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RTKCONV not processing hemisphere BIN 65 66 GLONASS messages #351
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Use receiver option -ENAGLO with message bin 65 and 66. |
And there is an issue as I vaguely recall that hemisphere will only send the ephemeris information when it first decodes it, but not thereafter. So RTKCONV can repeat at the rate you ask, but if the hemisphere device is already active you might not see an output for acquired ephemeris information. Read here for the details: https://hemispheregnss.com/gnssreference/whnjs_nc.htm |
That seems to have added the GLONASS records.
Data record from obs file.
17 11 4 19 7 59.0000000 0 16G27G21G20G 8G18G10G16G15G13R 6R22R13
R 5R20R21R 4
I wasn't getting the Rxx records before.
When I submitted the obs file to NRC's PPP Direct site I got the following error
message
shopnail-2017-11-04.obs | Error : A duplicate data block has been found in your
RINEX observation file. Please correct and resubmit.
Filtering it through teqc allowed it to be processed on NRC's site but once
again the GLONASS records were missing.
A closer look at the obs file shows that I have two set of records for each
interval
17 11 4 19 7 57.0000000 0 9G27G21G20G 8G18G10G16G15G13
21185009.800 72265155.485 965.186 47.500
21461848.882 317167389.920 -1356.043 50.500
22919182.870 322874500.728 -3240.027 37.500
.....
17 11 4 19 7 57.0000000 0 16G27G21G20G 8G18G10G16G15G13R 6R22R13
R 5R20R21R 4
21185009.800 72265155.485 965.186 47.500
21461848.882 317167389.920 -1356.043 50.500
22919182.870 322874500.728 -3240.027 37.500
.....
The first without the GLONASS data and teqc must just be keeping the first one
it sees.
Not sure where to go from here...
…On 11/8/2017 12:08 PM, Tomoji Takasu wrote:
Use receiver option -ENAGLO with message bin 65 and 66.
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It seems due to a bug. It will be fixed in next release. Until the release, (1) Use bin 76 of Hemisphere instead of bin 96. RTKLIB/src/rcv/crescent.c L.158 (added):
|
Hi Tomoji,
Thank you for the quick response. I don't have the compiler tools to build the
Windows packages so I'll wait until it becomes part of the beta builds. Which
branch will this become part of? I do see where the code should be added, same
spot as in the decode bin 76 subroutine.
I ran into a similar issue when I logged both bin 76 and 96 messages. It would
create duplicate records that NRC CSRS-PPP would reject. The fix for that was
to filter through teqc to remove the duplicates. If using the Hemisphere RINEX
Desktop utility and logging bin 76 messages it wouldn't create an obs file,
probably because of the missing L2 data. I'm not sure if I tried just logging
bin 76 and post processing with RTKCONV. Now that I know how to deal with the
GLONASS data I'll revisit that.
|
It is fixed in 2.4.2 p13. |
Hi Tomoji, Thanks! |
Using an EOS Arrow 100 (L1 hemisphere) receiver and capturing BIN 1,65,66,80,64,95,96 messages with STRSVR. When processed with RTKCONV the resulting .obs does not include any GLONASS observations. When I use the Hemisphere Rinex Desktop utility those are included in the output. Have tried RTKLIB versions 2.4.2, 2.4.2p11, and the 2.4.3 branch with the same results.
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