def test_ohdev_ci(self):
s32rows = testutils.read_stable32(resultfile='ohdev_decade.txt',
datarate=1.0)
for row in s32rows:
data = testutils.read_datafile(data_file)
(taus, devs, errs, ns) = allan.ohdev(data,
rate=rate,
taus=[row['tau']])
edf = allan.edf_greenhall(alpha=row['alpha'],
d=3,
m=row['m'],
N=len(data),
overlapping=True,
modified=False,
verbose=True)
(lo, hi) = allan.confidence_intervals(devs[0],
ci=0.68268949213708585,
edf=edf)
print("n check: ", testutils.check_equal(ns[0], row['n']))
print("dev check: ",
testutils.check_approx_equal(devs[0], row['dev']))
print(
"min dev check: ", lo, row['dev_min'],
testutils.check_approx_equal(lo,
row['dev_min'],
tolerance=1e-3))
print(
"max dev check: ", hi, row['dev_max'],
testutils.check_approx_equal(hi,
row['dev_max'],
tolerance=1e-3))
def test_ohdev_ci(self):
s32rows = testutils.read_stable32(resultfile='ohdev_octave.txt',
datarate=1.0)
for row in s32rows:
data = testutils.read_datafile(data_file)
data = allan.frequency2fractional(data, mean_frequency=1.0e7)
(taus, devs, errs, ns) = allan.ohdev(data,
rate=rate,
data_type="freq",
taus=[row['tau']])
# NOTE! Here we use alhpa from Stable32-results for the allantools edf computation!
edf = allan.edf_greenhall(alpha=row['alpha'],
d=3,
m=row['m'],
N=len(data),
overlapping=True,
modified=False,
verbose=True)
(lo, hi) = allan.confidence_interval(devs[0], edf=edf)
print("n check: ", testutils.check_equal(ns[0], row['n']))
print(
"dev check: ", devs[0], row['dev'],
testutils.check_approx_equal(devs[0],
row['dev'],
tolerance=2e-3))
print(
"min dev check: ", lo, row['dev_min'],
testutils.check_approx_equal(lo,
row['dev_min'],
tolerance=2e-3))
print(
"max dev check: ", hi, row['dev_max'],
testutils.check_approx_equal(hi,
row['dev_max'],
tolerance=5e-3))
def test_phasedat_ohdev(self):
s32_rows = testutils.read_stable32( 'phase_dat_ohdev_octave.txt' , 1.0 )
phase = testutils.read_datafile('PHASE.DAT')
(taus,devs,errs,ns) = allan.ohdev(phase, taus=[s32['tau'] for s32 in s32_rows])
# CI computation
# alhpa= +2,...,-4 noise power
# d= 1 first-difference variance, 2 allan variance, 3 hadamard variance
# alpha+2*d >1
# m = tau/tau0 averaging factor
# F filter factor, 1 modified variance, m unmodified variance
# S stride factor, 1 nonoverlapped estimator, m overlapped estimator (estimator stride = tau/S )
# N number of phase obs
los=[]
his=[]
for (d,t, n) in zip(devs, taus, ns):
#edf = greenhall_simple_edf( alpha=0, d=3, m=t, S=1, F=t, N=len(phase) )
edf2 = allan.edf_greenhall( alpha=0, d=3, m=int(t), N=len(phase), overlapping = True, modified=False )
#print(edf,edf2,edf2/edf)
(lo,hi) = allan.confidence_interval( dev=d, edf=edf2 )
