def run(station, dt, rapid=True, prefixdir=""):
"""
PPP-processing with NRCan ppp.
requires "gpsppp" binary
"""
print "------------------------------------"
print "PPP-processing with NRCan ppp."
original_dir = prefixdir
dt_start = datetime.datetime.utcnow(
) # for timing how long processing takes
year = dt.timetuple().tm_year
doy = dt.timetuple().tm_yday
rinex = station.get_rinex(dt) # this downloads RINEX over ftp, if needed
# get GPS Products
# nrcan ppp wants IGS products for two days.
# if we process day N, we need products for N and N+1
clk_files = []
eph_files = []
erp_file = "" # we do not use the ERP files, for now.
if not rapid: # Final products
(clk1, eph1, erp1) = igs_ftp.get_CODE_final(dt, prefixdir)
(clk2, eph2,
erp2) = igs_ftp.get_CODE_final(dt + datetime.timedelta(days=1),
prefixdir)
clk_files = [clk1, clk2]
eph_files = [eph1, eph2]
erp_file = erp1
elif rapid: # Rapid products
(clk1, eph1, erp1) = igs_ftp.get_CODE_rapid(dt, prefixdir)
(clk2, eph2,
erp2) = igs_ftp.get_CODE_rapid(dt + datetime.timedelta(days=1),
prefixdir)
clk_files = [clk1, clk2]
eph_files = [eph1, eph2]
erp_file = erp1
# we do processing in a temp directory
tempdir = prefixdir + "/temp/"
ftp_tools.check_dir(tempdir)
ftp_tools.delete_files(tempdir) # empty the temp directory
# us an existing cmd-file (doesn't change from run to run)
cmdfile = prefixdir + "/gpsppp/1day.cmd"
# write an INP file, corresponding to the keyboard-input required
inp_file = nrcan_inp_file(tempdir + "run.inp", rinex, cmdfile, eph_files,
clk_files, rapid)
# write a DEF file
nrcan_def_file(prefixdir, "gpsppp.def")
# result will be stored in a POS file:
(rinexdir, fn) = os.path.split(rinex)
if fn[-3:] == ".gz":
nrcan_pos_file = tempdir + fn[:-6] + "pos"
else:
nrcan_pos_file = tempdir + fn[:-5] + "pos"
run_log = ""
run_log += " run start: %d-%02d-%02d %02d:%02d:%02d\n" % (
dt_start.year, dt_start.month, dt_start.day, dt_start.hour,
dt_start.minute, dt_start.second)
run_log += " Program: %s\n" % gpsppp_version
run_log += " Station: %s\n" % station.name
run_log += " Year: %d\n" % year
run_log += " DOY: %03d\n" % doy
run_log += " date: %d-%02d-%02d\n" % (dt.year, dt.month, dt.day)
run_log += " RINEX: %s\n" % rinex
run_log += " CLK: %s\n" % clk_files # allow for multiple clk-files!?
run_log += " EPH: %s\n" % eph_files
run_log += " ERP: %s\n" % erp_file
print run_log
# move RINEX, CLK, EPH, ERP files to temp_dir
files_to_move = [rinex, clk1, clk2, eph1, eph2, erp_file]
moved_files = []
for f in files_to_move:
shutil.copy2(f, tempdir)
(tmp, fn) = os.path.split(f)
moved_files.append(tempdir + fn)
print moved_files
# unzip zipped files. this may include the RINEX, CLK, EPH files.
for f in moved_files:
if f[-1] == "Z" or f[-1] == "z": # compressed .z or .Z file
cmd = '/bin/gunzip'
cmd = cmd + " -f " + f # -f overwrites existing file
print "unzipping: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# rename the ERP file - becase the name is fixed to gpsppp.ERP in the DEF file.
