[FOSS-GPS] Kinematic vs PPP Kinematic?

Danny Miller dannym at austin.rr.com
Tue Aug 28 02:49:16 PDT 2012


Well, now, I've seen the LEA-6P units are standalone PPP.  But RTKLib 
has kinematic mode which seems to use 2 units and this "differential".

I did download the patched version of rtknavi that has a PPP fix.
I discovered that the PPP "Static" for determining the base station 
location was pretty stable- however, it determines the location for the 
"rover" only, so I just swapped the rover and base port #'s to determine 
the static base location.

When I selected PPP Kinematic, the fix jumps several meters back and 
forth rapidly, but never seemed to stabilize much, and the noise wasn't 
really centered on the true location either.

I ordered the NV08C-CSM units, BTW.  These new kids on the block are GPS 
AND GLONASS,  Galileo, Compass, and SBAS, 2.5m standard accuracy, and a 
few months back the mfg released firmware to expose the RAW pseudorange 
data.  Michele Bavaro thinks highly of them, and there's a hacked 
version of RTKLib for them:
http://michelebavaro.blogspot.com/
So, this should be fun!

Danny

On 8/28/2012 3:49 AM, Michele Bavaro wrote:
> There is a huge difference actually.
> The first is differential, the second standalone.
>
> Cheers,
> Michele
>
> On 28/08/2012 09:39, Danny Miller wrote:
>> Could someone explain the difference between simple Kinematic and PPP 
>> Kinematic in RTKLib?
>>
>> Danny
>>
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