def get_noise_photon(self, sampling, scene, out=None):
"""
Return the photon noise (#det, #sampling).
"""
nep_photon = self._get_noise_photon_nep(scene)
return Instrument.get_noise(self, sampling, nep=nep_photon, out=out)
def get_noise_photon(self, sampling, scene, out=None):
"""
Return the photon noise (#det, #sampling).
"""
nep_photon = self._get_noise_photon_nep(scene)
return Instrument.get_noise(self, sampling, nep=nep_photon, out=out)
def get_noise(self, sampling, out=None):
"""
Return a noisy timeline.
"""
return Instrument.get_noise(
self, sampling, sigma=self.detector.sigma,
fknee=self.detector.fknee, fslope=self.detector.fslope, out=out)
def get_noise_detector(self, sampling, out=None):
"""
Return the detector noise (#det, #sampling).
"""
return Instrument.get_noise(
self, sampling, nep=self.detector.nep, fknee=self.detector.fknee,
fslope=self.detector.fslope, out=out)
def get_noise_detector(self, sampling, out=None):
"""
Return the detector noise (#det, #sampling).
"""
return Instrument.get_noise(
self, sampling, nep=self.detector.nep, fknee=self.detector.fknee, fslope=self.detector.fslope, out=out
)
def get_invntt_operator(self, sampling):
"""
Return the inverse time-time noise correlation matrix as an Operator.
"""
return Instrument.get_invntt_operator(
self, sampling, sigma=self.detector.sigma,
fknee=self.detector.fknee, fslope=self.detector.fslope,
ncorr=self.detector.ncorr)
def get_invntt_operator(self, sampling):
"""
Return the inverse time-time noise correlation matrix as an Operator.
"""
return Instrument.get_invntt_operator(
self, sampling, fknee=self.detector.fknee,
fslope=self.detector.fslope, ncorr=self.detector.ncorr,
nep=self.detector.nep)
def test():
scene = Scene(1024)
instrument = Instrument('instrument', PackedTable((32, 32)))
sampling = Sampling(1000)
acq = Acquisition(instrument,
sampling,
scene,
nprocs_sampling=max(size // 2, 1))
print(acq.comm.rank, acq.instrument.detector.comm.rank, '/',
acq.instrument.detector.comm.size, acq.sampling.comm.rank, '/',
acq.sampling.comm.size)
def func3(shape):
instrument = Instrument('', PackedTable(shape))
acq = MyAcquisition3(instrument, sampling, scene)
noise = acq.get_noise()
assert noise.shape == (len(acq.instrument), len(acq.sampling))
assert_allclose(np.std(noise), sigma, rtol=1e-2)
def __init__(self, d):
"""
Parameters
----------
calibration : QubicCalibration
The calibration tree.
detector_fknee : array-like, optional
The detector 1/f knee frequency in Hertz.
detector_fslope : array-like, optional
The detector 1/f slope index.
detector_ncorr : int, optional
The detector 1/f correlation length.
detector_ngrids : int, optional
Number of detector grids.
detector_nep : array-like, optional
The detector NEP [W/sqrt(Hz)].
detector_tau : array-like, optional
The detector time constants in seconds.
filter_nu : float, optional
The filter central wavelength, in Hz.
filter_relative_bandwidth : float, optional
The filter relative bandwidth Δν/ν.
polarizer : boolean, optional
If true, the polarizer grid is present in the optics setup.
primary_beam : function f(theta [rad], phi [rad]), optional
The primary beam transmission function.
secondary_beam : function f(theta [rad], phi [rad]), optional
The secondary beam transmission function.
synthbeam_dtype : dtype, optional
The data type for the synthetic beams (default: float32).
It is the dtype used to store the values of the pointing matrix.
synthbeam_kmax : integer, optional
The diffraction order above which the peaks are ignored.
For instance, a value of kmax=2 will model the synthetic beam by
(2 * kmax + 1)**2 = 25 peaks and a value of kmax=0 will only sample
the central peak.
synthbeam_fraction: float, optional
The fraction of significant peaks retained for the computation
of the synthetic beam.
