[FOSS-GPS] RTKLIB and Master Auxiliary approach

Sat Jun 16 06:53:01 PDT 2012

Dear Fabrizio

> So when I use Master auxiliary corrections it's a simple Nearest?
> What a pity. Because in high-speed moving vehicle apps I believe MAX is
> the best solution.

The implementation of MAC is not so difficult. Please
do it by yourself. All codes are open.

> What about RAIM algoriths to integrate in RTKLIB?

> Do you think it could be possible to integrate this or another RAIM
> algorithm in RTKLIB?

I tried several SSE algorithms in previous versions but
most of them are disabled in current, because they
sometimes much degrade solution availability. It's just
a trade-off problem.

In my opinion, RTK alone is not suitable to safety critical
applications because it is hard to avoid all of wrong
ambiguity resolution (miss-fix) without any external aid
like INS.

I agree reliable RTK is an important issue to investigate.

Tomoji TAKASU

--------------------------------------------------
From: "Fabrizio Toni" <fabrizio.toni at techplanet.it>
Sent: Saturday, June 16, 2012 10:08 PM
To: "Open Source GPS-related discussion and support" 
<foss-gps at lists.osgeo.org>
Subject: Re: [FOSS-GPS] RTKLIB and Master Auxiliary approach

> So when I use Master auxiliary corrections it's a simple Nearest?
> What a pity. Because in high-speed moving vehicle apps I believe MAX is
> the best solution.
> What about RAIM algoriths to integrate in RTKLIB? In all safety of life
> applications is a MUST the integrity risk real-time monitoring.
> For example in railway we have very restricted requirements 10^-9 faults
> per hours (SIL4 normative
> http://en.wikipedia.org/wiki/Safety_Integrity_Level)
> I found this interesting paper:
> http://eprints.qut.edu.au/31007/1/c31007.pdf
> Do you think it could be possible to integrate this or another RAIM
> algorithm in RTKLIB?
> Regards
> -- 
>
> Fabrizio Toni*
> **//*//
>
>
> Il 16/06/2012 14:16, Tomoji TAKASU ha scritto:
>> Dear Fabrizio
>>
>>> My question is: "When I get  Master auxiliary corrections from
>>> Leica geosystems network, RTKLIB uses Auxiliary stations message?
>>
>> No.
>>
>> RTKLIB does not support MAC.
>>
>> You need to convert MAC corrections to VRS observation
>> data by yourself.
>>
>> regards,
>>
>> Tomoji TAKASU
>>
>> --------------------------------------------------
>> From: "Fabrizio Toni" <fabrizio.toni at techplanet.it>
>> Sent: Saturday, June 16, 2012 9:04 PM
>> To: <foss-gps at lists.osgeo.org>
>> Subject: [FOSS-GPS] RTKLIB and Master Auxiliary approach
>>
>>> Hi all,
>>> I have to conduct an experimentation for railway application to localize
>>> the trains and eventually distinguish the track in parellal tracks
>>> scenarios.
>>> The train could run up to 300 km/h. I'm testing a Denga10 receiver
>>> (http://www.onetalent-gnss.com/ideas/usb-hw-receivers/denga10) 10 Hz
>>> output and a low cost antenna Tallysmann TW2410. I'm using RTKNavi and 2
>>> Gnss permanent station networks (Italpos Leica Geosystems and Netgeo
>>> Topcon). My question is: "When I get  Master auxiliary corrections from
>>> Leica geosystems network, RTKLIB uses Auxiliary stations message? If so,
>>> where is locate the source code for the positioning?
>>> Then I bougth also another Denga10 to set up an RTK system: one Denga10
>>> as Master base and one as Rover. I'll post the results asap.
>>> Regards
>>> -- 
>>>
>>> Fabrizio Toni*
>>> **//*//
>>>
>>>
>>
>>
>>
>>> _______________________________________________
>>> This message is sent to you from FOSS-GPS at lists.osgeo.org mailing list.
>>> Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your
>>> subscription
>>> For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS
>>>
>>
>>
>> _______________________________________________
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>> Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your
>> subscription
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>
>
> -- 
>
>
> Fabrizio Toni*
> **/TECH PLANET S.r.l./**/
> /*/Via A. Zottoli, 32/A
> 00125 Roma - Italia
> *Tel. *(+39) 347-0666704
> *e-*/*/mail/*/: info at techplanet.it <mailto:fabrizio.toni at techplanet.it>
> *sito web*:http://www.techplanet.it <http://www.techplanet.it/>/
>
>

