|
|
'''
|
|
|
Created on Nov 9, 2016
|
|
|
|
|
|
@author: roj- LouVD
|
|
|
'''
|
|
|
|
|
|
|
|
|
import os
|
|
|
import sys
|
|
|
import time
|
|
|
import glob
|
|
|
import datetime
|
|
|
|
|
|
import numpy
|
|
|
|
|
|
from schainpy.model.proc.jroproc_base import ProcessingUnit
|
|
|
from schainpy.model.data.jrodata import Parameters
|
|
|
from schainpy.model.io.jroIO_base import JRODataReader, isNumber
|
|
|
from schainpy.utils import log
|
|
|
|
|
|
FILE_HEADER_STRUCTURE = numpy.dtype([
|
|
|
('FMN', '<u4'),
|
|
|
('nrec', '<u4'),
|
|
|
('fr_offset', '<u4'),
|
|
|
('id', '<u4'),
|
|
|
('site', 'u1', (32,))
|
|
|
])
|
|
|
|
|
|
REC_HEADER_STRUCTURE = numpy.dtype([
|
|
|
('rmn', '<u4'),
|
|
|
('rcounter', '<u4'),
|
|
|
('nr_offset', '<u4'),
|
|
|
('tr_offset', '<u4'),
|
|
|
('time', '<u4'),
|
|
|
('time_msec', '<u4'),
|
|
|
('tag', 'u1', (32,)),
|
|
|
('comments', 'u1', (32,)),
|
|
|
('lat', '<f4'),
|
|
|
('lon', '<f4'),
|
|
|
('gps_status', '<u4'),
|
|
|
('freq', '<u4'),
|
|
|
('freq0', '<u4'),
|
|
|
('nchan', '<u4'),
|
|
|
('delta_r', '<u4'),
|
|
|
('nranges', '<u4'),
|
|
|
('r0', '<u4'),
|
|
|
('prf', '<u4'),
|
|
|
('ncoh', '<u4'),
|
|
|
('npoints', '<u4'),
|
|
|
('polarization', '<i4'),
|
|
|
('rx_filter', '<u4'),
|
|
|
('nmodes', '<u4'),
|
|
|
('dmode_index', '<u4'),
|
|
|
('dmode_rngcorr', '<u4'),
|
|
|
('nrxs', '<u4'),
|
|
|
('acf_length', '<u4'),
|
|
|
('acf_lags', '<u4'),
|
|
|
('sea_to_atmos', '<f4'),
|
|
|
('sea_notch', '<u4'),
|
|
|
('lh_sea', '<u4'),
|
|
|
('hh_sea', '<u4'),
|
|
|
('nbins_sea', '<u4'),
|
|
|
('min_snr', '<f4'),
|
|
|
('min_cc', '<f4'),
|
|
|
('max_time_diff', '<f4')
|
|
|
])
|
|
|
|
|
|
DATA_STRUCTURE = numpy.dtype([
|
|
|
('range', '<u4'),
|
|
|
('status', '<u4'),
|
|
|
('zonal', '<f4'),
|
|
|
('meridional', '<f4'),
|
|
|
('vertical', '<f4'),
|
|
|
('zonal_a', '<f4'),
|
|
|
('meridional_a', '<f4'),
|
|
|
('corrected_fading', '<f4'), # seconds
|
|
|
('uncorrected_fading', '<f4'), # seconds
|
|
|
('time_diff', '<f4'),
|
|
|
('major_axis', '<f4'),
|
|
|
('axial_ratio', '<f4'),
|
|
|
('orientation', '<f4'),
|
|
|
('sea_power', '<u4'),
|
|
|
('sea_algorithm', '<u4')
|
|
|
])
|
|
|
|
|
|
class BLTRParamReader(JRODataReader, ProcessingUnit):
|
|
|
'''
|
|
|
Boundary Layer and Tropospheric Radar (BLTR) reader, Wind velocities and SNR from *.sswma files
|
|
|
'''
|
|
|
|
|
|
ext = '.sswma'
|
|
|
|
|
|
def __init__(self, **kwargs):
|
|
|
|
|
|
ProcessingUnit.__init__(self , **kwargs)
|
|
|
|
|
|
self.dataOut = Parameters()
|
|
|
self.counter_records = 0
|
|
|
self.flagNoMoreFiles = 0
|
|
|
self.isConfig = False
|
|
|
self.filename = None
|
|
|
|
|
|
def setup(self,
|
|
|
path=None,
|
|
|
startDate=None,
|
|
|
endDate=None,
|
|
|
ext=None,
|
|
|
startTime=datetime.time(0, 0, 0),
|
|
|
endTime=datetime.time(23, 59, 59),
|
|
|
timezone=0,
|
|
|
status_value=0,
