hera_sim.utils

Utility module.

Functions

Jy2T(freqs, omega_p)	Convert Janskys to Kelvin.
calc_max_fringe_rate(fqs, ew_bl_len_ns)	Calculate the max fringe-rate seen by an East-West baseline.
compute_ha(lsts, ra)	Compute hour angle from local sidereal time and right ascension.
find_baseline_orientations(antenna_numbers, ...)	Find the orientation of each redundant baseline group.
gen_delay_filter(freqs, bl_len_ns[, ...])	Generate a delay filter in delay space.
gen_fringe_filter(lsts, freqs, ew_bl_len_ns)	Generate a fringe rate filter in fringe-rate & freq space.
gen_white_noise([size, rng])	Produce complex Gaussian noise with unity variance.
get_bl_len_magnitude(bl_len_ns)	Get the magnitude of the length of the given baseline.
jansky_to_kelvin(freqs, omega_p)	Return Kelvin -> Jy conversion as a function of frequency.
matmul(left, right[, use_numba])	Helper function for matrix multiplies used in mutual coupling sims.
reshape_vis(vis, ant_1_array, ant_2_array, ...)	Reshaping helper for mutual coupling sims.
rough_delay_filter(data[, freqs, bl_len_ns, ...])	A rough low-pass delay filter of data array along last axis.
rough_fringe_filter(data[, lsts, freqs, ...])	A rough fringe rate filter of data along zeroth axis.
tanh_window(x[, x_min, x_max, scale_low, ...])
wrap2pipi(a)	Wrap values of an array to [-π; +π] modulo 2π.