#allan.uncertainty_estimate(len(phase), t, d,ci=0.683,noisetype='wf')
los.append(lo)
his.append(hi)
print("ohdev()")
for (s32, t2, d2, lo2, hi2, n2) in zip(s32_rows, taus, devs, los, his, ns):
print("s32 %03d %03f %1.6f %1.6f %1.6f" % (s32['n'], s32['tau'], s32['dev_min'], s32['dev'], s32['dev_max']))
print("at %03d %03f %1.6f %1.6f %1.6f" % (n2, t2, round(lo2,5), round(d2,5), round(hi2,5) ))
testutils.check_approx_equal(s32['dev_min'], lo2, tolerance=1e-3)
testutils.check_approx_equal(s32['dev_max'], hi2, tolerance=1e-3)
print("----")
def test_ohdev_ci_and_noiseID(self):
""" ADEV with confidence intervals, including noise-ID """
change_to_test_dir()
s32rows = testutils.read_stable32(
resultfile='stable32_OHDEV_octave.txt', datarate=1.0)
for row in s32rows:
phase = testutils.read_datafile('gps_1pps_phase_data.txt.gz')
(taus, devs, errs, ns) = allan.ohdev(phase,
rate=rate,
data_type="phase",
taus=[row['tau']])
dev = devs[0]
#print(dev/row['dev'])
assert np.isclose(dev, row['dev'], rtol=1e-2, atol=0)
try:
# CI including noise-ID
(lo2,
hi2) = allan.confidence_interval_noiseID(phase,
dev,
af=int(row['m']),
dev_type="ohdev",
data_type="phase")
print(" tau= %f lo/s32_lo = %f hi/s32_hi = %f " %
(row['tau'], lo2 / row['dev_min'], hi2 / row['dev_max']))
assert np.isclose(lo2, row['dev_min'], rtol=1e-2, atol=0)
assert np.isclose(hi2, row['dev_max'], rtol=1e-2, atol=0)
except NotImplementedError:
print("can't do CI for tau= %f" % row['tau'])
pass
def test_ohdev_ci(self):
s32rows = testutils.read_stable32(resultfile='ohdev_decade.txt', datarate=1.0)
for row in s32rows:
data = testutils.read_datafile(data_file)
(taus, devs, errs, ns) = allan.ohdev(data, rate=rate,
taus=[ row['tau'] ])
edf = allan.edf_greenhall(alpha=row['alpha'],d=3,m=row['m'],N=len(data),overlapping=True, modified = False, verbose=True)
(lo,hi) =allan.confidence_intervals(devs[0],ci=0.68268949213708585, edf=edf)
print("n check: ", testutils.check_equal( ns[0], row['n'] ) )
print("dev check: ", testutils.check_approx_equal( devs[0], row['dev'] ) )
print("min dev check: ", lo, row['dev_min'], testutils.check_approx_equal( lo, row['dev_min'], tolerance=1e-3 ) )
print("max dev check: ", hi, row['dev_max'], testutils.check_approx_equal( hi, row['dev_max'], tolerance=1e-3 ) )
def test_ohdev_ci(self):
""" Overlapping Hadamard deviation with confidence intervals """
s32rows = testutils.read_stable32(resultfile='ohdev_octave.txt', datarate=1.0)
for row in s32rows:
data = testutils.read_datafile(data_file)
data = allan.frequency2fractional(data, mean_frequency=1.0e7)
(taus, devs, errs, ns) = allan.ohdev(data, rate=rate, data_type="freq",
taus=[ row['tau'] ])