|
|
|
**kwargs):
|
|
|
|
|
|
self.path = path
|
|
|
self.startDate = startDate
|
|
|
self.endDate = endDate
|
|
|
self.startTime = startTime
|
|
|
self.endTime = endTime
|
|
|
self.status_value = status_value
|
|
|
self.datatime = datetime.datetime(1900,1,1)
|
|
|
|
|
|
if self.path is None:
|
|
|
raise ValueError, "The path is not valid"
|
|
|
|
|
|
if ext is None:
|
|
|
ext = self.ext
|
|
|
|
|
|
self.search_files(self.path, startDate, endDate, ext)
|
|
|
self.timezone = timezone
|
|
|
self.fileIndex = 0
|
|
|
|
|
|
if not self.fileList:
|
|
|
raise Warning, "There is no files matching these date in the folder: %s. \n Check 'startDate' and 'endDate' "%(path)
|
|
|
|
|
|
self.setNextFile()
|
|
|
|
|
|
def search_files(self, path, startDate, endDate, ext):
|
|
|
'''
|
|
|
Searching for BLTR rawdata file in path
|
|
|
Creating a list of file to proces included in [startDate,endDate]
|
|
|
|
|
|
Input:
|
|
|
path - Path to find BLTR rawdata files
|
|
|
startDate - Select file from this date
|
|
|
enDate - Select file until this date
|
|
|
ext - Extension of the file to read
|
|
|
|
|
|
'''
|
|
|
|
|
|
log.success('Searching files in {} '.format(path), 'BLTRParamReader')
|
|
|
foldercounter = 0
|
|
|
fileList0 = glob.glob1(path, "*%s" % ext)
|
|
|
fileList0.sort()
|
|
|
|
|
|
self.fileList = []
|
|
|
self.dateFileList = []
|
|
|
|
|
|
for thisFile in fileList0:
|
|
|
year = thisFile[-14:-10]
|
|
|
if not isNumber(year):
|
|
|
continue
|
|
|
|
|
|
month = thisFile[-10:-8]
|
|
|
if not isNumber(month):
|
|
|
continue
|
|
|
|
|
|
day = thisFile[-8:-6]
|
|
|
if not isNumber(day):
|
|
|
continue
|
|
|
|
|
|
year, month, day = int(year), int(month), int(day)
|
|
|
dateFile = datetime.date(year, month, day)
|
|
|
|
|
|
if (startDate > dateFile) or (endDate < dateFile):
|
|
|
continue
|
|
|
|
|
|
self.fileList.append(thisFile)
|
|
|
self.dateFileList.append(dateFile)
|
|
|
|
|
|
return
|
|
|
|
|
|
def setNextFile(self):
|
|
|
|
|
|
file_id = self.fileIndex
|
|
|
|
|
|
if file_id == len(self.fileList):
|
|
|
log.success('No more files in the folder', 'BLTRParamReader')
|
|
|
self.flagNoMoreFiles = 1
|
|
|
return 0
|
|
|
|
|
|
log.success('Opening {}'.format(self.fileList[file_id]), 'BLTRParamReader')
|
|
|
filename = os.path.join(self.path, self.fileList[file_id])
|
|
|
|
|
|
dirname, name = os.path.split(filename)
|
|
|
self.siteFile = name.split('.')[0] # 'peru2' ---> Piura - 'peru1' ---> Huancayo or Porcuya
|
|
|
if self.filename is not None:
|
|
|
self.fp.close()
|
|
|
self.filename = filename
|
|
|
self.fp = open(self.filename, 'rb')
|
|
|
self.header_file = numpy.fromfile(self.fp, FILE_HEADER_STRUCTURE, 1)
|
|
|
self.nrecords = self.header_file['nrec'][0]
|
|
|
self.sizeOfFile = os.path.getsize(self.filename)
|
|
|
self.counter_records = 0
|
|
|
self.flagIsNewFile = 0
|
|
|
