AI Assistant
Notifications
Clear all
felipe-g-nievinski
felipe-g-nievinski
@felipe-g-nievinski
Member
Joined: November 10, 2015 11:34 am
Topics: 5 / Replies: 37
Reply
RE: Baseline or triangle

Forming triangles allows you to infer much more information about the deformation than a baseline does. For example, you could calculate strain in add...

10 years ago
Reply
RE: Fwd: Google opens up GNSS raw observables

A recent paper in the Journal of Geodesy looked at this problem more closely: "... The experiment with low-cost receivers for the SF-DS [single-freque...

10 years ago
Reply
RE: Fwd: Google opens up GNSS raw observables

Mark Silver, post: 376170, member: 1087 wrote: I played with an Android phone with a L1RTK engine in it earlier this year. (Images below.) Good for ma...

10 years ago
Topic
Replies: 12
Views: 764
Reply
RE: How good can really long occupation time observations get?

GeeOddMike, post: 375407, member: 677 wrote: Take a look at the JPL site here: There is a link on this page above the map to "Methods" describing the...

10 years ago
Reply
RE: Geodetic-reduction question

Tom Adams, post: 374824, member: 7285 wrote: I'm getting that the radius varies with the latitude....not quite reconciling what it has to do with the ...

10 years ago
Reply
RE: Geodetic-reduction question

Normally we use the azimuth-independent Gaussian radius of curvature:If you need an azimuth-dependent value, then use Euler's formula:-FGN.

10 years ago
Reply
RE: Using astro for location, not just azimuth

Not sure about celestial navigation, but astro-geodetic methods were fairly common decades ago, e.g.:These methods are just not practical anymore, esp...

10 years ago
Reply
RE: Calculating RMSE Values

The first method is correct. It may be called "pooled RMS". Taking the average of squared RMS values is preferable to the average of RMS values, esp...

10 years ago
Reply
RE: Does quasi-decadal periodicity affect GPS observations?

It affects the transformation from terrestrial frame (ECEF) to celestial frame (ECI), which involves the Earth orientation parameters (EOP). So in pri...

10 years ago
Reply
RE: Testing RTK and Post Processing in Canopy

If using the same base station for RTK and PPK (post-processed kinematic), PPK should be no worse than RTK. After all, in RTK you might have less dat...

10 years ago
Reply
RE: Topcon Tools v8.2

I think the important keyword is "redistributable" -- so try this one instead:-FGN

10 years ago
Reply
RE: How good can really long occupation time observations get?

It all depends on baseline length. You can try downloading a few days worth of RINEX files, discarding L2 data, then processing one day, two days, et...

10 years ago
Reply
RE: Topcon Tools v8.2

So you tried this one:Maybe you need to restart the PC.I'd also try an earlier version of TT, say 8.1 or 8.0.Hope that helps.-FGN.

10 years ago
Reply
RE: Geodetic Certification Proposal ‰ÛÒ Your Input Needed

Congratulations on the initiative. I've just completed the form. I think this document is relevant: ISO/TR 19122:2004 Geographic information/Geomatics...

10 years ago
Reply
RE: OPUS-S, overly optimistic statistics?

The correct interpretation for confidence ellipses is they will contain the true position 95% of the time over repeated occupations. (Successive over...

10 years ago
Reply
RE: Topcon Tools: Typo in RTK base coordinates

Perfect, exactly the type of specific instructions that I was looking for. I'll give it a try when I return to the office. Thanks! leegreen, post: 3...

10 years ago
Reply
RE: Topcon Tools: Typo in RTK base coordinates

Yes, but where exactly in Topcon Tools would the delta values be inserted? If it were in AutoCAD, I'd know how to shift the points. Thanks for the rem...

10 years ago
Reply
Topic
Page 2 / 3