def __init__(self, nside=256, kind='IQU', absolute=False,
temperature=2.7255, summer=False):
"""
Parameters
----------
nside : int, optional
The Healpix scene's nside.
kind : 'I', 'QU' or 'IQU', optional
The sky kind: 'I' for intensity-only, 'QU' for Q and U maps,
and 'IQU' for intensity plus QU maps.
absolute : boolean, optional
If true, the scene pixel values include the CMB background and the
fluctuations in units of Kelvin, otherwise it only represents the
fluctuations, in microKelvin.
temperature : float, optional
The CMB temperature used to convert a temperature fluctuation into
power fluctuation (if absolute is False). The default value is
taken from Fixsen et al. 2009.
summer : boolean, optional
If true, Dome C summer weather conditions are assumed for the
atmosphere.
"""
if summer:
self.atmosphere = Atmosphere(233., 0.05, 1.)
else:
self.atmosphere = Atmosphere(200., 0.015, 1.)
SceneHealpixCMB.__init__(self, nside, kind=kind, absolute=absolute,
temperature=temperature)
def test():
np.random.seed(0)
scene = SceneHealpixCMB(256, kind='IQU')
acq = PlanckAcquisition(150, scene, true_sky=SKY)
obs = acq.get_observation()
invNtt = acq.get_invntt_operator()
chi2_red = np.sum((obs - SKY) * invNtt(obs - SKY) / SKY.size)
assert abs(chi2_red - 1) <= 0.001
def __init__(self, d):
"""
Parameters
----------
nside : int, optional
The Healpix scene's nside.
kind : 'I', 'QU' or 'IQU', optional
The sky kind: 'I' for intensity-only, 'QU' for Q and U maps,
and 'IQU' for intensity plus QU maps.
absolute : boolean, optional
If true, the scene pixel values include the CMB background and the
fluctuations in units of Kelvin, otherwise it only represents the
fluctuations, in microKelvin.
temperature : float, optional
The CMB temperature used to convert a temperature fluctuation into
power fluctuation (if absolute is False). The default value is
taken from Fixsen et al. 2009.
summer : boolean, optional
If true, Dome C summer weather conditions are assumed for the
atmosphere.
"""
nside = d['nside']
kind = d['kind']
absolute = d['absolute']
temperature = d['temperature']
summer = d['summer']
if summer:
self.atmosphere = Atmosphere(233., 0.05, 1.)
else:
self.atmosphere = Atmosphere(200., 0.015, 1.)
SceneHealpixCMB.__init__(self,
nside,
kind=kind,
absolute=absolute,
temperature=temperature)
def write(on, off, r, nside, idet, theta_max=45, syb_f=None, NPOINTS=1):
path = '/home/fincardona/Qubic/spatial_extension/maps/mono'
scene = SceneHealpixCMB(nside, kind='I')
grid = np.concatenate([np.linspace(cut_on, cut_off, res)
for cut_on, cut_off, res in zip(on, off, r)])
for nu in grid:
q = MyQubicInstrument(
filter_nu=nu, filter_relative_bandwidth=1/nu,
synthbeam_dtype=float, synthbeam_fraction=syb_f)
sb = q.get_synthbeam(scene, idet, theta_max, NPOINTS=NPOINTS)
sb_direct_ga = q.direct_convolution(
scene, idet, theta_max, NPOINTS=NPOINTS)
write_map(
'%s/interfero/sb_nside{}_nu{:.3e}_idet{}_tmax{}_Npoints{}.fits'.
format(nside, nu, idet, theta_max, NPOINTS) % path,
np.sum(sb, axis=0))
write_map(
'%s/direct_conv/dc_nside{}_nu{:.3e}_idet{}_tmax{}_sybf{}_Npoints{}.fits'.format(nside, nu, idet, theta_max, syb_f,
NPOINTS) % path, np.sum(sb_direct_ga, axis=0))
def write(on, off, r, nside, idet, theta_max=45, syb_f=None):
path = '/home/fincardona/Qubic/Compare_poly/maps/mono'
scene = SceneHealpixCMB(nside, kind='I')
grid = np.concatenate([
np.linspace(cut_on, cut_off, res)
for cut_on, cut_off, res in zip(on, off, r)
])
sb = np.empty(12 * nside**2)
for nu in grid:
q = MyQubicInstrument(filter_nu=nu,
filter_relative_bandwidth=1 / nu,
synthbeam_dtype=float,
synthbeam_fraction=syb_f)
sb = q.get_synthbeam(scene, idet, theta_max)
sb_direct_ga = q.direct_convolution(scene, idet, theta_max)
write_map(
'%s/interfero/sb_nside{}_nu{:.3e}_idet{}_tmax{}.fits'.format(
nside, nu, idet, theta_max) % path, sb)
write_map(
'%s/direct_conv/dc_nside{}_nu{:.3e}_idet{}_tmax{}_sybf{}.fits'.
