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lee-d
lee-d
@lee-d
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Joined: September 19, 2013 9:12 am
Topics: 40 / Replies: 2342
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RE: Great traverse accuracy but fails least squares

Also if you go down and look at your residuals most of them are sub millimeter and the highest one is 1.7mm. I don't think you've got a whole lot to b...

7 years ago
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RE: Great traverse accuracy but fails least squares

?ÿProject Default Instrument?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ Distances (Constant)?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ :?ÿ?ÿ?ÿ 0.009144 Meters?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ?ÿ Distances (PPM)?ÿ?ÿ?ÿ?...

7 years ago
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RE: Great traverse accuracy but fails least squares

As Rover83 points out, you failed under the minimum bounds, not over; this means that your initial error estimates exceed the adjusted errors. Check y...

7 years ago
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RE: LiDAR Example: Riegl miniVUX

There's no single answer to the question how many end up being ground, it's completely dependent on the environment. Sometimes none of them, but usual...

7 years ago
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RE: LiDAR Example: Riegl miniVUX

What we discovered very quickly is you need a lot of data storage when flying this package. Just the processed LAS files from most flights are between...

7 years ago
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RE: Control networks - how to know which stations have moved?

I do a lot of resections, usually to establish the instrument from GPS but on some sites I'll shoot in things like radio towers and building corners t...

7 years ago
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RE: LiDAR Example: Riegl miniVUX

Typically around 850, varies with height, speed and overlap of course.

7 years ago
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RE: Control networks - how to know which stations have moved?

Please note that I said determine if points are bad, not re-establish them. If I'm given coordinates on control points then I know what the angles and...

7 years ago
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RE: Trimble V10 Imaging Rover

Just add to this thread, Trimble has pretty much dropped support for the V10, at least in TBC. It was a cool product that filled a niche but the SX10 ...

7 years ago
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RE: Motion vs Action

The version of the quote I heard was attributed to Patton and went "A good plan violently executed now is better than a perfect plan executed tomorrow...

7 years ago
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RE: LiDAR Example: Riegl miniVUX

I've been flying a MiniVUX DL and I can tell you from experience that in the dense canopy we run into on undeveloped land you are getting very few ret...

7 years ago
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RE: Control networks - how to know which stations have moved?

At the risk of being scorned as an ignorant Luddite, I would also posit that Least Squares is not the be-all and end-all of survey measurement. I'm go...

7 years ago
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RE: Control networks - how to know which stations have moved?

"The very next question anyone should be asking is why are you traversing? Its the worst possible method to establish or check control. Only very exce...

7 years ago
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RE: Trimble Access and NMEA output question

I was thinking the same thing... I don't know enough about the GeoXR to be able to say with 100% confidence that it will work.

7 years ago
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RE: Is it possible to reinstall Survey Controller on TSC2

Trimble still has all of the versions of Survey Controller on their web site; I don't remember what the exact procedure for loading them is but it's n...

7 years ago
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RE: Trimble Access and NMEA output question

I'm pretty sure NMEA out options were added to the Survey Style menu in Access 2015. This is EXACTLY the reason why you purchase annual software maint...

7 years ago
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RE: Center of Utility Pole

I never thought about using Circular Object for trees and poles... it works great for storage tanks.

7 years ago
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RE: Center of Utility Pole

If I know the diameter of the pole I shoot it reflectorless and do a distance offset by the radius. The only issue is that you have to remember to put...

7 years ago
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RE: Center of Utility Pole

To use offsets with RTK you go into COGO and go to Create Point. You can do Bearing / Distance, Distance / Distance, or Bearing / Bearing. They have a...

7 years ago
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RE: NAD83 projection in Texas

You should not be using the ITRF to NAD83 coordinate system if the VRS is already broadcasting NAD83; you should just be using US State Plane 83. Chan...

7 years ago
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