"""
if d['nf_sub'] is None and d['MultiBand'] == True:
raise ValueError, "Error: you want Multiband instrument but you have not specified the number of subband"
filter_nu = d['filter_nu']
filter_relative_bandwidth = d['filter_relative_bandwidth']
detector_fknee = d['detector_fknee']
detector_fslope = d['detector_fslope']
detector_ncorr = d['detector_ncorr']
detector_nep = d['detector_nep']
detector_ngrids = d['detector_ngrids']
detector_tau = d['detector_tau']
polarizer = d['polarizer']
synthbeam_dtype = np.float32
synthbeam_fraction = d['synthbeam_fraction']
synthbeam_kmax = d['synthbeam_kmax']
synthbeam_peak150_fwhm = np.radians(d['synthbeam_peak150_fwhm'])
ripples = d['ripples']
nripples = d['nripples']
primary_beam = None
secondary_beam = None
calibration = QubicCalibration(d)
self.calibration = calibration
layout = self._get_detector_layout(detector_ngrids, detector_nep,
detector_fknee, detector_fslope,
detector_ncorr, detector_tau)
Instrument.__init__(self, layout)
self.ripples = ripples
self.nripples = nripples
self._init_beams(primary_beam, secondary_beam)
self._init_filter(filter_nu, filter_relative_bandwidth)
self._init_horns()
self._init_optics(polarizer)
self._init_synthbeam(synthbeam_dtype, synthbeam_peak150_fwhm)
self.synthbeam.fraction = synthbeam_fraction
self.synthbeam.kmax = synthbeam_kmax
def __init__(self,
calibration=None,
detector_fknee=0,
detector_fslope=1,
detector_ncorr=10,
detector_nep=4.7e-17,
detector_ngrids=1,
detector_tau=0.01,
filter_nu=150e9,
filter_relative_bandwidth=0.25,
polarizer=True,
primary_beam=None,
secondary_beam=None,
synthbeam_dtype=np.float32,
synthbeam_fraction=0.99,
synthbeam_kmax=8,
synthbeam_peak150_fwhm=np.radians(0.39268176),
ripples=False,
nripples=0):
"""
Parameters
----------
calibration : QubicCalibration
The calibration tree.
detector_fknee : array-like, optional
The detector 1/f knee frequency in Hertz.
detector_fslope : array-like, optional
The detector 1/f slope index.
detector_ncorr : int, optional
The detector 1/f correlation length.
detector_ngrids : int, optional
Number of detector grids.
detector_nep : array-like, optional
The detector NEP [W/sqrt(Hz)].
detector_tau : array-like, optional
The detector time constants in seconds.
filter_nu : float, optional
The filter central wavelength, in Hz.
filter_relative_bandwidth : float, optional
The filter relative bandwidth Δν/ν.
polarizer : boolean, optional
If true, the polarizer grid is present in the optics setup.
primary_beam : function f(theta [rad], phi [rad]), optional
The primary beam transmission function.
secondary_beam : function f(theta [rad], phi [rad]), optional
The secondary beam transmission function.
synthbeam_dtype : dtype, optional
The data type for the synthetic beams (default: float32).
It is the dtype used to store the values of the pointing matrix.
synthbeam_kmax : integer, optional
The diffraction order above which the peaks are ignored.
For instance, a value of kmax=2 will model the synthetic beam by
(2 * kmax + 1)**2 = 25 peaks and a value of kmax=0 will only sample
the central peak.
synthbeam_fraction: float, optional
The fraction of significant peaks retained for the computation
of the synthetic beam.