self.fileIndex += 1
|
|
|
|
|
|
return 1
|
|
|
|
|
|
def readNextBlock(self):
|
|
|
|
|
|
while True:
|
|
|
if self.counter_records == self.nrecords:
|
|
|
self.flagIsNewFile = 1
|
|
|
if not self.setNextFile():
|
|
|
return 0
|
|
|
|
|
|
self.readBlock()
|
|
|
|
|
|
if (self.datatime < datetime.datetime.combine(self.startDate, self.startTime)) or \
|
|
|
(self.datatime > datetime.datetime.combine(self.endDate, self.endTime)):
|
|
|
log.warning(
|
|
|
'Reading Record No. {}/{} -> {} [Skipping]'.format(
|
|
|
self.counter_records,
|
|
|
self.nrecords,
|
|
|
self.datatime.ctime()),
|
|
|
'BLTRParamReader')
|
|
|
continue
|
|
|
break
|
|
|
|
|
|
log.log('Reading Record No. {}/{} -> {}'.format(
|
|
|
self.counter_records,
|
|
|
self.nrecords,
|
|
|
self.datatime.ctime()), 'BLTRParamReader')
|
|
|
|
|
|
return 1
|
|
|
|
|
|
def readBlock(self):
|
|
|
|
|
|
pointer = self.fp.tell()
|
|
|
header_rec = numpy.fromfile(self.fp, REC_HEADER_STRUCTURE, 1)
|
|
|
self.nchannels = header_rec['nchan'][0]/2
|
|
|
self.kchan = header_rec['nrxs'][0]
|
|
|
self.nmodes = header_rec['nmodes'][0]
|
|
|
self.nranges = header_rec['nranges'][0]
|
|
|
self.fp.seek(pointer)
|
|
|
self.height = numpy.empty((self.nmodes, self.nranges))
|
|
|
self.snr = numpy.empty((self.nmodes, self.nchannels, self.nranges))
|
|
|
self.buffer = numpy.empty((self.nmodes, 3, self.nranges))
|
|
|
self.flagDiscontinuousBlock = 0
|
|
|
|
|
|
for mode in range(self.nmodes):
|
|
|
self.readHeader()
|
|
|
data = self.readData()
|
|
|
self.height[mode] = (data[0] - self.correction) / 1000.
|
|
|
self.buffer[mode] = data[1]
|
|
|
self.snr[mode] = data[2]
|
|
|
|
|
|
self.counter_records = self.counter_records + self.nmodes
|
|
|
|
|
|
return
|
|
|
|
|
|
def readHeader(self):
|
|
|
'''
|
|
|
RecordHeader of BLTR rawdata file
|
|
|
'''
|
|
|
|
|
|
header_structure = numpy.dtype(
|
|
|
REC_HEADER_STRUCTURE.descr + [
|
|
|
('antenna_coord', 'f4', (2, self.nchannels)),
|
|
|
('rx_gains', 'u4', (self.nchannels,)),
|
|
|
('rx_analysis', 'u4', (self.nchannels,))
|
|
|
]
|
|
|
)
|
|
|
|
|
|
self.header_rec = numpy.fromfile(self.fp, header_structure, 1)
|
|
|
self.lat = self.header_rec['lat'][0]
|
|
|
self.lon = self.header_rec['lon'][0]
|
|
|
self.delta = self.header_rec['delta_r'][0]
|
|
|
self.correction = self.header_rec['dmode_rngcorr'][0]
|
|
|
self.imode = self.header_rec['dmode_index'][0]
|
|
|
self.antenna = self.header_rec['antenna_coord']
|
|
|
self.rx_gains = self.header_rec['rx_gains']
|
|
|
self.time = self.header_rec['time'][0]
|
|
|
dt = datetime.datetime.utcfromtimestamp(self.time)
|
|
|
if dt.date()>self.datatime.date():
|
|
|
self.flagDiscontinuousBlock = 1
|
|
|
self.datatime = dt
|
|
|
|
|
|
def readData(self):
|
|
|
'''
|
|
|
Reading and filtering data block record of BLTR rawdata file, filtering is according to status_value.