# NOTE! Here we use alhpa from Stable32-results for the allantools edf computation!
edf = allan.edf_greenhall(alpha=row['alpha'],d=3,m=row['m'],N=len(data),overlapping=True, modified = False, verbose=True)
(lo,hi) =allan.confidence_interval(devs[0], edf=edf)
print("n check: ", testutils.check_equal( ns[0], row['n'] ) )
print("dev check: ", devs[0], row['dev'], testutils.check_approx_equal( devs[0], row['dev'], tolerance=2e-3 ) )
print("min dev check: ", lo, row['dev_min'], testutils.check_approx_equal( lo, row['dev_min'], tolerance=2e-3 ) )
print("max dev check: ", hi, row['dev_max'], testutils.check_approx_equal( hi, row['dev_max'], tolerance=5e-3 ) )
def test_ohdev_ci(self):
s32rows = testutils.read_stable32(resultfile="ohdev_octave.txt", datarate=1.0)
for row in s32rows:
data = testutils.read_datafile(data_file)
data = allan.frequency2fractional(data, mean_frequency=1.0e7)
(taus, devs, errs, ns) = allan.ohdev(data, rate=rate, data_type="freq", taus=[row["tau"]])
edf = allan.edf_greenhall(
alpha=row["alpha"], d=3, m=row["m"], N=len(data), overlapping=True, modified=False, verbose=True
)
(lo, hi) = allan.confidence_intervals(devs[0], ci=0.68268949213708585, edf=edf)
print("n check: ", testutils.check_equal(ns[0], row["n"]))
print("dev check: ", devs[0], row["dev"], testutils.check_approx_equal(devs[0], row["dev"], tolerance=2e-3))
print(
"min dev check: ", lo, row["dev_min"], testutils.check_approx_equal(lo, row["dev_min"], tolerance=2e-3)
)
print(
"max dev check: ", hi, row["dev_max"], testutils.check_approx_equal(hi, row["dev_max"], tolerance=5e-3)
)
def test_phasedat_ohdev(self):
s32_rows = testutils.read_stable32('phase_dat_ohdev_octave.txt', 1.0)
phase = testutils.read_datafile('PHASE.DAT')
(taus, devs, errs,
ns) = allan.ohdev(phase, taus=[s32['tau'] for s32 in s32_rows])
# CI computation
# alhpa= +2,...,-4 noise power
# d= 1 first-difference variance, 2 allan variance, 3 hadamard variance
# alpha+2*d >1
# m = tau/tau0 averaging factor
# F filter factor, 1 modified variance, m unmodified variance
# S stride factor, 1 nonoverlapped estimator, m overlapped estimator (estimator stride = tau/S )
# N number of phase obs
los = []
his = []
for (d, t, n) in zip(devs, taus, ns):
#edf = greenhall_simple_edf( alpha=0, d=3, m=t, S=1, F=t, N=len(phase) )
edf2 = allan.edf_greenhall(alpha=0,
d=3,
m=int(t),
N=len(phase),
overlapping=True,
modified=False)
#print(edf,edf2,edf2/edf)
(lo,
hi) = allan.confidence_intervals(dev=d,
ci=0.68268949213708585,
edf=edf2) # 0.68268949213708585
#allan.uncertainty_estimate(len(phase), t, d,ci=0.683,noisetype='wf')
los.append(lo)
his.append(hi)
for (s32, t2, d2, lo2, hi2, n2) in zip(s32_rows, taus, devs, los, his,
ns):
print("s32 %03d %03f %1.6f %1.6f %1.6f" %
(s32['n'], s32['tau'], s32['dev_min'], s32['dev'],
s32['dev_max']))
print("at %03d %03f %1.6f %1.6f %1.6f" %
(n2, t2, round(lo2, 5), round(d2, 5), round(hi2, 5)))
testutils.check_approx_equal(s32['dev_min'], lo2, tolerance=1e-3)
testutils.check_approx_equal(s32['dev_max'], hi2, tolerance=1e-3)
print("----")
def test_ohdev_ci_and_noiseID(self):
