FEE_primary_beam

Tests for the functions in WODEN/src/FEE_primary_beam.c.

test_RTS_MWAFEEInit.c

create_sky_model::RTS_MWAFEEInit reads in stored spherical harmonic coefficients from mwa_full_embedded_element_pattern.h5 and stores them in an RTS_MWA_FEE_beam_t struct, to be used later in MWA FEE beam calculations. There are four generated arrays that matter, which are:

RTS_MWA_FEE_beam_t->Q1 (double _Complex)
RTS_MWA_FEE_beam_t->Q2 (double _Complex)
RTS_MWA_FEE_beam_t->M (double)
RTS_MWA_FEE_beam_t->N (double)

The MWA beam pointing direction on the sky is controlled by a set of 16 delays. A different delay setting is stored in a different table in the hdf5 file. In these tests, three different delays settings are tested at 50MHz, 150MHz, and 250MHz (a total of nine tests). For each combination of settings, the values of the four arrays are tested at 6 locations against stored known values ( which can be found in test_RTS_MWAFEEInit.h), and must be within an absolute tolerance of 1e-7 to pass. Only six array entries each are tested purely to keep the stored values to compare to down a reasonable number (but suffice as a test that things are working correctly).