UAVSAR_Stack: bugfix for line/sample num and dopplerFile path (#431)
* UAVSAR_Stack: bugfix for line/sample num and dopplerFile path + UAVSAR_Stack: use segment index while setting the number of lines / samples + UAVSAR_Stack: use self.dopplerFile if it exists otherwise use the path from *.ann file, to support unpackFrame_UAVSAR.py when dop file is not in the current directory + unpackFrame_UAVSAR: rename variables and comments to improve code readability * use getattr() instead of hasattr()LT1AB
Zhang Yunjun
GitHub
parent
dfa202456a
commit
9adf1955fc
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@ -146,14 +146,11 @@ class UAVSAR_Stack(Component):
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frame.setSensingStart(tStart)
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frame.setSensingStop(tStop)
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frame.setSensingMid(tMid)
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frame.setNumberOfLines(
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int(self.metadata['slc_1_1x1_mag.set_rows']))
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frame.setNumberOfSamples(
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int(self.metadata['slc_1_1x1_mag.set_cols']))
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frame.setNumberOfLines(int(self.metadata['slc_{}_1x1_mag.set_rows'.format(self.segment_index)]))
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frame.setNumberOfSamples(int(self.metadata['slc_{}_1x1_mag.set_cols'.format(self.segment_index)]))
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frame.setPolarization(self.metadata['Polarization'])
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frame.C0 = self.metadata['slc_1_1x1_mag.col_addr']
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frame.S0 = self.metadata[
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'Segment {} Data Starting Azimuth'.format(self.segment_index)]
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frame.C0 = self.metadata['slc_{}_1x1_mag.col_addr'.format(self.segment_index)]
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frame.S0 = self.metadata['Segment {} Data Starting Azimuth'.format(self.segment_index)]
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frame.nearLookAngle = self.metadata['Minimum Look Angle']
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frame.farLookAngle = self.metadata['Maximum Look Angle']
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frame.setStartingRange(self.startingRange)
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@ -175,8 +172,7 @@ class UAVSAR_Stack(Component):
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#of values in degrees at each corner (without rdf unit specified)
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llC = []
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for ic in range(1,5):
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key = 'Segment {0} Data Approximate Corner {1}'.format(
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self.segment_index, ic)
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key = 'Segment {0} Data Approximate Corner {1}'.format(self.segment_index, ic)
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self.logger.info("key = {}".format(key))
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self.logger.info("metadata[key] = {}".format(self.metadata[key], type(self.metadata[key])))
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llC.append(list(map(float, self.metadata[key].split(','))))
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@ -316,9 +312,9 @@ class UAVSAR_Stack(Component):
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drho = instrument.getRangePixelSize() #full res value, not spacing in the dop file
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prf = instrument.getPulseRepetitionFrequency()
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self.logger.info("extractDoppler: rho0, drho, prf = {}, {}, {}".format(rho0, drho, prf))
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dopfile = self.metadata['dop']
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f = open(dopfile,'r')
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x = f.readlines() #first line is a header
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dopfile = getattr(self, 'dopplerFile', self.metadata['dop'])
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with open(dopfile,'r') as f:
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x = f.readlines() #first line is a header
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import numpy
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z = numpy.array(
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@ -337,21 +333,20 @@ class UAVSAR_Stack(Component):
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res2 = fit[1][0] #sum of squared residuals
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self.logger.info("coeffs = {}".format(coefs))
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self.logger.info("rms residual = {}".format(numpy.sqrt(res2/len(dop))))
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o = open("dop.txt", 'w')
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for i, d in zip(rhoi, dop):
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val = polyval(coefs,i)
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res = d-val
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o.write("{0} {1} {2} {3}\n".format(i, d, val, res))
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dopfile = self.metadata['dop']
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with open("dop.txt", 'w') as o:
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for i, d in zip(rhoi, dop):
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val = polyval(coefs,i)
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res = d-val
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o.write("{0} {1} {2} {3}\n".format(i, d, val, res))
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self.dopplerVals = {'Near':polyval(coefs, 0)} #need this temporarily in this module
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self.logger.info("UAVSAR_Stack.extractDoppler: self.dopplerVals = {}".format(self.dopplerVals))
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self.logger.info("UAVSAR_Stack.extractDoppler: prf = {}".format(prf))
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#The doppler file values are in units rad/m. divide by 2*pi rad/cycle to convert
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#to cycle/m. Then multiply by velocity to get Hz and divide by prf for dimensionless
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#doppler coefficients
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#The doppler file values are in units rad/m. divide by 2*pi rad/cycle to convert
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#to cycle/m. Then multiply by velocity to get Hz and divide by prf for dimensionless
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#doppler coefficients
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dop_scale = self.velocity/2.0/math.pi
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coefs = [x*dop_scale for x in coefs]