"""
if calibration is None:
calibration = QubicCalibration()
self.calibration = calibration
layout = self._get_detector_layout(detector_ngrids, detector_nep,
detector_fknee, detector_fslope,
detector_ncorr, detector_tau)
Instrument.__init__(self, layout)
self.ripples = ripples
self.nripples = nripples
self._init_beams(primary_beam, secondary_beam)
self._init_filter(filter_nu, filter_relative_bandwidth)
self._init_horns()
self._init_optics(polarizer)
self._init_synthbeam(synthbeam_dtype, synthbeam_peak150_fwhm)
self.synthbeam.fraction = synthbeam_fraction
self.synthbeam.kmax = synthbeam_kmax
def __init__(self, name=None, calibration=None,
band=150,
detector_sigma=10, detector_fknee=0, detector_fslope=1,
detector_ncorr=10, detector_tau=0.01,
synthbeam_dtype=np.float32, synthbeam_fraction=0.99,
ngrids=2, nside=256, **keywords):
"""
Parameters
----------
name : str
Deprecated.
calibration : QubicCalibration
The calibration tree.
band : int or numpy array of two elements
Frequensies of light in GHz for two focal planes
detector_tau : array-like
The detector time constants in seconds.
detector_sigma : array-like
The standard deviation of the detector white noise component.
detector_fknee : array-like
The detector 1/f knee frequency in Hertz.
detector_fslope : array-like
The detector 1/f slope index.
detector_ncorr : int
The detector 1/f correlation length.
nside : int, optional
Deprecated.
synthbeam_dtype : dtype, optional
The data type for the synthetic beams (default: float32).
It is the dtype used to store the values of the pointing matrix.
synthbeam_fraction: float, optional
The fraction of significant peaks retained for the computation
of the synthetic beam.
ngrids : int, optional
Number of detector grids.
"""
if name is not None:
skind = ", kind='I'" if 'nopol' in name else ''
snside = ', nside={0}'.format(nside) if nside is not None else ''
warn('Please update your code:\nacq = QubicAcquisition(150, sam'
'pling{0}{1})\n'.format(skind, snside),
QubicDeprecationWarning)
name = name.replace(' ', '').lower()
names = 'monochromatic', 'monochromatic,qu', 'monochromatic,nopol'
if name not in names:
raise ValueError(
"The only modes implemented are {0}.".format(
strenum(names, 'and')))
self._init_deprecated_sky(name, band, nside)
if calibration is None:
calibration = QubicCalibration()
self.calibration = calibration
layout = self._get_detector_layout(
ngrids, detector_sigma, detector_fknee, detector_fslope,
detector_ncorr, detector_tau)
Instrument.__init__(self, 'QUBIC', layout)
self._init_primary_beam()
self._init_optics(**keywords)
self._init_horns()
self._init_synthetic_beam(synthbeam_dtype, synthbeam_fraction)
def test_pack_unpack():
layout = PackedTable(4, selection=[True, False, True, True])
instrument = Instrument("instrument", layout)
v = [1, 2, 3, 4]
assert_same(instrument.pack(v), [1, 3, 4])
assert_same(instrument.unpack([1, 3, 4]), [1, -1, 3, 4])
def __init__(self,
todfile,
invnttfile,
mapmaskfile,
convert,
ndetectors,
missing_value=None,
comm=MPI.COMM_WORLD):
# Get information from files
nslices, status = tmf.madmap1_nslices(invnttfile, ndetectors)
if status != 0: raise RuntimeError()
npixels_per_sample, nsamples, ncorrelations, status = tmf.madmap1_info(\
todfile, invnttfile, convert, ndetectors, nslices)
if status != 0: raise RuntimeError()
m = re.search(r'(?P<filename>.*)\[(?P<extname>\w+)\]$', mapmaskfile)
if m is None:
mask = pyfits.open(mapmaskfile)[0].data
else:
filename = m.group('filename')
extname = m.group('extname')
mask = pyfits.open(filename)[str(extname)].data #XXX Python3
if mask is None:
raise IOError('HDU ' + mapmaskfile + ' has no data.')
