def get_qubic_map(instrument, sampling, scene, input_maps, withplanck=True, covlim=0.1):
acq = QubicAcquisition(instrument, sampling, scene, photon_noise=True, effective_duration=1)
C = acq.get_convolution_peak_operator()
coverage = acq.get_coverage()
observed = coverage > covlim * np.max(coverage)
acq_restricted = acq[:, :, observed]
H = acq_restricted.get_operator()
x0_convolved = C(input_maps)
if not withplanck:
pack = PackOperator(observed, broadcast='rightward')
y_noiseless = H(pack(x0_convolved))
noise = acq.get_noise()
y = y_noiseless + noise
invntt = acq.get_invntt_operator()
A = H.T * invntt * H
b = (H.T * invntt)(y)
preconditioner = DiagonalOperator(1 / coverage[observed], broadcast='rightward')
solution_qubic = pcg(A, b, M=preconditioner, disp=True, tol=1e-3, maxiter=1000)
maps = pack.T(solution_qubic['x'])
maps[~observed] = 0
else:
acq_planck = PlanckAcquisition(150, acq.scene, true_sky=x0_convolved)#, fix_seed=True)
acq_fusion = QubicPlanckAcquisition(acq, acq_planck)
map_planck_obs=acq_planck.get_observation()
H = acq_fusion.get_operator()
invntt = acq_fusion.get_invntt_operator()
y = acq_fusion.get_observation()
A = H.T * invntt * H
b = H.T * invntt * y
solution_fusion = pcg(A, b, disp=True, maxiter=1000, tol=1e-3)
maps = solution_fusion['x']
maps[~observed] = 0
x0_convolved[~observed] = 0
return(maps, x0_convolved, observed)
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 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 test_noiseless():
sampling = create_random_pointings([0, 90], 100, 10)
acq_qubic = QubicAcquisition(150, sampling)
acq_planck = PlanckAcquisition(150, acq_qubic.scene, true_sky=SKY)
acq_fusion = QubicPlanckAcquisition(acq_qubic, acq_planck)
np.random.seed(0)
y1 = acq_fusion.get_observation()
np.random.seed(0)
y2 = acq_fusion.get_observation(noiseless=True) + acq_fusion.get_noise()
assert_same(y1, y2)
mp.figure(1)
_max = [300, 5, 5]
for i, (inp, rec, iqu) in enumerate(zip(maps_convolved.T, maps_recon.T, 'IQU')):
inp[cov < cov.max() * 0.01] = hp.UNSEEN
rec[cov < cov.max() * 0.01] = hp.UNSEEN
diff = inp - rec
diff[cov < cov.max() * 0.01] = hp.UNSEEN
hp.gnomview(inp, rot=center_gal, reso=5, xsize=700, fig=1,
sub=(3, 3, i + 1), min=-_max[i], max=_max[i], title='Input, {}'.format(iqu))
hp.gnomview(rec, rot=center_gal, reso=5, xsize=700, fig=1,
sub=(3, 3, i + 4), min=-_max[i], max=_max[i], title='Recon, {}'.format(iqu))
hp.gnomview(diff, rot=center_gal, reso=5, xsize=700, fig=1,
sub=(3, 3, i+7), min=-_max[i], max=_max[i], title='Diff, {}'.format(iqu))
# Now let's play with the fusion acquisition
planck = PlanckAcquisition(band, a.scene, true_sky=maps_convolved)
acq_fusion = QubicPlanckAcquisition(a, acq_planck)
TOD, maps_convolved = a.get_observation(x0)
maps_recon_fusion = a.tod2map(TOD, tol=tol)
mp.figure(2)
for i, (inp, rec, iqu) in enumerate(zip(maps_convolved.T, maps_recon_fusion.T, 'IQU')):
inp[cov < cov.max() * 0.01] = hp.UNSEEN
rec[cov < cov.max() * 0.01] = hp.UNSEEN
