sample conversion

jmcvey3 · Nov 27, 2023 · 9ac3f91 · 9ac3f91
1 parent c143cc3
commit 9ac3f91
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Showing 2 changed files with 6 additions and 4 deletions.
diff --git a/dolfyn/io/nortek2.py b/dolfyn/io/nortek2.py
@@ -477,12 +477,14 @@ def _reorg(dat):
             if ky.endswith('raw') and not ky.endswith('_altraw'):
                  outdat['data_vars'].pop(ky)
         outdat['coords']['time_altraw'] = outdat['coords'].pop('timeraw')
+        outdat['data_vars']['samp_altraw'] =  outdat['data_vars']['samp_altraw'].astype('float32') / 2**8  # convert "signed fractional" to float
 
         # Read altimeter status
-        alt_status = lib._alt_status2data(outdat['data_vars']['status_alt'])
-        for ky in alt_status:
+        outdat['data_vars'].pop('status_altraw')
+        status_alt = lib._alt_status2data(outdat['data_vars']['status_alt'])
+        for ky in status_alt:
             outdat['attrs'][ky] = lib._collapse(
-                alt_status[ky].astype('uint8'), name=ky)
+                status_alt[ky].astype('uint8'), name=ky)
         outdat['data_vars'].pop('status_alt')
 
         # Power level index

diff --git a/dolfyn/io/nortek2_defs.py b/dolfyn/io/nortek2_defs.py
@@ -346,7 +346,7 @@ def _calc_burst_struct(config, nb, nc):
             ('nsamp_alt', 'I', [], None, '1', 'Number of Altimeter Samples'),
             ('dsamp_alt', 'H', [], _LinFunc(0.0001, dtype=dt32), 'm',
              'Altimeter Distance between Samples'),
-            ('samp_alt', 'h', [], None, '1', 'Altimeter Samples (signed fractional)'),
+            ('samp_alt', 'h', [], None, '1', 'Altimeter Samples'),
         ]
     if flags['ahrs']:
         dd += _ahrs_def