mapmask = np.zeros(mask.shape, dtype=bool)
if missing_value is None:
mapmask[mask != 0] = True
elif np.isnan(missing_value):
mapmask[np.isnan(mask)] = True
elif np.isinf(missing_value):
mapmask[np.isinf(mask)] = True
else:
mapmask[mask == missing_value] = True
# Store instrument information
self.instrument = Instrument('Unknown', (ndetectors, ), comm=comm)
# Store observation information
class MadMap1ObservationInfo(object):
pass
self.info = MadMap1ObservationInfo()
self.info.todfile = todfile
self.info.invnttfile = invnttfile
self.info.ncorrelations = ncorrelations
self.info.npixels_per_sample = npixels_per_sample
self.info.mapmaskfile = mapmaskfile
self.info.convert = convert
self.info.missing_value = missing_value
self.info.mapmask = mapmask
# Store slice information
self.slice = np.recarray(nslices,
dtype=[('start', int), ('stop', int),
('nsamples_all', int),
('invnttfile', 'S256')])
self.slice.nsamples_all = nsamples
self.slice.start[0] = 0
self.slice.start[1:] = np.cumsum(nsamples)[:-1]
self.slice.stop = np.cumsum(nsamples)
self.slice.nfinesamples = nsamples
self.slice.invnttfile = [
invnttfile + '.' + str(i) for i in range(nslices)
]
# Store pointing information
self.pointing = np.recarray(np.sum(nsamples), [('removed', np.bool_)])
self.pointing.removed = False
# Check communicator information
if self.instrument.comm.size > 1:
raise NotImplementedError('The parallelisation of the TOD is not ' \
'implemented')
def test_pack_unpack():
layout = PackedTable(4, selection=[True, False, True, True])
instrument = Instrument('instrument', layout)
v = [1, 2, 3, 4]
assert_same(instrument.pack(v), [1, 3, 4])
assert_same(instrument.unpack([1, 3, 4]), [1, -1, 3, 4])
def __init__(
self,
calibration=None,
detector_fknee=0,
detector_fslope=1,
detector_ncorr=10,
detector_nep=4.7e-17,
detector_ngrids=1,
detector_tau=0.01,
filter_nu=150e9,
filter_relative_bandwidth=0.25,
polarizer=True,
primary_beam=None,
secondary_beam=None,
synthbeam_dtype=np.float32,
synthbeam_fraction=0.99,
synthbeam_kmax=8,
synthbeam_peak150_fwhm=np.radians(0.39268176),
):
"""
Parameters
----------
calibration : QubicCalibration
The calibration tree.
detector_fknee : array-like, optional
The detector 1/f knee frequency in Hertz.
detector_fslope : array-like, optional
The detector 1/f slope index.
detector_ncorr : int, optional
The detector 1/f correlation length.
detector_ngrids : int, optional
Number of detector grids.
detector_nep : array-like, optional
The detector NEP [W/sqrt(Hz)].
detector_tau : array-like, optional
The detector time constants in seconds.
filter_nu : float, optional
The filter central wavelength, in Hz.
filter_relative_bandwidth : float, optional
The filter relative bandwidth Δν/ν.
polarizer : boolean, optional
If true, the polarizer grid is present in the optics setup.
primary_beam : function f(theta [rad], phi [rad]), optional
The primary beam transmission function.
secondary_beam : function f(theta [rad], phi [rad]), optional
The secondary beam transmission function.
synthbeam_dtype : dtype, optional
The data type for the synthetic beams (default: float32).
It is the dtype used to store the values of the pointing matrix.
synthbeam_kmax : integer, optional
The diffraction order above which the peaks are ignored.
For instance, a value of kmax=2 will model the synthetic beam by
(2 * kmax + 1)**2 = 25 peaks and a value of kmax=0 will only sample
the central peak.
synthbeam_fraction: float, optional
The fraction of significant peaks retained for the computation
of the synthetic beam.
"""
if calibration is None:
calibration = QubicCalibration()
self.calibration = calibration
layout = self._get_detector_layout(
detector_ngrids, detector_nep, detector_fknee, detector_fslope, detector_ncorr, detector_tau
)
Instrument.__init__(self, layout)
self._init_beams(primary_beam, secondary_beam)
self._init_filter(filter_nu, filter_relative_bandwidth)
self._init_horns()
self._init_optics(polarizer)
self._init_synthbeam(synthbeam_dtype, synthbeam_peak150_fwhm)
self.synthbeam.fraction = synthbeam_fraction
self.synthbeam.kmax = synthbeam_kmax
