AI Assistant
Notifications
Clear all

GPS Surveying Under Canopy

30 Posts
22 Users
0 Reactions
3,548 Views
Larry P
(@larry-p)
Posts: 1121
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

> I wrote my MS thesis on gps under canopy. Give me your email and I'll send you a copy if you're interested.

Oooo ooooo.... (waving hand franticly) .... send me a copy too. 😀 Please.

Larry P


 
Posted : December 21, 2011 1:11 pm
The Pseudo Ranger
(@the-pseudo-ranger)
Posts: 2367
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

That's a common belief among non-Surveyors ...

LOL ... I had a Sokkia Salesman tell me the same thing about 10 years ago ... but I knew better at the time ...


 
Posted : December 21, 2011 1:11 pm
R. Michael Shepp
(@r-michael-shepp)
Posts: 570
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

Me too please!:-)


 
Posted : December 21, 2011 1:13 pm
surveysc
(@surveysc)
Posts: 192
Member
Topic starter
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

That's a common belief among non-Surveyors ...

You got that right. I was waiting for you to chime in. I would like to put on an all day seminar at Myrtle Beach State Park. You think we could come up with one? I would like to run a conventional traverse with total station with all but a couple of points under canopy. Let me know what you think. It would probably generate some good data for comparison.


 
Posted : December 21, 2011 1:20 pm
Kris Morgan
(@kris-morgan)
Posts: 3855
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

Brooks

It was a good read.


 
Posted : December 21, 2011 1:35 pm

R. Michael Shepp
(@r-michael-shepp)
Posts: 570
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

It was a good read, and confirms in a much more formal way what we have experienced.

We have taken shots under canopy and then traversed in to check the shots. They have never been good enough; and were off in the same ranges you report. Hopefully time, more satellites, and better antennas will make it possible.

Thanks for sharing your paper.


 
Posted : December 21, 2011 1:49 pm
paden-cash
(@paden-cash)
Posts: 11086
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

Stealth technology

One of the hands remarked the other day that if they could cover an airplane with cedar branches they'd have the best "stealth" ever. No radio signals can ever get through them..


 
Posted : December 21, 2011 4:16 pm
a-harris
(@a-harris)
Posts: 8759
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

Yeppers, that sounds like a good read, include a copy to my mailbox too....


 
Posted : December 21, 2011 5:56 pm
Mike Mac
(@mike-mac)
Posts: 158
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

I saw this post this morning and figured he would get the replies he did...be nice is trees were not an issue, thats when a person really needs it..

I am in Search and Rescue and one of our members sends me links to interesting things...here is one on GPS indoors????

http://www.gpsdaily.com/reports/Locata_Unveils_World_First_GPS_style_Indoor_Positioning_Solution_999.html


 
Posted : December 21, 2011 8:18 pm
The Pseudo Ranger
(@the-pseudo-ranger)
Posts: 2367
Member
Translate
English
Spanish
French
German
Italian
Portuguese
Russian
Chinese
Japanese
Korean
Arabic
Hindi
Dutch
Polish
Turkish
Vietnamese
Thai
Swedish
Danish
Finnish
Norwegian
Czech
Hungarian
Romanian
Greek
Hebrew
Indonesian
Malay
Ukrainian
Bulgarian
Croatian
Slovak
Slovenian
Serbian
Lithuanian
Latvian
Estonian
 

Interesting. I've always wondered if it were possible to make ground based transmitters that work like GPS on wooded sites. Like you set 3 or 4 transmitters up on control points around your site, then you could walk the site with a rover, getting your position from the ground stations. It would likely only be good for X,Y, though ... no elevations.


 
Posted : December 22, 2011 7:29 am

Page 2 / 2