cmd = '/bin/mv'
gpsppp_erp = prefixdir + "/temp/gpsppp.ERP"
(tmp, fn) = os.path.split(erp_file) # [:-2]
cmd = cmd + " " + tempdir + fn + " " + gpsppp_erp
print "rename command: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# figure out the rinex file name
print "rinex= ", rinex
(tmp, rinexfile) = os.path.split(rinex)
inputfile = rinexfile[:-2] # strip off ".Z"
if inputfile[-1] == ".": # ends in a dot
inputfile = inputfile[:-1] # strip off
# if the RINEX file is hatanaka-compressed, uncompress it
if inputfile[-1] == "d" or inputfile[-1] == "D":
hata_file = moved_files[0]
hata_file = hata_file[:-2] # strip off ".Z"
if hata_file[-1] == ".":
hata_file = hata_file[:-1] # stip off more
cmd = "CRX2RNX " + hata_file
print "Hatanaka uncompress: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# now gpsppp itself:
os.chdir(tempdir)
cmd = gpsppp_binary + " < " + inp_file
p = subprocess.Popen(cmd, shell=True, cwd=tempdir)
p.communicate() # wait for processing to finish
dt_end = datetime.datetime.utcnow()
delta = dt_end - dt_start
run_log2 = " run end: %d-%02d-%02d %02d:%02d:%02d\n" % (
dt_end.year, dt_end.month, dt_end.day, dt_end.hour, dt_end.minute,
dt_end.second)
run_log2 += " elapsed: %.2f s\n" % (delta.seconds +
delta.microseconds / 1.0e6)
print run_log2
print "---------------------------------"
# we may now do postprocessing and store the results.
# the result is named RINEX.pos, for example "usn63440.pos"
ppp_result = nrcan_parse_result(nrcan_pos_file,
station,
inputfile,
bwd=True)
result_file = ppp_common.write_result_file(ppp_result=ppp_result,
preamble=run_log + run_log2,
rapid=rapid,
tag=gpsppp_tag,
prefixdir=prefixdir)
os.chdir(original_dir) # change back to original directory
return result_file
def run(station, dt, rapid=True, prefixdir=""):
"""
PPP run using RTKLib rnx2rtkp
"""
original_dir = prefixdir
dt_start = datetime.datetime.utcnow()
doy = dt.timetuple().tm_yday
rinex = station.get_rinex(dt) # doenload rinex file
# GET NAV file
navfile = igs_ftp.cddis_brdc_file(dt, prefixdir)
# download IGS products
(clk, eph, erp) = igs_ftp.get_CODE_rapid(dt, prefixdir)
# log input files, for writing to the result file
run_log = " run start: %d-%02d-%02d %02d:%02d:%02d\n" % (
dt_start.year, dt_start.month, dt_start.day, dt_start.hour,
dt_start.minute, dt_start.second)
run_log += " Station: %s\n" % station.name
run_log += " Year: %d\n" % dt.year
run_log += " DOY: %03d\n" % doy
run_log += " date: %d-%02d-%02d\n" % (dt.year, dt.month, dt.day)
run_log += " RINEX: %s\n" % rinex
run_log += " CLK: %s\n" % clk
run_log += " EPH: %s\n" % eph
run_log += " ERP: %s\n" % erp
print run_log
# we do processing in a temp directory
tempdir = prefixdir + "/temp/"
ftp_tools.check_dir(tempdir)
ftp_tools.delete_files(tempdir) # empty the temp directory
# copy files to tempdir
files_to_copy = [rinex, clk, eph, eph, erp, navfile]
copied_files = []
for f in files_to_copy:
shutil.copy2(f, tempdir)
(tmp, fn) = os.path.split(f)
copied_files.append(tempdir + fn)
# unzip zipped files, if needed
for f in copied_files:
if f[-1] == "Z" or f[-1] == "z": # compressed .z or .Z file
cmd = '/bin/gunzip'
cmd = cmd + " -f " + f # -f overwrites existing file
print "unzipping: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# Hatanaka uncompress - if needed