""" ADEV with confidence intervals, including noise-ID """
change_to_test_dir()
s32rows = testutils.read_stable32(resultfile='stable32_OHDEV_octave.txt', datarate=1.0)
for row in s32rows:
phase = testutils.read_datafile('gps_1pps_phase_data.txt.gz')
(taus, devs, errs, ns) = allan.ohdev(phase, rate=rate, data_type="phase",
taus=[row['tau']])
dev = devs[0]
#print(dev/row['dev'])
assert np.isclose(dev, row['dev'], rtol=1e-2, atol=0)
try:
# CI including noise-ID
(lo2, hi2) = allan.confidence_interval_noiseID(phase, dev, af=int(row['m']), dev_type="ohdev", data_type="phase")
print(" tau= %f lo/s32_lo = %f hi/s32_hi = %f "% (row['tau'], lo2/row['dev_min'], hi2/row['dev_max']))
assert np.isclose(lo2, row['dev_min'], rtol=1e-2, atol=0)
assert np.isclose(hi2, row['dev_max'], rtol=1e-2, atol=0)
except NotImplementedError:
print("can't do CI for tau= %f"%row['tau'])
pass
def nbs14_test():
taus = [1, 2]
devs = []
tol = 1e-4
# first tests that call the _phase functions
print "nbs14 tests for phase data:"
(taus2,adevs2,aerrs2,ns2) = allan.adev_phase( nbs14_phase, 1.0, taus)
adevs = nbs14_devs[0]
assert( check_devs( adevs2[0], adevs[0] ) )
assert( check_devs( adevs2[1], adevs[1] ) )
print "nbs14 adev OK"
(taus2,adevs2,aerrs2,ns2) = allan.oadev_phase( nbs14_phase, 1.0, taus)
oadevs = nbs14_devs[1]
assert( check_devs( adevs2[0], oadevs[0] ) )
assert( check_devs( adevs2[1], oadevs[1] ) )
print "nbs14 oadev OK"
(taus2,adevs2,aerrs2,ns2) = allan.mdev_phase( nbs14_phase, 1.0, taus)
mdevs = nbs14_devs[2]
assert( check_devs( adevs2[0], mdevs[0] ) )
assert( check_devs( adevs2[1], mdevs[1] ) )
print "nbs14 mdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.totdev_phase( nbs14_phase, 1.0, taus)
totdevs = nbs14_devs[3]
assert( check_devs( adevs2[0], totdevs[0] ) )
assert( check_devs( adevs2[1], totdevs[1] ) )
print "nbs14 totdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.hdev_phase( nbs14_phase, 1.0, taus)
hdevs = nbs14_devs[4]
assert( check_devs( adevs2[0], hdevs[0] ) )
assert( check_devs( adevs2[1], hdevs[1] ) )
print "nbs14 hdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.tdev_phase( nbs14_phase, 1.0, taus)
tdevs = nbs14_devs[5]
assert( check_devs( adevs2[0], tdevs[0] ) )
assert( check_devs( adevs2[1], tdevs[1] ) )
print "nbs14 tdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.ohdev_phase( nbs14_phase, 1.0, taus)
ohdevs = nbs14_devs[6]
assert( check_devs( adevs2[0], ohdevs[0] ) )
assert( check_devs( adevs2[1], ohdevs[1] ) )
print "nbs14 ohdev OK"
# then the same tests for frequency data
print "nbs14 tests for frequency data:"
f_fract = [ float(f) for f in nbs14_f]
(taus2,adevs2,aerrs2,ns2) = allan.adev( f_fract, 1.0, taus)
adevs = nbs14_devs[0]
assert( check_devs( adevs2[0], adevs[0] ) )
assert( check_devs( adevs2[1], adevs[1] ) )
print "nbs14 freqdata adev OK"
(taus2,adevs2,aerrs2,ns2) = allan.oadev( f_fract, 1.0, taus)
oadevs = nbs14_devs[1]
assert( check_devs( adevs2[0], oadevs[0] ) )
assert( check_devs( adevs2[1], oadevs[1] ) )
print "nbs14 freqdata oadev OK"
(taus2,adevs2,aerrs2,ns2) = allan.mdev( f_fract, 1.0, taus)
mdevs = nbs14_devs[2]
assert( check_devs( adevs2[0], mdevs[0] ) )