> So when I use Master auxiliary corrections it's a simple Nearest?
> What a pity. Because in high-speed moving vehicle apps I believe MAX is 
> the best solution.
> What about RAIM algoriths to integrate in RTKLIB? In all safety of life 
> applications is a MUST the integrity risk real-time monitoring.
> For example in railway we have very restricted requirements 10^-9 faults 
> per hours (SIL4 normative 
> http://en.wikipedia.org/wiki/Safety_Integrity_Level)
> I found this interesting paper:
> http://eprints.qut.edu.au/31007/1/c31007.pdf
> Do you think it could be possible to integrate this or another RAIM 
> algorithm in RTKLIB?
> Regards
>
> --
> Fabrizio Toni
>
>
>
> Il 16/06/2012 14:16, Tomoji TAKASU ha scritto:
>  Dear Fabrizio
>
>
>    My question is: "When I get Master auxiliary corrections from
>    Leica geosystems network, RTKLIB uses Auxiliary stations message?
>
>
>  No.
>
>  RTKLIB does not support MAC.
>
>  You need to convert MAC corrections to VRS observation
>  data by yourself.
>
>  regards,
>
>  Tomoji TAKASU
>
>  -------------------------------------------------- 
>  From: "Fabrizio Toni" <fabrizio.toni at techplanet.it>
>  Sent: Saturday, June 16, 2012 9:04 PM
>  To: <foss-gps at lists.osgeo.org>
>  Subject: [FOSS-GPS] RTKLIB and Master Auxiliary approach
>
>
>    Hi all,
>    I have to conduct an experimentation for railway application to 
> localize
>    the trains and eventually distinguish the track in parellal tracks
>    scenarios.
>    The train could run up to 300 km/h. I'm testing a Denga10 receiver
>    (http://www.onetalent-gnss.com/ideas/usb-hw-receivers/denga10) 10 Hz
>    output and a low cost antenna Tallysmann TW2410. I'm using RTKNavi and 
> 2
>    Gnss permanent station networks (Italpos Leica Geosystems and Netgeo
>    Topcon). My question is: "When I get Master auxiliary corrections 
> from
>    Leica geosystems network, RTKLIB uses Auxiliary stations message? If 
> so,
>    where is locate the source code for the positioning?
>    Then I bougth also another Denga10 to set up an RTK system: one Denga10
>    as Master base and one as Rover. I'll post the results asap.
>    Regards
>    --
>
>    Fabrizio Toni*
>    **//*//
>
>
>
>
>
>
>
>    _______________________________________________
>    This message is sent to you from FOSS-GPS at lists.osgeo.org mailing list.
>    Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your 
> subscription
>    For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS
>
>
>
>
>  _______________________________________________
>  This message is sent to you from FOSS-GPS at lists.osgeo.org mailing list.
>  Visit http://lists.osgeo.org/mailman/listinfo/foss-gps to manage your 
> subscription
>  For more information, check http://wiki.osgeo.org/wiki/FOSS-GPS
>
>
>
>
> -- 
>
>
>
>
> Fabrizio Toni
> TECH PLANET S.r.l.
> Via A. Zottoli, 32/A
> 00125 Roma - Italia
> Tel. (+39) 347-0666704
> e-mail: info at techplanet.it
> sito web: http://www.techplanet.it
>

> _______________________________________________
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> 