#rinexfile = copied_files[0] # the first file is the unzipped RINEX, in the temp dir
if rinex[-3] == "d" or rinex[-3] == "D":
hata_file = copied_files[0]
hata_file = hata_file[:-2] # strip off ".Z"
#print "hata ", hata_file
cmd = "CRX2RNX " + hata_file
print "Hatanaka uncompress: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# figure out the rinex file name
(tmp, rinexfile) = os.path.split(rinex)
inputfile = rinexfile[:-2] # strip off ".Z"
if inputfile[-1] == "d" or rinex[-3] == "D":
# if hatanaka compressed, we already uncompressed, so change to "O"
inputfile = inputfile[:-1] + "O"
# now ppp itself:
os.chdir(tempdir)
antfile = prefixdir + "/common/igs08.atx"
outfile = tempdir + "out.txt"
clk = copied_files[1]
# RKLib wants eph files to be named sp3
# from CODE they end .CLK_R
clk_new = clk[:-6] + ".clk"
cmd = "cp " + clk + " " + clk_new
#print cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
clk = clk_new
print clk
# RKLib wants eph files to be named sp3
# from CODE they end .CLK_R
eph = copied_files[2]
eph_new = eph[:-6] + ".sp3"
cmd = "cp " + eph + " " + eph_new
#print cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
eph = eph_new
print eph
navfile = copied_files[5]
navfile = navfile[:-2] # strip off ".Z"
inputfile = tempdir + inputfile
print "input ", inputfile
print "nav ", navfile
print "clk ", clk
print "eph ", eph
cmd = rtklib_binary # must have this executable in path
conf_file = prefixdir + "/common/rtklib_opts1.conf"
options = [
" -k %s" % conf_file,
#" -p 7", # mode 7:ppp-static
#" -t", # lat/lon/height time output
#" -u", # UTC time Don't use it, we get epochs of min:11 and min:41 instead of min:00 and min:00
#" -d %d" % 12, # number of decimals in time output
" -o %s" % outfile,
#" -m 10", # elevation mask
#" -c", # combined forward/backward solutions
#" -y 1", # state output
#" -h", # fix and hold for integer ambiguity resolution [off]
#" -f 2", # 2:L1+L2
#" -x 2", # debug level
" %s" % eph,
" %s" % clk,
" %s" % inputfile, # RINEX file
" %s" % navfile, # brdc NAV file
#" %s" % (prefixdir + "/common/igs08.atx")
]
for opt in options:
cmd += opt
p = subprocess.Popen(cmd, shell=True, cwd=tempdir)
p.communicate() # wait for processing to finish
dt_end = datetime.datetime.utcnow()
delta = dt_end - dt_start
run_log2 = " run end: %d-%02d-%02d %02d:%02d:%02d\n" % (
dt_end.year, dt_end.month, dt_end.day, dt_end.hour, dt_end.minute,
dt_end.second)
run_log2 += " elapsed: %.2f s\n" % (delta.seconds +
delta.microseconds / 1.0e6)
print run_log2
# here we may parse the output and store it to file somewhere
ppp_result = parse_result(outfile, station)
result_file = ppp_common.write_result_file(ppp_result=ppp_result,
preamble=run_log + run_log2,
rapid=rapid,
tag=rtklib_tag,
prefixdir=prefixdir)
os.chdir(original_dir) # change back to original directory
def run(station, dt, rapid=True, prefixdir=""):
"""
PPP run using ESA gLAB
"""
print "ESA gLAB PPP-run"
original_dir = prefixdir
dt_start = datetime.datetime.utcnow()
doy = dt.timetuple().tm_yday
rinex = station.get_rinex(dt) # download rinex file
print "getting IGS products:"
# download IGS products
(clk, eph, erp) = igs_ftp.get_CODE_rapid(dt, prefixdir)
print "IGS products done."
