Changes between Initial Version and Version 1 of Processing/TeqcConversion


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Timestamp:
Jun 29, 2015 3:00:06 PM (4 years ago)
Author:
stgo
Comment:

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  • Processing/TeqcConversion

    v1 v1  
     1= Teqc Basestation conversion =
     2
     3Some flights will be provided with data from the ARSF basestation, grafnav may throw this error:
     4
     5{{{Error: Zero number of epochs in Default_9488_1008_054912.gpb}}}
     6
     7Which will probably be from attempting to convert a file group like this:
     8{{{
     9Default_9488_1008_054912.14S
     10Default_9488_1008_054912.80S
     11Default_9488_1008_054912.azi
     12Default_9488_1008_054912.ele
     13Default_9488_1008_054912.i00
     14Default_9488_1008_054912.iod
     15Default_9488_1008_054912.ion
     16Default_9488_1008_054912.m00
     17Default_9488_1008_054912.mp1
     18Default_9488_1008_054912.mp2
     19Default_9488_1008_054912.sn1
     20Default_9488_1008_054912.sn2
     21Default_9488_1008_054912.X01
     22Default_9488_1008_054912.X02
     23Default_9488_1008_054912.X06
     24Default_9488_1008_054912.X08
     25Default_9488_1008_054912.X12
     26Default_9488_1008_054912.X18
     27Default_9488_1008_054912.X22
     28Default_9488_1008_054912.X23
     29Default_9488_1008_054912.XCF
     30}}}
     31
     32
     33
     34You will need to convert and crop the basestation file. First you need to estimate how many surveys are within the file (if there is only one this might not be the solution you need). Remember to keep a backup copy of the original basestation files at all times.
     35
     36Run (I'm not sure this is the best way to get the information we need):
     37
     38{{{teqc Input.m00 > /tmp/teqc_output}}}
     39
     40Which should give a result similar to this:
     41
     42{{{
     43! Notice ! Leica MDB 130: survey starts @ 2014 Oct  8 05:49:39.700 GPS time
     44canceled point @ 2014 Oct  8 05:49:53.280
     45! Notice ! Leica MDB 130:   survey ends @ 2014 Oct  8 05:49:57.840 GPS time
     46! Notice ! Leica MDB 130: survey starts @ 2014 Oct  8 05:51:46.230 GPS time
     47! Notice ! Leica MDB 130:   survey ends @ 2014 Oct  8 08:12:50.890 GPS time
     48! Notice ! Leica MDB 130: survey starts @ 2014 Oct 27 22:05:46.560 GPS time
     49! Notice ! 2014 Oct 27 22:06:40.000: poss. incr. of sampling int. OR data gap of 1691648.000 seconds (min. dt found= 1.000 s)
     50! Notice ! Leica MDB 130:   survey ends @ 2014 Oct 28 00:14:50.090 GPS time
     51! Notice ! Leica MDB 130: survey starts @ 2014 Oct 28 23:33:16.890 GPS time
     52! Notice ! 2014 Oct 28 23:34:15.000: poss. incr. of sampling int. OR data gap of 83966.000 seconds (min. dt found= 1.000 s)
     53! Notice ! Leica MDB 130:   survey ends @ 2014 Oct 29 04:38:19.480 GPS time
     54! Notice ! Leica MDB 130: survey starts @ 2014 Oct 30 21:57:58.550 GPS time
     55! Notice ! 2014 Oct 30 21:58:49.000: poss. incr. of sampling int. OR data gap of 148830.000 seconds (min. dt found= 1.000 s)
     56! Notice ! Leica MDB 130:   survey ends @ 2014 Oct 30 23:42:33.960 GPS time
     57! Notice ! Leica MDB 130: survey starts @ 2014 Nov  4 21:51:29.850 GPS time
     58! Notice ! 2014 Nov  4 21:52:13.000: poss. incr. of sampling int. OR data gap of 425380.000 seconds (min. dt found= 1.000 s)
     59! Notice ! Leica MDB 130:   survey ends @ 2014 Nov  5 02:29:10.280 GPS time
     60! Notice ! Leica MDB 130: survey starts @ 2014 Nov 10 01:51:45.890 GPS time
     61! Notice ! 2014 Nov 10 01:52:40.000: poss. incr. of sampling int. OR data gap of 429810.000 seconds (min. dt found= 1.000 s)
     62! Notice ! Leica MDB 130:   survey ends @ 2014 Nov 10 03:25:57.670 GPS time
     63! Notice ! Leica MDB 130: survey starts @ 2014 Nov 10 23:15:16.090 GPS time
     64! Notice ! 2014 Nov 10 23:16:13.000: poss. incr. of sampling int. OR data gap of 71416.000 seconds (min. dt found= 1.000 s)
     65! Notice ! Leica MDB 130:   survey ends @ 2014 Nov 11 03:53:38.560 GPS time
     66}}}
     67
     68Use the above output to work out which survey you need, once known you can use the command:
     69
     70{{{teqc -st yymmddhhmmss -e yymmddhhmmss +nav output.14n input.m00 > output.14o}}}
     71
     72To produce the required files as .14n and .14o format where -st is the start date and time and -e is the end date and time. The created 14n/o files can then be used with grafnav without errors, this should produce data in 1 second intervals.