def make_clzz(self, pk):
"""Make an angular powerspectrum from the input matter powerspectrum.
Uses the lmax and frequencies from the telescope object.
Parameters
----------
pk : function, np.ndarray -> np.ndarray
The input powerspectrum (must be vectorized).
Returns
-------
aps : np.ndarray[lmax+1, nfreq, nfreq]
The angular powerspectrum.
"""
crt = corr21cm.Corr21cm(ps=pk, redshift=1.5)
crt.ps_2d = True
clzz = skymodel.im21cm_model(
self.telescope.lmax,
self.telescope.frequencies,
self.telescope.num_pol_sky,
cr=crt,
temponly=True,
)
print("Rank: %i - Finished making band." % mpiutil.rank)
return clzz
def signal(self):
"""Compute the signal covariance matrix (on the sky).
Returns
-------
cv_fg : np.ndarray[pol2, pol1, l, freq1, freq2]
"""
if self._cvsg is None:
npol = self.telescope.num_pol_sky
if npol != 1 and npol != 3 and npol != 4:
raise Exception("Can only handle unpolarised only (num_pol_sky \
= 1), or I, Q and U (num_pol_sky = 3).")
self._cvsg = skymodel.im21cm_model(self.telescope.lmax,
self.telescope.frequencies, npol)
return self._cvsg
def signal(self):
"""Compute the signal covariance matrix (on the sky).
Returns
-------
cv_fg : np.ndarray[pol2, pol1, l, freq1, freq2]
"""
if self._cvsg is None:
npol = self.telescope.num_pol_sky
if npol != 1 and npol != 3 and npol != 4:
raise Exception("Can only handle unpolarised only (num_pol_sky \
= 1), or I, Q and U (num_pol_sky = 3).")
self._cvsg = skymodel.im21cm_model(self.telescope.lmax,
self.telescope.frequencies, npol)
return self._cvsg
def make_clzz(self, pk):
"""Make an angular powerspectrum from the input matter powerspectrum.
Uses the lmax and frequencies from the telescope object.
Parameters
----------
pk : function, np.ndarray -> np.ndarray
The input powerspectrum (must be vectorized).
Returns
-------
aps : np.ndarray[lmax+1, nfreq, nfreq]
The angular powerspectrum.
"""
crt = corr21cm.Corr21cm(ps=pk, redshift=1.5)
crt.ps_2d = True
clzz = skymodel.im21cm_model(self.telescope.lmax, self.telescope.frequencies,
self.telescope.num_pol_sky, cr = crt, temponly=True)
print "Rank: %i - Finished making band." % mpiutil.rank
return clzz
