[FOSS-GPS] Kinematic vs PPP Kinematic?

[Michele Bavaro]

I am not aware of any uBlox LEA-6P?

I have and use regularly NEO-6P though, which has PPP and carrier phase 
output.
The only drawback of NEO6P is that it uses a simple crystal instead of a 
TCXO so the Doppler values will be generally quite high.
That does not impact the carrier phase output quality however: in zero 
baseline mode -in very good visibility conditions- "static" gives me 
just a few mm variance and zero mean.

As I mentioned ealier in PPP mode it does not make sense to talk about 
rover and base as it is a _standalone_ positioning mode.

The hacked version of RTKLIB for NV08C is actually here:
http://www.onetalent-gnss.com/ideas/usb-hw-receivers/denga10
and it's currently being updated according to the recently released 
document here:
http://www.nvs-gnss.com/support/documentation/item/32-binr-protocol-specification.html
for LLI and SBAS support.

Cheers,
Michele



On 28/08/2012 11:49, Danny Miller wrote:
> 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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