Foundations of Global Navigation Satellite Systems (GNSS)

Foundations of Global Navigation Satellite Systems (GNSS)
    • Languages: English
    • Publish Date: 2017-04-21
    • Skill Level: 2 '
    • Completion Time: 1.25 - 1.50 h
    • Includes Audio: no
    • Required Plugins: none
    • Topics:
      Geospatial
    • Reviews:

      (10 reviews)

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ejaymet 2017-06-21 07:24:14

Good - quite concentrated but straightforward explanation. More equations available in appendices for those who want them.
coandrei 2017-06-21 05:19:33

This lesson contains several good visualisations helpful for GNSS education. On the other hand, there are also several inconsistencies. I point out below few I spotted: section 2f: The statement "With three satellites in view, the receiver should be able to figure out where it is in three dimensions (lat/long/height) on the surface of Earth" is incorrect. 3 sats give us 2D pos (lat/lon) + rx clk section 5b: The formula for the radius curvature in the prime vertical is completely erroneous. appendix2: Partial derivates for the pseudorange should take the squareroot to denominator. Also, I believe there should be minus sign. There is subscript inconsistency for ∆P on the left part of the matrix form.
lrichardson64 2017-06-20 18:38:44

This lesson contains a lot of good information but it is not broken down in an sort of easily absorbable way.
michael_endicott@nps.gov 2017-06-17 15:06:22

This lesson is very informative in a technical fashion that might make it difficult for people with little to no prior knowledge to manage.
kdrozd 2017-06-15 16:26:11

Covers all needed basic topics to start GNSS adventure...
WHH114 2017-06-14 16:02:33

I like this new format and the quizzes really make you think. This material is something that everyone insurveying needs to know and learn.
chrispucci 2017-06-14 09:15:30

Pretty good crash course on GNSS. Covers a lot of complex material in a very short period. The quiz format with multiple correct answers is tough thought!
sblanton3 2017-06-13 14:00:26

I had to read the material a number of times to be sure I understood. There are area which could be a little more in depth and a few terms that need to be better defined. There is a mathematical error on Unit 3 question 3. -- 0.579 cycles at .19 m/ cycle is 11 cm.not 13.1 cm. Unit 3 question 4 the 'correct' answer gives 1Ghz as 1x109 instead of 10 to the 9th power.

[Editor's note: Thanks for the feedback and for catching these errors. The errors have now been corrected.]
Javier Fraile 2017-06-11 15:36:23

Good presentation and slides.
shaggy073077 2017-05-26 19:17:08

n/a