print "-------------------"
# log input files, for writing to the result file
run_log = " run start: %d-%02d-%02d %02d:%02d:%02d\n" % (
dt_start.year, dt_start.month, dt_start.day, dt_start.hour,
dt_start.minute, dt_start.second)
run_log += " Station: %s\n" % station.name
run_log += " Year: %d\n" % dt.year
run_log += " DOY: %03d\n" % doy
run_log += " date: %d-%02d-%02d\n" % (dt.year, dt.month, dt.day)
run_log += " RINEX: %s\n" % rinex
run_log += " CLK: %s\n" % clk
run_log += " EPH: %s\n" % eph
run_log += " ERP: %s\n" % erp
print run_log
print "-------------------"
# we do processing in a temp directory
tempdir = prefixdir + "/temp/"
ftp_tools.check_dir(tempdir)
ftp_tools.delete_files(tempdir) # empty the temp directory
# copy files to tempdir
files_to_copy = [rinex, clk, eph, eph, erp]
copied_files = []
for f in files_to_copy:
shutil.copy2(f, tempdir)
(tmp, fn) = os.path.split(f)
copied_files.append(tempdir + fn)
# unzip zipped files, if needed
for f in copied_files:
if f[-1] == "Z" or f[-1] == "z": # compressed .z or .Z file
cmd = '/bin/gunzip'
cmd = cmd + " -f " + f # -f overwrites existing file
print "unzipping: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# Hatanaka uncompress - if needed
#rinexfile = copied_files[0] # the first file is the unzipped RINEX, in the temp dir
if rinex[-3] == "d" or rinex[-3] == "D" or rinex[
-4] == "D": # can end .z, .Z, or .gz - so the "d" is in position -3 or -4
hata_file = copied_files[0]
hata_file = hata_file[:-2] # strip off ".Z"
if rinex[-4] == "D":
hata_file = hata_file[:-1] # stip off more
#print "hata ", hata_file
cmd = "CRX2RNX " + hata_file
print "Hatanaka uncompress: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# figure out the rinex file name
(tmp, rinexfile) = os.path.split(rinex)
inputfile = rinexfile[:-2] # strip off ".Z"
if inputfile[-1] == ".": # ends in a dot
inputfile = inputfile[:-1] # strip off
if inputfile[-1] == "d" or inputfile[-1] == "D":
# if hatanaka compressed, we already uncompressed, so change to "O"
inputfile = inputfile[:-1] + "O"
# now ppp itself:
os.chdir(tempdir)
antfile = prefixdir + "/common/igs08.atx"
outfile = tempdir + "out.txt"
eph = copied_files[2]
clk = copied_files[1]
inputfile = tempdir + inputfile
print "inputfile for gLAB is: ", inputfile
cmd = glab_binary # must have this executable in path
# see doc/glab_options.txt
options = [
" -input:obs %s" % inputfile, # RINEX observation file
" -input:clk %s" % clk,
" -input:orb %s" % eph, # SP3 Orbits
" -input:ant %s" % antfile,
# " -model:recphasecenter ANTEX",
# " -model:recphasecenter no",
" -model:trop", # correct for troposphere
#" -model:iono FPPP",
" -output:file %s" % outfile,
" -pre:dec 30", # rinex data is at 30s intervals, don't decimate
" -pre:elevation 10", # elevation mask
" -pre:availf G12" # GPS frequencies L1 and L2
" -filter:trop",
" -filter:backward", # runs filter both FWD and BWD
" --print:input", # discard unnecessary output
" --print:model",
" --print:prefit",
" --print:postfit",
" --print:satellites"
]
if station.antex:
options.append(" -model:recphasecenter ANTEX")
else:
options.append(
" -model:recphasecenter no"
) # USNO receiver antenna is not in igs08.atx (?should it be?)