assert( check_devs( adevs2[1], mdevs[1] ) )
print "nbs14 freqdata mdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.totdev( f_fract, 1.0, taus)
totdevs = nbs14_devs[3]
assert( check_devs( adevs2[0], totdevs[0] ) )
assert( check_devs( adevs2[1], totdevs[1] ) )
print "nbs14 freqdata totdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.hdev( f_fract, 1.0, taus)
hdevs = nbs14_devs[4]
assert( check_devs( adevs2[0], hdevs[0] ) )
assert( check_devs( adevs2[1], hdevs[1] ) )
print "nbs14 freqdata hdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.tdev( f_fract, 1.0, taus)
tdevs = nbs14_devs[5]
assert( check_devs( adevs2[0], tdevs[0] ) )
assert( check_devs( adevs2[1], tdevs[1] ) )
print "nbs14 freqdata tdev OK"
(taus2,adevs2,aerrs2,ns2) = allan.ohdev( f_fract, 1.0, taus)
ohdevs = nbs14_devs[6]
assert( check_devs( adevs2[0], ohdevs[0] ) )
assert( check_devs( adevs2[1], ohdevs[1] ) )
print "nbs14 freqdata ohdev OK"
print "nbs14 all test OK"
60) # log-spaced tau values from 10s and upwards
rate = 1 / float(1.0)
(adev_taus, adev_devs, adev_errs, ns) = allan.adev(phase=phase,
rate=rate,
taus=my_taus)
(oadev_taus, oadev_devs, oadev_errs, ns) = allan.oadev(phase=phase,
rate=rate,
taus=my_taus)
(hdev_taus, hdev_devs, hdev_errs, ns) = allan.hdev(phase=phase,
rate=rate,
taus=my_taus)
(ohdev_taus, ohdev_devs, ohdev_errs, ns) = allan.ohdev(phase=phase,
rate=rate,
taus=my_taus)
(mdev_taus, mdev_devs, mdev_errs, ns) = allan.mdev(phase=phase,
rate=rate,
taus=my_taus)
(totdev_taus, totdev_devs, totdev_errs, ns) = allan.totdev(phase=phase,
rate=rate,
taus=my_taus)
(tie_taus, tie_devs, tie_errs, ns) = allan.tierms(phase=phase,
rate=rate,
taus=my_taus)
#(mtie_taus,mtie_devs,mtie_errs,ns) = allan.mtie(phase=phase, rate=rate, taus=my_taus)
return out fname = "gps_1pps_phase_data.txt.gz" phase = read_datafile(fname,column=0) print len(phase), " values read: ", len(phase)/3600.0 , " hours" #f = to_fractional(f10MHz, 10e6 ) # convert to fractional frequency my_taus = numpy.logspace(1,6,60) # log-spaced tau values from 10s and upwards rate = 1/float(1.0) (adev_taus,adev_devs,adev_errs,ns) = allan.adev(phase=phase, rate=rate, taus=my_taus) (oadev_taus,oadev_devs,oadev_errs,ns) = allan.oadev(phase=phase, rate=rate, taus=my_taus) (hdev_taus,hdev_devs,hdev_errs,ns) = allan.hdev(phase=phase, rate=rate, taus=my_taus) (ohdev_taus,ohdev_devs,ohdev_errs,ns) = allan.ohdev(phase=phase, rate=rate, taus=my_taus) (mdev_taus,mdev_devs,mdev_errs,ns) = allan.mdev(phase=phase, rate=rate, taus=my_taus) (totdev_taus,totdev_devs,totdev_errs,ns) = allan.totdev(phase=phase, rate=rate, taus=my_taus) (tie_taus,tie_devs,tie_errs,ns) = allan.tierms(phase=phase, rate=rate, taus=my_taus) #(mtie_taus,mtie_devs,mtie_errs,ns) = allan.mtie(phase=phase, rate=rate, taus=my_taus) (tdev_taus,tdev_devs,tdev_errs,ns) = allan.tdev(phase=phase, rate=rate, taus=my_taus) (tdev2_taus,tdev2_devs,tdev2_errs,ns2) = allan.tdev(frequency=allan.phase2frequency(phase,1.0), rate=rate, taus=my_taus) plt.subplot(111, xscale="log", yscale="log") plt.errorbar(adev_taus, adev_devs, yerr=adev_errs, label='ADEV')
