.. _BDAAverager.json#/:

BDAAverager
===========

Average data in time and/or frequency, depending on baseline lenghts. For shorter baselines, the averaging factor is higher than for longer baselines `.`


.. _BDAAverager.json#/inputs:

inputs
******


.. _BDAAverager.json#/inputs/type:

type
++++

:type: ``string``

:default: ``bdaaverager``

:doc: Case-insensitive step type; must be 'bdaaverager' `.`


.. _BDAAverager.json#/inputs/frequencybase:

frequencybase
+++++++++++++

:type: ``double``

:doc: The baseline length (in meters) after which the averager does not perform any averaging over frequencies. The number of channels for a baseline becomes baseline length / frequencybase * original number of channels, rounded up. The minchannels setting specifies the minimum number of channels. The maximum numbef of channels is the original number of channels. A value of 0.0 indicates that no frequency averaging is performed. When using BDA in combination with DdeCal, the maximum number of channels  averaged should be smaller than or equal to the number of channels in  one channel block `.`

:default: ``0.0``


.. _BDAAverager.json#/inputs/maxinterval:

maxinterval
+++++++++++

:type: ``int``

:doc: The maximum interval duration (in seconds), when averaging over time. This setting allows limiting the time averaging factor for short baselines. This value is rounded down to the nearest multiple of the integration time. When this value is 0.0, there is no limit on the interval duration. When using BDA in combination with DdeCal, the maximum number of averaged intervals should be smaller than or equal to the solution interval `.`

:default: ``0.0``


.. _BDAAverager.json#/inputs/minchannels:

minchannels
+++++++++++

:type: ``int``

:doc: The minimum number of channels in an averaged baseline. This setting allows limiting the frequency averaging factor for short baselines `.`

:default: ``1``


.. _BDAAverager.json#/inputs/step_name:

step_name
+++++++++

:type: ``string``

:default: ``bdaaverage``

:doc: unique name for the step `.`


.. _BDAAverager.json#/inputs/timebase:

timebase
++++++++

:type: ``double``

:doc: The baseline length (in meters) after which the averager does not perform any averaging over time. The BDA time averaging factor for a baseline becomes timebase / baseline length, rounded down. The maximum time interval will be clipped to maxinterval. A value of 0.0 indicates that no time averaging is performed `.`

:default: ``0.0``