for opt in options:
cmd += opt
p = subprocess.Popen(cmd, shell=True, cwd=tempdir)
p.communicate() # wait for processing to finish
dt_end = datetime.datetime.utcnow()
delta = dt_end - dt_start
run_log2 = " run end: %d-%02d-%02d %02d:%02d:%02d\n" % (
dt_end.year, dt_end.month, dt_end.day, dt_end.hour, dt_end.minute,
dt_end.second)
run_log2 += " elapsed: %.2f s\n" % (delta.seconds +
delta.microseconds / 1.0e6)
print run_log2
print "-------------------"
# here we may parse the output and store it to file somewhere
ppp_result = glab_parse_result(outfile, station)
ppp_common.write_result_file(ppp_result=ppp_result,
preamble=run_log + run_log2,
rapid=rapid,
tag=glab_tag,
prefixdir=prefixdir)
os.chdir(original_dir)
def run(station, dt, rapid=True, prefixdir=""):
"""
PPP run using RTKLib rnx2rtkp
"""
print "------------------------------"
print "PPP run using RTKLib rnx2rtkp"
original_dir = prefixdir
dt_start = datetime.datetime.utcnow()
doy = dt.timetuple().tm_yday
rinex = station.get_rinex( dt ) # doenload rinex file
# GET NAV file
navfile = igs_ftp.cddis_brdc_file(dt, prefixdir)
# download IGS products
(clk, eph, erp) = igs_ftp.get_CODE_rapid(dt, prefixdir)
# log input files, for writing to the result file
run_log = " run start: %d-%02d-%02d %02d:%02d:%02d\n" % ( dt_start.year, dt_start.month, dt_start.day, dt_start.hour, dt_start.minute, dt_start.second)
run_log += " Station: %s\n" % station.name
run_log += " Year: %d\n" % dt.year
run_log += " DOY: %03d\n" % doy
run_log += " date: %d-%02d-%02d\n" % (dt.year, dt.month, dt.day)
run_log += " RINEX: %s\n" % rinex
run_log += " CLK: %s\n" % clk
run_log += " EPH: %s\n" % eph
run_log += " ERP: %s\n" % erp
print run_log
# we do processing in a temp directory
tempdir = prefixdir + "/temp/"
ftp_tools.check_dir( tempdir )
ftp_tools.delete_files(tempdir) # empty the temp directory
# copy files to tempdir
files_to_copy = [ rinex, clk, eph, eph, erp, navfile ]
copied_files = []
for f in files_to_copy:
shutil.copy2( f, tempdir )
(tmp,fn ) = os.path.split(f)
copied_files.append( tempdir + fn )
# unzip zipped files, if needed
for f in copied_files:
if f[-1] == "Z" or f[-1] == "z": # compressed .z or .Z file
cmd ='/bin/gunzip'
cmd = cmd + " -f " + f # -f overwrites existing file
print "unzipping: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# Hatanaka uncompress - if needed
#rinexfile = copied_files[0] # the first file is the unzipped RINEX, in the temp dir
if rinex[-3] == "d" or rinex[-3] == "D" or rinex[-4] == "D":
hata_file = copied_files[0]
hata_file = hata_file[:-2] # strip off ".Z"
if hata_file[-1] == ".":
hata_file = hata_file[:-1] # stip off more
#print "hata ", hata_file
cmd = "CRX2RNX " + hata_file
print "Hatanaka uncompress: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# figure out the rinex file name
(tmp,rinexfile ) = os.path.split(rinex)
inputfile = rinexfile[:-2] # strip off ".Z"
if inputfile[-1] == ".": # ends in a dot
inputfile = inputfile[:-1] # strip off
if inputfile[-1] == "d" or inputfile[-1] == "D":
# if hatanaka compressed, we already uncompressed, so change to "O"
inputfile = inputfile[:-1]+"O"
# now ppp itself:
os.chdir( tempdir )
antfile = prefixdir + "/common/igs08.atx"
outfile = tempdir + "out.txt"
clk = copied_files[1]
# RKLib wants eph files to be named sp3
# from CODE they end .CLK_R
clk_new = clk[:-6]+".clk"
cmd = "cp "+clk + " " + clk_new
#print cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
