def test_vmf(self):
ori = vmf(pos=self.boehm_pos_rad,
time=self.boehm_time,
coeffs=self.cfs,
elev=deg2rad(5))
assert_allclose(ori,
self.boehm_coeffs,
rtol=1e-5,
err_msg="Wrong tropodelays")
def test_vmf(self):
ori = vmf(pos=self.boehm_pos_rad, time=self.boehm_time, coeffs=self.cfs, elev=deg2rad(5))
assert_allclose(ori, self.boehm_coeffs, rtol=1e-5, err_msg="Wrong tropodelays")
def tropmodel(pos, el, time="", coeffs=(), humi=0.75, temp0=15.0):
if len(coeffs) > 1:
return vmf(pos, time, el, coeffs)
else:
return saast(pos, el, humi, temp0)
return 2.99792458e8 * f * 5e-9
def time2gpst(t):
"""
convert GTime to time of week in gps time
:param t: GTime instance
:return: time of week in gps time (s)
"""
t0 = GTime(1980, 1, 6, 0, 0, 0) # GPS time reference
sec = t - t0 # number of seconds since t0, type: float
gps_week = int(sec / (86400 * 7))
return (sec - gps_week * 86400 * 7) + (t.sec - int(t.sec))
if __name__ == "__main__":
pos = [pi / 3, pi / 6, 100.0]
azel = 45 * pi / 180
t = datetime(2016, 1, 1, 0, 0)
from proto.helper.vmf import vmf
vmf_coeffs = (0.00121328, 0.00043331)
for h in range(10):
saa_ = tropmodel(pos, azel, 0.1 * h)
print "Relative humidity: %2d %% \t delay: %.3f meters" % (h * 10, saa_)
for h in range(90, 0, -10):
saa_ = tropmodel(pos, radians(h), 50)
vmf_ = sum(vmf(pos, t, radians(h), vmf_coeffs))
print "Elevation angle: %2d° \t Delays [m]: Saastamoinen: %.3f, VMF1: %.3f" % (h, saa_, vmf_)
def tropmodel(pos, el, time='', coeffs=(), humi=0.75, temp0=15.0):
if len(coeffs) > 1:
return vmf(pos, time, el, coeffs)
else:
return saast(pos, el, humi, temp0)
return 2.99792458E8 * f * 5E-9
def time2gpst(t):
"""
convert GTime to time of week in gps time
:param t: GTime instance
:return: time of week in gps time (s)
"""
t0 = GTime(1980, 1, 6, 0, 0, 0) # GPS time reference
sec = t - t0 # number of seconds since t0, type: float
gps_week = int(sec / (86400 * 7))
return (sec - gps_week * 86400 * 7) + (t.sec - int(t.sec))
if __name__ == "__main__":
pos = [pi / 3, pi / 6, 100.]
azel = 45 * pi / 180
t = datetime(2016, 1, 1, 0, 0)
from proto.helper.vmf import vmf
vmf_coeffs = (0.00121328, 0.00043331)
for h in range(10):
saa_ = tropmodel(pos, azel, 0.1 * h)
print "Relative humidity: %2d %% \t delay: %.3f meters" % (h * 10, saa_)
for h in range(90, 0, -10):
saa_ = tropmodel(pos, radians(h), 50)
vmf_ = sum(vmf(pos, t, radians(h), vmf_coeffs))
print "Elevation angle: %2d° \t Delays [m]: Saastamoinen: %.3f, VMF1: %.3f" % (h, saa_, vmf_)