|
|
|
|
|
|
Input:
|
|
|
status_value - Array data is set to NAN for values that are not equal to status_value
|
|
|
|
|
|
'''
|
|
|
|
|
|
data_structure = numpy.dtype(
|
|
|
DATA_STRUCTURE.descr + [
|
|
|
('rx_saturation', 'u4', (self.nchannels,)),
|
|
|
('chan_offset', 'u4', (2 * self.nchannels,)),
|
|
|
('rx_amp', 'u4', (self.nchannels,)),
|
|
|
('rx_snr', 'f4', (self.nchannels,)),
|
|
|
('cross_snr', 'f4', (self.kchan,)),
|
|
|
('sea_power_relative', 'f4', (self.kchan,))]
|
|
|
)
|
|
|
|
|
|
data = numpy.fromfile(self.fp, data_structure, self.nranges)
|
|
|
|
|
|
height = data['range']
|
|
|
winds = numpy.array((data['zonal'], data['meridional'], data['vertical']))
|
|
|
snr = data['rx_snr'].T
|
|
|
|
|
|
winds[numpy.where(winds == -9999.)] = numpy.nan
|
|
|
winds[:, numpy.where(data['status'] != self.status_value)] = numpy.nan
|
|
|
snr[numpy.where(snr == -9999.)] = numpy.nan
|
|
|
snr[:, numpy.where(data['status'] != self.status_value)] = numpy.nan
|
|
|
snr = numpy.power(10, snr / 10)
|
|
|
|
|
|
return height, winds, snr
|
|
|
|
|
|
def set_output(self):
|
|
|
'''
|
|
|
Storing data from databuffer to dataOut object
|
|
|
'''
|
|
|
|
|
|
self.dataOut.data_SNR = self.snr
|
|
|
self.dataOut.height = self.height
|
|
|
self.dataOut.data = self.buffer
|
|
|
self.dataOut.utctimeInit = self.time
|
|
|
self.dataOut.utctime = self.dataOut.utctimeInit
|
|
|
self.dataOut.useLocalTime = False
|
|
|
self.dataOut.paramInterval = 157
|
|
|
self.dataOut.timezone = self.timezone
|
|
|
self.dataOut.site = self.siteFile
|
|
|
self.dataOut.nrecords = self.nrecords/self.nmodes
|
|
|
self.dataOut.sizeOfFile = self.sizeOfFile
|
|
|
self.dataOut.lat = self.lat
|
|
|
self.dataOut.lon = self.lon
|
|
|
self.dataOut.channelList = range(self.nchannels)
|
|
|
self.dataOut.kchan = self.kchan
|
|
|
self.dataOut.delta = self.delta
|
|
|
self.dataOut.correction = self.correction
|
|
|
self.dataOut.nmodes = self.nmodes
|
|
|
self.dataOut.imode = self.imode
|
|
|
self.dataOut.antenna = self.antenna
|
|
|
self.dataOut.rx_gains = self.rx_gains
|
|
|
self.dataOut.flagNoData = False
|
|
|
self.dataOut.flagDiscontinuousBlock = self.flagDiscontinuousBlock
|
|
|
|
|
|
def getData(self):
|
|
|
'''
|
|
|
Storing data from databuffer to dataOut object
|
|
|
'''
|
|
|
if self.flagNoMoreFiles:
|
|
|
self.dataOut.flagNoData = True
|
|
|
log.success('No file left to process', 'BLTRParamReader')
|
|
|
return 0
|
|
|
|
|
|
if not self.readNextBlock():
|
|
|
self.dataOut.flagNoData = True
|
|
|
return 0
|
|
|
|
|
|
self.set_output()
|
|
|
|
|
|
return 1
|
|
|
|
