Re: [Gpsbabel-misc] Signal to noise ratio
Brought to you by:
robertl
From: tsteven4 <tst...@gm...> - 2015-07-03 23:07:37
|
Robert, The hash indicates the satellite is used. Perhaps it would be enlightening to add -D 6 to your command line. If you could sent that output, and the gpsbabel created csv file, and the proprietary csv file maybe we can figure something out. Is gpsbabel creating a data.bin file in the current directory? If so it may be useful to have that as well. None of the sample bin files we have in our regression have SID-ELE-AZI-SNR data, so it wouldn't be surprising if something doesn't work. Steve On 7/3/2015 11:06 AM, Robert Luben wrote: > > It may be post-processing, but the GPSBabel csv output looks a little odd > with some SID-ELE-AZI-SNR blocks starting with a hash and some not and > large numbers appearing in the last block. Occasionally the last block > will have a double dash (eg 13--25024). I have pasted below equivalent > lines from the two csv outputs which are pretty typical to show you > what I > mean. (Proprietary SNR: 00,37,29,24 etc, GPSBabel SNR: 11,11, ...,31028) > > Proprietary: > 1, T, 2015/01/01, 12:01:01, 2015/01/01, 12:01:01, 0, DGPS, > 52.00000000, N, > 1.20000000, E, 79.034 M, 2.504 km/h, 0.000000, 0, 0.000, 1.50, 1.20, > 0.91, > 7/11, > 21-00-00-00;05-00-00-37;07-00-00-29;13-00-00-24;19-00-00-24;28-00-00-22;15-00-00-35;27-00-00-00;30-00-00-27;20-00-00-00;10-00-00-00, > > 0.29 M > > GPSBabel: > 1,T,2015/01/01,12:01:01.000,DGPS,52.000000,N,1.200000,E,79.034 m,2.504 > km/h,1.50,1.20,0.91,7(11),21-11;#05-11;#07-11;#13-11;#19-11;#28-11;#15-11;27-11;#30-11;20-11;10-31028, > > 0.29 m, > > I have compiled a few times with a modified mtk_logger.cc to understand > the code a bit better - I'll post a patch if I get anywhere. > > tsteven4, I have tried several output formats (including GPX and nmea), > but SNR is not shown. I am using the csv option of mtk, which is the > closest to what I need, like this: > > gpsbabel -t -w -i mtk,csv=test.csv -f /dev/ttyACM0 -o gpx -F test.gpx > > > > On Tue, 30 Jun 2015, Robert Lipe wrote: > >> It's possible that the provided software is doing some clever >> post-processing of the data. As shown in the link I gave you to the >> code, we don't do anything other than read the bytes and put them in >> the output. >> >> If you have additional documention on what those fields mean from the >> unit or have additional processing on what we could do with those >> fields to be more helpful, I'd welcome a patch. >> >> RJL > > > ------------------------------------------------------------------------------ > Don't Limit Your Business. Reach for the Cloud. > GigeNET's Cloud Solutions provide you with the tools and support that > you need to offload your IT needs and focus on growing your business. > Configured For All Businesses. Start Your Cloud Today. > https://www.gigenetcloud.com/ > > > _______________________________________________ > Gpsbabel-misc mailing list http://www.gpsbabel.org > Gps...@li... > To unsubscribe, change list options, or see archives, visit: > https://lists.sourceforge.net/lists/listinfo/gpsbabel-misc |