format(nside, nu, idet, theta_max, syb_f) % path, sb_direct_ga)
def __init__(self, d):
"""
Parameters
----------
nside : int, optional
The Healpix scene's nside.
kind : 'I', 'QU' or 'IQU', optional
The sky kind: 'I' for intensity-only, 'QU' for Q and U maps,
and 'IQU' for intensity plus QU maps.
absolute : boolean, optional
If true, the scene pixel values include the CMB background and the
fluctuations in units of Kelvin, otherwise it only represents the
fluctuations, in microKelvin.
temperature : float, optional
The CMB temperature used to convert a temperature fluctuation into
power fluctuation (if absolute is False). The default value is
taken from Fixsen et al. 2009.
summer : boolean, optional
If true, Dome C summer weather conditions are assumed for the
atmosphere.
"""
nside = d['nside']
kind = d['kind']
absolute = d['absolute']
temperature = d['temperature']
summer = d['summer']
#################### Atmosphere emissivity - from JCH analysis of LLAMA site-testing data #############
#### Atmosphere Temprature
if d['TemperatureAtmosphere150'] is None:
d['TemperatureAtmosphere150'] = 270.
if d['TemperatureAtmosphere220'] is None:
d['TemperatureAtmosphere220'] = 270.
fT = scipy.interpolate.interp1d(
[150., 220.],
[d['TemperatureAtmosphere150'], d['TemperatureAtmosphere220']],
fill_value="extrapolate")
#### Atmosphere Emissivity
if d['EmissivityAtmosphere150'] is None:
d['EmissivityAtmosphere150'] = 0.081
if d['EmissivityAtmosphere220'] is None:
d['EmissivityAtmosphere220'] = 0.138
fE = scipy.interpolate.interp1d(
[150., 220.],
[d['EmissivityAtmosphere150'], d['EmissivityAtmosphere220']],
fill_value="extrapolate")
self.atmosphere = Atmosphere(fT(d['filter_nu'] / 1e9),
fE(d['filter_nu'] / 1e9), 1.)
########################################################################################################
################### Old code - Very wrong - Assumes an optimistic Dome C !!! ###########################
# if summer:
# self.atmosphere = Atmosphere(233., 0.05, 1.)
# else:
# self.atmosphere = Atmosphere(200., 0.015, 1.)
########################################################################################################
SceneHealpixCMB.__init__(self,
nside,
kind=kind,
absolute=absolute,
temperature=temperature)
syb_ref = q.get_synthbeam(scene, idet, theta_max=theta_max)
syb_ga = q.direct_convolution(scene, idet, theta_max=theta_max)
return syb_ref, syb_ga
def deltaEoverE(fwhm150, scene, nu, idet, theta_max, syb_f):
syb_ref, syb_ga = sybs(fwhm150, scene, nu, idet, theta_max, syb_f)
return (np.sum(syb_ref) - np.sum(syb_ga)) / np.sum(syb_ref)
def residuals(fwhm150, scene, nu, idet, theta_max, syb_f):
syb_ref, syb_ga = sybs(fwhm150, scene, nu, idet, theta_max, syb_f)
syb_ref /= np.sum(syb_ref)
syb_ga /= np.sum(syb_ga)
return np.sum((syb_ref - syb_ga)**2)
nside = 1024
scene = SceneHealpixCMB(nside, kind='I')
nu = 150e9 #fixed
syb_f = 1 #fixed
det = np.arange(0, 992)
t_max = [30, 60]
bounds = [0.37, 0.39]
fwhm150 = np.zeros((len(t_max), 2))
bar = progress_bar(len(det))
for idet in det:
for j, theta_max in enumerate(t_max):
fwhm150_energy = sp.optimize.brentq(