clk = clk_new
print clk
# RKLib wants eph files to be named sp3
# from CODE they end .CLK_R
eph = copied_files[2]
eph_new = eph[:-6]+".sp3"
cmd = "cp "+eph + " " + eph_new
#print cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
eph = eph_new
print eph
navfile = copied_files[5]
navfile = navfile[:-2] # strip off ".Z"
inputfile = tempdir+inputfile
print "input ", inputfile
print "nav ", navfile
print "clk ", clk
print "eph ", eph
cmd = rtklib_binary # must have this executable in path
conf_file = prefixdir + "/common/rtklib_opts1.conf"
options = [ " -k %s"%conf_file,
#" -p 7", # mode 7:ppp-static
#" -t", # lat/lon/height time output
#" -u", # UTC time Don't use it, we get epochs of min:11 and min:41 instead of min:00 and min:00
#" -d %d" % 12, # number of decimals in time output
" -o %s" % outfile,
#" -m 10", # elevation mask
#" -c", # combined forward/backward solutions
#" -y 1", # state output
#" -h", # fix and hold for integer ambiguity resolution [off]
#" -f 2", # 2:L1+L2
#" -x 2", # debug level
" %s" % eph,
" %s" % clk,
" %s" % inputfile, # RINEX file
" %s" % navfile, # brdc NAV file
#" %s" % (prefixdir + "/common/igs08.atx")
]
for opt in options:
cmd += opt
p = subprocess.Popen(cmd, shell=True, cwd = tempdir )
p.communicate() # wait for processing to finish
dt_end = datetime.datetime.utcnow()
delta = dt_end-dt_start
run_log2 = " run end: %d-%02d-%02d %02d:%02d:%02d\n" % ( dt_end.year, dt_end.month, dt_end.day, dt_end.hour, dt_end.minute, dt_end.second)
run_log2 += " elapsed: %.2f s\n" % (delta.seconds+delta.microseconds/1.0e6)
print run_log2
# here we may parse the output and store it to file somewhere
ppp_result = parse_result(outfile, station)
result_file = ppp_common.write_result_file( ppp_result=ppp_result, preamble=run_log+run_log2, rapid=rapid, tag=rtklib_tag, prefixdir=prefixdir )
os.chdir(original_dir) # change back to original directory
def run(station, dt, rapid=True, prefixdir=""):
"""
PPP run using ESA gLAB
"""
print "ESA gLAB PPP-run"
original_dir = prefixdir
dt_start = datetime.datetime.utcnow()
doy = dt.timetuple().tm_yday
rinex = station.get_rinex( dt ) # download rinex file
print "getting IGS products:"
# download IGS products
(clk, eph, erp) = igs_ftp.get_CODE_rapid(dt, prefixdir)
print "IGS products done."
print "-------------------"
# log input files, for writing to the result file
run_log = " run start: %d-%02d-%02d %02d:%02d:%02d\n" % ( dt_start.year, dt_start.month, dt_start.day, dt_start.hour, dt_start.minute, dt_start.second)
run_log += " Station: %s\n" % station.name
run_log += " Year: %d\n" % dt.year
run_log += " DOY: %03d\n" % doy
run_log += " date: %d-%02d-%02d\n" % (dt.year, dt.month, dt.day)
run_log += " RINEX: %s\n" % rinex
run_log += " CLK: %s\n" % clk
run_log += " EPH: %s\n" % eph
run_log += " ERP: %s\n" % erp
print run_log
print "-------------------"
# we do processing in a temp directory
tempdir = prefixdir + "/temp/"
ftp_tools.check_dir( tempdir )
ftp_tools.delete_files(tempdir) # empty the temp directory
# copy files to tempdir
files_to_copy = [ rinex, clk, eph, eph, erp ]
copied_files = []
for f in files_to_copy:
shutil.copy2( f, tempdir )
(tmp,fn ) = os.path.split(f)
copied_files.append( tempdir + fn )
# unzip zipped files, if needed
for f in copied_files:
if f[-1] == "Z" or f[-1] == "z": # compressed .z or .Z file
cmd ='/bin/gunzip'
cmd = cmd + " -f " + f # -f overwrites existing file
