expand_polarizations

ska_sdp_func_python.visibility.operations.expand_polarizations(data, dtype=None)[source]

Expand number of polarizations to four Optionally change the data type

Parameters:

data – numpy array containing visibility data. It has dimensions (frequency, baselines, polarizations)
dtype – optional data type

Returns:

numpy array containing the input visibility data, where the polarizations dimension is fixed to 4 (data is copied)