diff = inp - rec
diff[cov < cov.max() * 0.01] = hp.UNSEEN
hp.gnomview(inp, rot=center_gal, reso=5, xsize=700, fig=1,
sub=(3, 3, i + 1), min=-_max[i], max=_max[i], title='Input, {}'.format(iqu))
hp.gnomview(rec, rot=center_gal, reso=5, xsize=700, fig=1,
sub=(3, 3, i + 4), min=-_max[i], max=_max[i], title='Recon, {}'.format(iqu))
x0 = read_map(PATH + 'syn256_pol.fits')
q = MultiQubicInstrument(NPOINTS=NPOINTS,
NFREQS=NFREQS,
filter_name=filter_name,
detector_nep=detector_nep)
C_nf = q.get_convolution_peak_operator()
conv_sky_ = C_nf(x0)
fwhm_t = np.sqrt(q.synthbeam.peak150.fwhm**2 - C_nf.fwhm**2)
C_transf = HealpixConvolutionGaussianOperator(fwhm=fwhm_t)
acq = MultiQubicAcquisition(q, sampling, scene=scene)
acq_planck = PlanckAcquisition(np.int(filter_name / 1e9),
scene,
true_sky=conv_sky_)
H = acq.get_operator()
COV = acq.get_coverage(H)
conv_sky = C_transf(conv_sky_)
x_rec_fusion = read_map('maps_test/fusion_n{}_N{}_s{}_mi{}.fits'.format(
NFREQS, NPOINTS, len(sampling), maxiter))
x_rec_qubic = read_map('maps_test/qubic_n{}_N{}_s{}_mi{}.fits'.format(
NFREQS, NPOINTS, len(sampling), maxiter))
# some display
def display(input, msg, iplot=1):
racenter = 0.0 # deg
deccenter = -57.0 # deg
maxiter = 1000
tol = 5e-6
sky = read_map(PATH + 'syn256_pol.fits')
nside = 256
sampling = create_random_pointings([racenter, deccenter], 1000, 10)
scene = QubicScene(nside)
acq_qubic = QubicAcquisition(150, sampling, scene, effective_duration=1)
convolved_sky = acq_qubic.instrument.get_convolution_peak_operator()(sky)
cov = acq_qubic.get_coverage()
mask = cov < cov.max() * 0.2
acq_planck = PlanckAcquisition(150,
acq_qubic.scene,
true_sky=convolved_sky,
mask=mask)
acq_fusion = QubicPlanckAcquisition(acq_qubic, acq_planck)
H = acq_fusion.get_operator()
invntt = acq_fusion.get_invntt_operator()
y = acq_fusion.get_observation()
A = H.T * invntt * H
b = H.T * invntt * y
solution_fusion = pcg(A, b, disp=True, maxiter=maxiter, tol=tol)
acq_qubic = QubicAcquisition(150, sampling, scene, effective_duration=1)
H = acq_qubic.get_operator()
invntt = acq_qubic.get_invntt_operator()
maps = getmapsready(allfiles[i], newns, pixok)
allmaps[i,:,:] = maps[pixok,:].T
meanmaps = np.mean(allmaps,axis=0)
iqumeanmaps = np.zeros((12*newns**2, 3))
for i in [0,1,2]: iqumeanmaps[pixok, i] = meanmaps[i,:]
display(iqumeanmaps, range=[1, 1, 1])
from qubic import (QubicAcquisition,
PlanckAcquisition,
QubicPlanckAcquisition, QubicScene)
nside = 256
scene = QubicScene(nside)
sky = scene.zeros()
acq_planck = PlanckAcquisition(150, scene, true_sky=sky)
obs_planck = acq_planck.get_observation()
Iplanck = hp.ud_grade(obs_planck[:,0], nside_out=newns)
Qplanck = hp.ud_grade(obs_planck[:,1], nside_out=newns)
Uplanck = hp.ud_grade(obs_planck[:,2], nside_out=newns)
planckmaps = np.array([Iplanck, Qplanck, Uplanck]).T
figure()
clf()
display(iqumeanmaps, range=[1, 1, 1])
figure()
clf()
display(iqumeanmaps-planckmaps, range=[1, 1, 1])
clf()