print "unzipping: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# Hatanaka uncompress - if needed
#rinexfile = copied_files[0] # the first file is the unzipped RINEX, in the temp dir
if rinex[-3] == "d" or rinex[-3] == "D" or rinex[-4] == "D": # can end .z, .Z, or .gz - so the "d" is in position -3 or -4
hata_file = copied_files[0]
hata_file = hata_file[:-2] # strip off ".Z"
if rinex[-4] == "D":
hata_file = hata_file[:-1] # stip off more
#print "hata ", hata_file
cmd = "CRX2RNX " + hata_file
print "Hatanaka uncompress: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# figure out the rinex file name
(tmp,rinexfile ) = os.path.split(rinex)
inputfile = rinexfile[:-2] # strip off ".Z"
if inputfile[-1] == ".": # ends in a dot
inputfile = inputfile[:-1] # strip off
if inputfile[-1] == "d" or inputfile[-1] == "D":
# if hatanaka compressed, we already uncompressed, so change to "O"
inputfile = inputfile[:-1]+"O"
# now ppp itself:
os.chdir( tempdir )
antfile = prefixdir + "/common/igs08.atx"
outfile = tempdir + "out.txt"
eph = copied_files[2]
clk = copied_files[1]
inputfile = tempdir + inputfile
print "inputfile for gLAB is: ",inputfile
cmd = glab_binary # must have this executable in path
# see doc/glab_options.txt
options = [ " -input:obs %s" % inputfile, # RINEX observation file
" -input:clk %s" % clk,
" -input:orb %s" % eph, # SP3 Orbits
" -input:ant %s" % antfile,
# " -model:recphasecenter ANTEX",
# " -model:recphasecenter no",
" -model:trop", # correct for troposphere
#" -model:iono FPPP",
" -output:file %s" % outfile,
" -pre:dec 30", # rinex data is at 30s intervals, don't decimate
" -pre:elevation 10", # elevation mask
" -pre:availf G12" # GPS frequencies L1 and L2
" -filter:trop",
" -filter:backward", # runs filter both FWD and BWD
" --print:input", # discard unnecessary output
" --print:model",
" --print:prefit",
" --print:postfit",
" --print:satellites" ]
if station.antex:
options.append(" -model:recphasecenter ANTEX")
else:
options.append(" -model:recphasecenter no") # USNO receiver antenna is not in igs08.atx (?should it be?)
for opt in options:
cmd += opt
p = subprocess.Popen(cmd, shell=True, cwd = tempdir )
p.communicate() # wait for processing to finish
dt_end = datetime.datetime.utcnow()
delta = dt_end-dt_start
run_log2 = " run end: %d-%02d-%02d %02d:%02d:%02d\n" % ( dt_end.year, dt_end.month, dt_end.day, dt_end.hour, dt_end.minute, dt_end.second)
run_log2 += " elapsed: %.2f s\n" % (delta.seconds+delta.microseconds/1.0e6)
print run_log2
print "-------------------"
# here we may parse the output and store it to file somewhere
ppp_result = glab_parse_result(outfile, station)
ppp_common.write_result_file( ppp_result=ppp_result, preamble=run_log+run_log2, rapid=rapid, tag=glab_tag, prefixdir=prefixdir )
os.chdir(original_dir)
def run(station, dt, rapid=True, prefixdir=""):
"""
PPP-processing with NRCan ppp.
requires "gpsppp" binary
"""
print "------------------------------------"
print "PPP-processing with NRCan ppp."
original_dir = prefixdir
dt_start = datetime.datetime.utcnow() # for timing how long processing takes
year = dt.timetuple().tm_year
doy = dt.timetuple().tm_yday
rinex = station.get_rinex( dt ) # this downloads RINEX over ftp, if needed
# get GPS Products
# nrcan ppp wants IGS products for two days.
# if we process day N, we need products for N and N+1
clk_files =[]
eph_files = []
erp_file = "" # we do not use the ERP files, for now.