fname = "ocxo_frequency.txt"
f10MHz = read_datafile(fname, column=0)
f = to_fractional(f10MHz, 10e6) # convert to fractional frequency
# log-spaced tau values from 10s and upwards
my_taus = numpy.logspace(1, 5, 40)
rate = 1/float(10) # data collected with 10s gate time
(oadev_taus, oadev_devs, oadev_errs, ns) = allan.oadev(
f, data_type='freq', rate=rate, taus=my_taus)
(mdev_taus, mdev_devs, mdev_errs, ns) = allan.mdev(
f, data_type='freq', rate=rate, taus=my_taus)
(hdev_taus, hdev_devs, hdev_errs, ns) = allan.hdev(
f, data_type='freq', rate=rate, taus=my_taus)
(ohdev_taus, ohdev_devs, ohdev_errs, ns) = allan.ohdev(
f, data_type='freq', rate=rate, taus=my_taus)
plt.subplot(111, xscale="log", yscale="log")
plt.errorbar(oadev_taus, oadev_devs, yerr=oadev_errs, label='OADEV')
plt.errorbar(mdev_taus, mdev_devs, yerr=mdev_errs, label='MDEV')
plt.errorbar(hdev_taus, hdev_devs, yerr=hdev_errs, label='HDEV')
plt.errorbar(ohdev_taus, ohdev_devs, yerr=ohdev_errs, label='OHDEV')
plt.xlabel('Taus (s)')
plt.ylabel('ADEV')
plt.legend()
plt.grid()
plt.show()
f = to_fractional(f10MHz, 10e6) # convert to fractional frequency
my_taus = numpy.logspace(1, 5,
40) # log-spaced tau values from 10s and upwards
rate = 1 / float(10) # data collected with 10s gate time
(oadev_taus, oadev_devs, oadev_errs, ns) = allan.oadev(frequency=f,
rate=rate,
taus=my_taus)
(mdev_taus, mdev_devs, mdev_errs, ns) = allan.mdev(frequency=f,
rate=rate,
taus=my_taus)
(hdev_taus, hdev_devs, hdev_errs, ns) = allan.hdev(frequency=f,
rate=rate,
taus=my_taus)
(ohdev_taus, ohdev_devs, ohdev_errs, ns) = allan.ohdev(frequency=f,
rate=rate,
taus=my_taus)
plt.subplot(111, xscale="log", yscale="log")
plt.errorbar(oadev_taus, oadev_devs, yerr=oadev_errs, label='OADEV')
plt.errorbar(mdev_taus, mdev_devs, yerr=mdev_errs, label='MDEV')
plt.errorbar(hdev_taus, hdev_devs, yerr=hdev_errs, label='HDEV')
plt.errorbar(ohdev_taus, ohdev_devs, yerr=ohdev_errs, label='OHDEV')
plt.xlabel('Taus (s)')
plt.ylabel('ADEV')
plt.legend()
plt.grid()
plt.show()
out=[]
for f in flist:
out.append( f/float(f0) - 1.0 )
return out
fname = "ocxo_frequency.txt"
f10MHz = read_datafile(fname,column=0)
f = to_fractional(f10MHz, 10e6 ) # convert to fractional frequency
my_taus = numpy.logspace(1,5,40) # log-spaced tau values from 10s and upwards
rate = 1/float(10) # data collected with 10s gate time
(oadev_taus,oadev_devs,oadev_errs,ns) = allan.oadev(frequency=f, rate=rate, taus=my_taus)
(mdev_taus,mdev_devs,mdev_errs,ns) = allan.mdev(frequency=f, rate=rate, taus=my_taus)
(hdev_taus,hdev_devs,hdev_errs,ns) = allan.hdev(frequency=f, rate=rate, taus=my_taus)
(ohdev_taus,ohdev_devs,ohdev_errs,ns) = allan.ohdev(frequency=f, rate=rate, taus=my_taus)
plt.subplot(111, xscale="log", yscale="log")
plt.errorbar(oadev_taus, oadev_devs, yerr=oadev_errs, label='OADEV')
plt.errorbar(mdev_taus, mdev_devs, yerr=mdev_errs, label='MDEV')
plt.errorbar(hdev_taus, hdev_devs, yerr=hdev_errs, label='HDEV')
plt.errorbar(ohdev_taus, ohdev_devs, yerr=ohdev_errs, label='OHDEV')
plt.xlabel('Taus (s)')
plt.ylabel('ADEV')
plt.legend()
plt.grid()
plt.show()