GNSS lesson over lofi beats = 👁️👄👁️ Edit: Seriously though, this is an excellent distillation of what I found to be a rabbit hole of information when I was first learning this stuff. Subbed.
Pretty good video. I'm impressed that you actually called the measurement method correctly. Most people get that wrong. You were pretty much on the mark except for the control segment. You sort of hit on it when you talked about the ephemeris, but the reference station is not part of the control segment, it is part of the user segment. The control segment are the distributed tracking stations, central command location (and backup location) and all the similar parts of the system that control the satellites and messages from the ground. It computes and uploads the ephemerides, for instance, to the satellites. Newer (Block IIF maybe?) satellites can measure their own position, now, by the way.
I'm an Excavation & Utility contractor and have no formal survey training. While I do have a head for math, Rami makes this appear to be so simple to understand. While I have been using a Total station to do layout, I'm jumping in with GNSS !
Hello Tamimi. Excellent content. I'm so close to be a surveyor in Peru. And you channel is perfect, because I learn about my field and also I get closer to be a bilingual. Please, continue with the awesome content.
I might havecommented on two posts in 15 yrs on youtube so take this as an honor lol. I work in GNSS Machine Control and Site survey and I love your videos. Make your next video on RTK technology and I will use it in my classrooms like I would share this one!
Please, make a video about multiple traverses in same project and how to adjust them in Civil 3D. There is no tutorial like this in entire RU-vid, mainly when you have like 2 or 3 days of different traverses and how to make them to interact and process them to get the whole drawing. Thnks!
Thank you for this video! I have two questions: How can I check if I have a "reference frame" close to me? And what is the max allowed distance in order to use it?
Hello that was a great work done. Please can you work on converting the coordinates into longitude and latitude and plotting them on Google earth. Thanks
If I know where the corners of my property is, as I have found the iron stakes and red flags, how do I find the actual lines when they are 1600 feet apart over hills in the woods
Today l was trying to understand the difference between two methods while l was working at office.( l am a civil engineer) Now after two hours came home and watched your video about the same topic .Such a coincidence or my brainwaves sent signals to the your satallite .
Sir, I want to buy a GPS receiver, I have two preferences as my budget is constrained, either Comnav N3 or ChcNav i83. I would appreciate it if you could suggest which one is better out of these two.
Thanks for your videos. Can one purchase a receiver that can produce GPS measurements to the nearest inch? It would be extremely helpful if 2-4 GPS readings were commonly integrated into property surveys (at various extents) to better address accurate positioning of property corners in GIS applications. In areas without any clear aerial points of reference, I'd be happy if it were accurate to 1 foot. If only orthophotography (along with multiple GPS readings) were also commonly integrated into surveys.
We only use javad gnss. And surveyors measure in tenths not inchs just fyi. Our equipment is around 30,000$ gets down to the thousandths of a tenth .000
Hello good video but there is a small inacuracy in your statement. 3 satelites is not enough not because it is not accurate enough. But because to solve the position of your receiver, you need to solve 4 free parameters. Then yoo you need at least 4 satelites (4 measurements). With 3 satelites you cannot get a position. I guess you know what are the 4 parameters. X, Y, Z and ... the clock shift between the satellites and your receiver.
You are correct, the “solution” you get with the third satellite isn’t enough. I guess I should clarify that not accurate means not enough parameters solved to have a practical solution. We use three satellites for mathematical testing.