if not rapid: # Final products
(clk1, eph1, erp1) = igs_ftp.get_CODE_final(dt, prefixdir)
(clk2, eph2, erp2) = igs_ftp.get_CODE_final(dt+datetime.timedelta(days=1), prefixdir)
clk_files = [ clk1, clk2 ]
eph_files = [ eph1, eph2 ]
erp_file = erp1
elif rapid: # Rapid products
(clk1, eph1, erp1) = igs_ftp.get_CODE_rapid(dt, prefixdir)
(clk2, eph2, erp2) = igs_ftp.get_CODE_rapid(dt+datetime.timedelta(days=1), prefixdir )
clk_files = [ clk1, clk2 ]
eph_files = [ eph1, eph2 ]
erp_file = erp1
# we do processing in a temp directory
tempdir = prefixdir + "/temp/"
ftp_tools.check_dir( tempdir )
ftp_tools.delete_files(tempdir) # empty the temp directory
# us an existing cmd-file (doesn't change from run to run)
cmdfile = prefixdir + "/gpsppp/1day.cmd"
# write an INP file, corresponding to the keyboard-input required
inp_file = nrcan_inp_file( tempdir + "run.inp", rinex, cmdfile, eph_files, clk_files, rapid )
# write a DEF file
nrcan_def_file( prefixdir, "gpsppp.def")
# result will be stored in a POS file:
(rinexdir, fn ) = os.path.split(rinex)
if fn[-3:] == ".gz":
nrcan_pos_file = tempdir + fn[:-6] + "pos"
else:
nrcan_pos_file = tempdir + fn[:-5] + "pos"
run_log = ""
run_log += " run start: %d-%02d-%02d %02d:%02d:%02d\n" % ( dt_start.year, dt_start.month, dt_start.day, dt_start.hour, dt_start.minute, dt_start.second)
run_log += " Program: %s\n" % gpsppp_version
run_log += " Station: %s\n" % station.name
run_log += " Year: %d\n" % year
run_log += " DOY: %03d\n" % doy
run_log += " date: %d-%02d-%02d\n" % (dt.year, dt.month, dt.day)
run_log += " RINEX: %s\n" % rinex
run_log += " CLK: %s\n" % clk_files # allow for multiple clk-files!?
run_log += " EPH: %s\n" % eph_files
run_log += " ERP: %s\n" % erp_file
print run_log
# move RINEX, CLK, EPH, ERP files to temp_dir
files_to_move = [ rinex, clk1, clk2, eph1, eph2, erp_file ]
moved_files = []
for f in files_to_move:
shutil.copy2( f, tempdir )
(tmp,fn ) = os.path.split(f)
moved_files.append( tempdir + fn )
print moved_files
# unzip zipped files. this may include the RINEX, CLK, EPH files.
for f in moved_files:
if f[-1] == "Z" or f[-1] == "z": # compressed .z or .Z file
cmd ='/bin/gunzip'
cmd = cmd + " -f " + f # -f overwrites existing file
print "unzipping: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# rename the ERP file - becase the name is fixed to gpsppp.ERP in the DEF file.
cmd ='/bin/mv'
gpsppp_erp = prefixdir + "/temp/gpsppp.ERP"
(tmp,fn ) = os.path.split(erp_file) # [:-2]
cmd = cmd + " " + tempdir + fn + " " + gpsppp_erp
print "rename command: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# figure out the rinex file name
print "rinex= ", rinex
(tmp,rinexfile ) = os.path.split(rinex)
inputfile = rinexfile[:-2] # strip off ".Z"
if inputfile[-1] == ".": # ends in a dot
inputfile = inputfile[:-1] # strip off
# if the RINEX file is hatanaka-compressed, uncompress it
if inputfile[-1] == "d" or inputfile[-1] == "D":
hata_file = moved_files[0]
hata_file = hata_file[:-2] # strip off ".Z"
if hata_file[-1] == ".":
hata_file = hata_file[:-1] # stip off more
cmd = "CRX2RNX " + hata_file
print "Hatanaka uncompress: ", cmd
p = subprocess.Popen(cmd, shell=True)
p.communicate()
# now gpsppp itself:
os.chdir( tempdir )
cmd = gpsppp_binary + " < " + inp_file
p = subprocess.Popen(cmd, shell=True, cwd = tempdir )
p.communicate() # wait for processing to finish
dt_end = datetime.datetime.utcnow()
delta = dt_end-dt_start
run_log2 = " run end: %d-%02d-%02d %02d:%02d:%02d\n" % ( dt_end.year, dt_end.month, dt_end.day, dt_end.hour, dt_end.minute, dt_end.second)
run_log2 += " elapsed: %.2f s\n" % (delta.seconds+delta.microseconds/1.0e6)
print run_log2
print "---------------------------------"
# we may now do postprocessing and store the results.
# the result is named RINEX.pos, for example "usn63440.pos"
ppp_result = nrcan_parse_result(nrcan_pos_file, station, inputfile, bwd=True)
result_file = ppp_common.write_result_file( ppp_result=ppp_result, preamble=run_log+run_log2, rapid=rapid, tag=gpsppp_tag, prefixdir=prefixdir )
os.chdir(original_dir) # change back to original directory
return result_file