[FOSS-GPS] FOSS-GPS Digest, Vol 111, Issue 3
Иван Рыкин
vanya-t-mac at mail.ru
Fri Mar 15 01:37:40 PDT 2019
If I want to get the precise coordinates of base up to 10 sm accuracy, I need to use only ppp mode?
>Четверг, 14 марта 2019, 22:23 +03:00 от atanu santra <bubunhhh at gmail.com>:
>
>1. If you want to get a fix coordinate of your base you can use 'OPUS' or 'AUSPOS' online services.
>2. If you get position of your base using differential or rtk method use nearest igs station observation file and associate navigation file.
>You may also use broadcast ehemerides or final ephemeris for more precise solution.
>3. Or you may use static ppp using final ephemeris, clk and antenna files etc.
>On Fri, 15 Mar 2019 12:30 am < foss-gps-request at lists.osgeo.org wrote:
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>>Today's Topics:
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>> 1. Rtklib post process (atanu santra)
>>
>>
>>----------------------------------------------------------------------
>>
>>Message: 1
>>Date: Fri, 15 Mar 2019 00:16:19 +0530
>>From: atanu santra < bubunhhh at gmail.com >
>>To: foss-gps at lists.osgeo.org
>>Subject: [FOSS-GPS] Rtklib post process
>>Message-ID:
>> < CADLYUbiAmg0NtTx+vYP58Tgpwxvo_zFd7KXOd30-RMPO8g8XZw at mail.gmail.com >
>>Content-Type: text/plain; charset="utf-8"
>>
>>Dear Colleague,
>>
>>1. a) If you want to do differential GNSS, please do the following :
>> run the rtkpost > enter the .o and .n file of Base and only .o file of
>>rover as input> select dgnss in processing option> execute.
>>b) If the data of Base is of same day as rover and of 24 hrs then you will
>>get the dgnss solution, no issue will be arisen.
>>c) yes you can use final ephemeris of constellations but the observation
>>files should be of same day.
>>
>>2. If you want to do ppp for single receiver then you need final
>>ehemerides, clk file, erp, antx file etc.
>>
>>Best regards
>>
>>On Wed, 13 Mar 2019 6:53 pm < foss-gps-request at lists.osgeo.org wrote:
>>
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>>> Today's Topics:
>>>
>>> 1. RTK_LIB_postprocessing (Иван Рыкин)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Wed, 13 Mar 2019 15:55:53 +0300
>>> From: Иван Рыкин < vanya-t-mac at mail.ru >
>>> To: foss-gps at lists.osgeo.org
>>> Subject: [FOSS-GPS] RTK_LIB_postprocessing
>>> Message-ID: < 1552481753.530901690 at f495.i.mail.ru >
>>> Content-Type: text/plain; charset="utf-8"
>>>
>>>
>>> Hi,
>>> I am a student of SPBU. I am learning RTKlib
>>> how to equalize (postprocess) gnss base (2 hours observation) using
>>> reference station (24 hours observation). Rinex data available GPS
>>> and GLONASS.
>>> There are some questions:
>>>
>>> 1. What kind of data I need use for reference station, only
>>> navigation (.g and .n) and observation (.o or .d) ?
>>>
>>> 2 - What kind of data I need use for gnss base, only navigation
>>> (.g and .n) or observation (.o or .d) files too
>>> 3. What kind of data I need use for reference station
>>> and gnss base, only observation (.o or .d) files and as a navigation files
>>> only final ephemerides
>>>
>>> 4 - if we use final ephemerides we must use ppp-static or static?
>>>
>>> 5 - why is the difference between output data if we use , is it normal ?
>>>
>>> 6 - if my base is 10Hz, it means that every data must be 10Hz for getting
>>> the precise XYZ? Data from the Reference station and for example UAV must
>>> be the same 10Hz?
>>>
>>>
>>> thank you for answering these questions.
>>>
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