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fortysixdegrees | 2 years ago

Ive been working with GNSS for the last decade and a bit, and this article and the comments here are a low point for HN in terms of people making comments about stuff they dont understand.

PSA: if you want to learn about corrected GNSS, stop reading this thread now. I started replying to some comments then gave up, most here are more wrong than right.

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fsh|2 years ago

Physics articles are even worse. Commenters on HN are mostly science-illiterate but have very strongly held opinions.

jasonwatkinspdx|2 years ago

This place selects for confident contrarian takes based on superficial knowledge.

I get really annoyed by how in nearly any physics or cosmology post, half the comments are a bunch of people smugly declaring that dark matter is just an imaginary fudge factor added by lazy dishonest scientists.

wepple|2 years ago

Do you have any suggested resources? It deeply fascinated me but books seem either highly specific or academic

fortysixdegrees|2 years ago

Yes 100%.

Get a ublox F9P board and antenna. Couple hundred dollars.

Set it up to do RTK using public CORS base stations (will give you 2cm apx accuracy). You will get a kick out of it.

Then next level is grab the latest rtklib, and do PPP processing.

The RTK step is simple and will boost your motivation to learn more. PPP is also easy to setup, but there are many things you can take to make it more accurate. Each one you will learn about something new. Satellite clock corrections, position corrections, ionosphere and troposphere modelling, receiver dynamics, tidal loading, wind up, etc. List goes on a lot

Once you've done that you'll have a 'feel' for it. From there you'll find your own resources based on what most interests you

And yea, it is fascinating. I'm not bored of it after all this time. New stuff keeps coming out. SSR is super interesting right now