Re: [Paparazzi-devel] Log Plotter GPS 9 decimal places

[Prof. Dr.-Ing. Heinrich Warmers]

Hi, the neo7 has a PPP mode (not PPP). In this mode you can result a error down to 60cm when the system is not moving.
Perhebs with a multikopter in position hold?
http://www.kowoma.de/gpsforum/viewtopic.php?f=3&t=3455&hilit=neo
alonso acuña schrieb:

Hi. What exactly did you mean by fixed antenna? Do you know where can I get a Neo7 based GPS which is not too expensive?

On Tue, Mar 25, 2014 at 1:56 PM, Prof. Dr.-Ing. Heinrich Warmers <address@hidden> wrote:

Hi  Joseph ,
The  NVS NV08  is a good receiver. What do you use for a antenna?
The 5cm is the minimum  for  RTKLIB  and  L1 receiver with guard ring  antenna..
But 20cm are also a good value.
The Neo7 has a inside PPP modus. 60cm are possible with fixed antenna.

Regards

Heinrich


Joseph Muhlhausen schrieb:

Hi Heinrich,

I'm curious about the performance of Neo 6 and Neo 7. 

- Have you compared them to an RTK GNSS to validate their accuracy? 

- Is the accuracy you mention when static or dynamic?

I am using a NVS NV08 GNSS as a ground GPS with RTKLIB and, without a reference station I do not go below 20 cm accuracy after 30 min of static RAW recording.  

Best,

Joseph

On Tue, Mar 25, 2014 at 8:30 AM, Felix Ruess <address@hidden> wrote:

Hi Heinrich,

ah, it's for the CSV export, that was not clear from the question...
Would probably be good to add the number of decimal places as an option to the CSV export.

Cheers, Felix

On Tue, Mar 25, 2014 at 10:05 AM, Prof. Dr.-Ing. Heinrich Warmers <address@hidden> wrote:

Hi Felix,
we take  photos  with Paparazzi and need the exakt  position of them.
The neo7 has a typical error down to 60 cm. The neo6  about 1.2m .
By taking overlapping photos a 3D model of the earth  surface  can bee generated.
I think to change is a good idea, since the gps error  of modern receivers is reduced  for each new generation.
It was only for the generation of  csv files.
Same reference points are measured with  phase measurements and reach a error of 5 cm after postprocessing .

 
Cheers, Heinrich

Felix Ruess schrieb:

Hi Heinrich,

but where exactly and for what purpose do you need the 9 decimal places?
Is this something we should change?

Cheers, Felix

On Mon, Mar 24, 2014 at 1:01 PM, Prof. Dr.-Ing. Heinrich Warmers <address@hidden> wrote:

Hi Felix,
after changeing a format sting .6f to .9f  it works.
Cheers, Heinrich

Felix Ruess schrieb:

Hi Martin,

not quite following you, could you elaborate?

Cheers, Felix

On Wed, Mar 19, 2014 at 10:33 AM, martinvk <address@hidden> wrote:

Hello,

have anyone an idea how can i get 9 decimal places at the GPS?

greeting,
Martin



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