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#Set the coefs in frame._dopplerVsPixel because that is where DefaultDopp looks for them
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@ -361,14 +356,14 @@ class UAVSAR_Stack(Component):
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@property
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def terrainHeight(self):
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#The peg point incorporates the actual terrainHeight
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#The peg point incorporates the actual terrainHeight
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return 0.0
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@property
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def platformHeight(self):
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h = self.metadata['Global Average Altitude']
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#Reduce the platform height by the terrain height because the
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#peg radius of curvature includes the terrain height
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#Reduce the platform height by the terrain height because the
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#peg radius of curvature includes the terrain height
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h -= self.metadata['Global Average Terrain Height']
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return h
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@ -1,14 +1,15 @@
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#!/usr/bin/env python3
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# modified to pass the segment number to UAVSAR_STACK sensor EJF 2020/08/02
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import os
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import glob
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import argparse
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import shelve
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import isce
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from isceobj.Sensor import createSensor
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import shelve
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import argparse
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import glob
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from isceobj.Util import Poly1D
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from isceobj.Planet.AstronomicalHandbook import Const
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import os
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def cmdLineParse():
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'''
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@ -16,46 +17,46 @@ def cmdLineParse():
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'''
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parser = argparse.ArgumentParser(description='Unpack UAVSAR SLC data and store metadata in pickle file.')
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parser.add_argument('-i','--input', dest='h5dir', type=str,
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required=True, help='Input UAVSAR directory')
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parser.add_argument('-i','--input', dest='metaFile', type=str,
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required=True, help='metadata file')
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parser.add_argument('-d','--dop_file', dest='dopFile', type=str,
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default=None, help='Doppler file')
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parser.add_argument('-s','--segment', dest='stackSegment', type=int,
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default=1, help='stack segment')
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parser.add_argument('-o', '--output', dest='slcdir', type=str,
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parser.add_argument('-o', '--output', dest='slcDir', type=str,
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required=True, help='Output SLC directory')
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return parser.parse_args()
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def unpack(hdf5, slcname, dopFile, stackSegment, parse=False):
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def unpack(metaFile, slcDir, dopFile, stackSegment, parse=False):
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'''
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Unpack HDF5 to binary SLC file.
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Prepare shelve/pickle file for the binary SLC file.
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'''
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obj = createSensor('UAVSAR_STACK')
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obj.configure()
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obj.metadataFile = hdf5
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obj.metadataFile = metaFile
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obj.dopplerFile = dopFile
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obj.segment_index = stackSegment
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obj.parse()
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if not os.path.isdir(slcname):
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os.mkdir(slcname)
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if not os.path.isdir(slcDir):
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os.mkdir(slcDir)
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pickName = os.path.join(slcname, 'data')
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pickName = os.path.join(slcDir, 'data')
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with shelve.open(pickName) as db:
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db['frame'] = obj.frame
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if __name__ == '__main__':
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'''
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Main driver.
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'''
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inps = cmdLineParse()
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if inps.slcdir.endswith('/'):
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inps.slcdir = inps.slcdir[:-1]
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inps.slcDir = inps.slcDir.rstrip('/')
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inps.metaFile = os.path.abspath(inps.metaFile)
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inps.dopFile = os.path.abspath(inps.dopFile)
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inps.slcDir = os.path.abspath(inps.slcDir)
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if inps.h5dir.endswith('/'):
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inps.h5dir = inps.h5dir[:-1]
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unpack(inps.h5dir, inps.slcdir, inps.dopFile, inps.stackSegment)
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unpack(inps.metaFile, inps.slcDir, inps.dopFile, inps.stackSegment)
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