right hand side?

Very good class. Especially, the analysis for the iq channel.

How did it get 294 W? If it multiplies the first two, then even at 27.5 W x 10.5 it would still be only 288.75 W.

The multipath-waves are always received later than the direct line-of-sight wave (because their paths are always a tiny bit longer). Can't that multipath-error be ignored, when you receive an identical/duplicate transmission just a tiny bit later than the straightpath wave? Or is that too simple?.. (edit) Well yeah, perhaps if there is no satellite in direct line-of-sight, and there is only multipath/reflected waves being received.

Great course. Excellent information. Thank You..

6:00 Professor was happy and proud of his cartoon! :-D

How cool is that? IT'S SOOOO COOOOL!!

Loved the explanation for pseudo. Awesome lecture.

Awesome presentation. But my favorite satellite system "GLONASS" 😂 I was dying...

How does a satellite determine the exact speed of an object on Earth while rotating over a circular path at 14,000 kilometers per hour? Wouldn't it be 1000 times cheaper if they use high-altitude atmospheric balloons or land-based towers? A signal sent by a fridge-sized satellite at 20,200 kilometers away and moving at 14,000 kilometers per hour. I can understand why nobody discusses the ridiculous speeds and altitude of these satellites when calculating radio frequencies; otherwise, it wouldn't make sense.

You are a genius!

Can you please help, in understanding how the 8 is formed?

Thanks for this excellent lecture. This is very helpful to understand the processes in the receiver level.

I think part of the reason for lumping in QZSS with SBAS is that it is regional, not global, therefore does not qualify as a GNSS. Also, no receivers only use QZSS therefore it can be seen as regional augmentation of GPS and others.

The statement that it orbit 1/2:= 1 sidereal day is confusing. That makes it sound like 1 orbit is 2 sidereal days. It is actually 1 orbit period is half a sidereal day.

You might also search first for SVs that are higher in the sky so have lower doppler.

The search animation is a bit off. You would normally search from the centre outwards because the doppler is normally reasonably low. It is o ly high in a fast moving aircraft.

Great series of lectures. Just a typo that the effective radiated power should be 283.5 W and not 294W.

It's like Manchester was fed into a BPSK modulator.

@laintalay do you have the assignments that went along with the course?

this is so wrong. -128dBm is signal power in 2MHz bandwidth. This value does not represent band density

🙏🌹

My question is how we determine the exact position of an earth station? Which method is actually used? I mean... clearly, we should not use GPS... Do we use stars? How much precise is this?

Great lectures although it's not clear where the 10, 10.2, 12, or 17 Tx Gain factors come from. Using the formula derived "transmit antenna gain formula" @ 5:36 (2/1-cos(alpha)) the values don't work out to be what was mentioned in the link budget. I"m curious as to how those numbers came to be. At zenith cos(0)=1, making the gain undefined. At alpha =21.3", cos(21.3") = .931. Using the formula 2 / (1-.931) = 28.99 Tx Gain...?

21:19

How long does it take for a GPS signal to reach the earth? Option a- 1/10 b- 1/15 c- 1/20 d- 1/25 Please tell me sir

You should never pick a sampling rate that is commensurate (meaning a rational multiple) of the chipping rate. That created harmonics in the DLL, something that's common to all tracking loops (look for phase quantisation)

Awesome presentation! Thank you!

Thank you!