458 lines
21 KiB
Python
458 lines
21 KiB
Python
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#
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# Author: Cunren Liang
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# Copyright 2015-present, NASA-JPL/Caltech
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#
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import os
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import logging
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import isceobj
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from isceobj.Constants import SPEED_OF_LIGHT
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logger = logging.getLogger('isce.alos2insar.runIonSubband')
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def runIonSubband(self):
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'''create subband interferograms
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'''
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catalog = isceobj.Catalog.createCatalog(self._insar.procDoc.name)
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self.updateParamemetersFromUser()
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if not self.doIon:
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catalog.printToLog(logger, "runIonSubband")
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self._insar.procDoc.addAllFromCatalog(catalog)
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return
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masterTrack = self._insar.loadTrack(master=True)
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slaveTrack = self._insar.loadTrack(master=False)
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#using 1/3, 1/3, 1/3 band split
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radarWavelength = masterTrack.radarWavelength
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rangeBandwidth = masterTrack.frames[0].swaths[0].rangeBandwidth
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rangeSamplingRate = masterTrack.frames[0].swaths[0].rangeSamplingRate
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radarWavelengthLower = SPEED_OF_LIGHT/(SPEED_OF_LIGHT / radarWavelength - rangeBandwidth / 3.0)
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radarWavelengthUpper = SPEED_OF_LIGHT/(SPEED_OF_LIGHT / radarWavelength + rangeBandwidth / 3.0)
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subbandRadarWavelength = [radarWavelengthLower, radarWavelengthUpper]
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subbandBandWidth = [rangeBandwidth / 3.0 / rangeSamplingRate, rangeBandwidth / 3.0 / rangeSamplingRate]
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subbandFrequencyCenter = [-rangeBandwidth / 3.0 / rangeSamplingRate, rangeBandwidth / 3.0 / rangeSamplingRate]
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subbandPrefix = ['lower', 'upper']
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'''
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ionDir = {
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ionDir['swathMosaic'] : 'mosaic',
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ionDir['insar'] : 'insar',
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ionDir['ion'] : 'ion',
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ionDir['subband'] : ['lower', 'upper'],
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ionDir['ionCal'] : 'ion_cal'
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}
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'''
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#define upper level directory names
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ionDir = defineIonDir()
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self._insar.subbandRadarWavelength = subbandRadarWavelength
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############################################################
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# STEP 1. create directories
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############################################################
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#create and enter 'ion' directory
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#after finishing each step, we are in this directory
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if not os.path.exists(ionDir['ion']):
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os.makedirs(ionDir['ion'])
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os.chdir(ionDir['ion'])
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#create insar processing directories
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for k in range(2):
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subbandDir = ionDir['subband'][k]
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for i, frameNumber in enumerate(self._insar.masterFrames):
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frameDir = 'f{}_{}'.format(i+1, frameNumber)
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for j, swathNumber in enumerate(range(self._insar.startingSwath, self._insar.endingSwath + 1)):
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swathDir = 's{}'.format(swathNumber)
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fullDir = os.path.join(subbandDir, frameDir, swathDir)
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if not os.path.exists(fullDir):
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os.makedirs(fullDir)
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#create ionospheric phase directory
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if not os.path.exists(ionDir['ionCal']):
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os.makedirs(ionDir['ionCal'])
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############################################################
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# STEP 2. create subband interferograms
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############################################################
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import numpy as np
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import stdproc
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from iscesys.StdOEL.StdOELPy import create_writer
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from isceobj.Alos2Proc.Alos2ProcPublic import readOffset
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from contrib.alos2proc.alos2proc import rg_filter
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for i, frameNumber in enumerate(self._insar.masterFrames):
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frameDir = 'f{}_{}'.format(i+1, frameNumber)
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for j, swathNumber in enumerate(range(self._insar.startingSwath, self._insar.endingSwath + 1)):
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swathDir = 's{}'.format(swathNumber)
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#filter master and slave images
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for slcx in [self._insar.masterSlc, self._insar.slaveSlc]:
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slc = os.path.join('../', frameDir, swathDir, slcx)
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slcLower = os.path.join(ionDir['subband'][0], frameDir, swathDir, slcx)
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slcUpper = os.path.join(ionDir['subband'][1], frameDir, swathDir, slcx)
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rg_filter(slc, 2,
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[slcLower, slcUpper],
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subbandBandWidth,
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subbandFrequencyCenter,
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257, 2048, 0.1, 0, 0.0)
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#resample
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for k in range(2):
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os.chdir(os.path.join(ionDir['subband'][k], frameDir, swathDir))
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#recreate xml file to remove the file path
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#can also use fixImageXml.py?
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for x in [self._insar.masterSlc, self._insar.slaveSlc]:
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img = isceobj.createSlcImage()
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img.load(x + '.xml')
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img.setFilename(x)
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img.extraFilename = x + '.vrt'
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img.setAccessMode('READ')
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img.renderHdr()
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#############################################
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#1. form interferogram
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#############################################
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masterSwath = masterTrack.frames[i].swaths[j]
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slaveSwath = slaveTrack.frames[i].swaths[j]
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refinedOffsets = readOffset(os.path.join('../../../../', frameDir, swathDir, 'cull.off'))
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intWidth = int(masterSwath.numberOfSamples / self._insar.numberRangeLooks1)
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intLength = int(masterSwath.numberOfLines / self._insar.numberAzimuthLooks1)
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dopplerVsPixel = [i/slaveSwath.prf for i in slaveSwath.dopplerVsPixel]
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#master slc
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mSLC = isceobj.createSlcImage()
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mSLC.load(self._insar.masterSlc+'.xml')
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mSLC.setAccessMode('read')
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mSLC.createImage()
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#slave slc
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sSLC = isceobj.createSlcImage()
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sSLC.load(self._insar.slaveSlc+'.xml')
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sSLC.setAccessMode('read')
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sSLC.createImage()
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#interferogram
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interf = isceobj.createIntImage()
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interf.setFilename(self._insar.interferogram)
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interf.setWidth(intWidth)
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interf.setAccessMode('write')
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interf.createImage()
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#amplitdue
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amplitude = isceobj.createAmpImage()
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amplitude.setFilename(self._insar.amplitude)
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amplitude.setWidth(intWidth)
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amplitude.setAccessMode('write')
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amplitude.createImage()
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#create a writer for resamp
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stdWriter = create_writer("log", "", True, filename="resamp.log")
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stdWriter.setFileTag("resamp", "log")
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stdWriter.setFileTag("resamp", "err")
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stdWriter.setFileTag("resamp", "out")
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#set up resampling program now
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#The setting has been compared with resamp_roi's setting in ROI_pac item by item.
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#The two kinds of setting are exactly the same. The number of setting items are
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#exactly the same
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objResamp = stdproc.createResamp()
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objResamp.wireInputPort(name='offsets', object=refinedOffsets)
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objResamp.stdWriter = stdWriter
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objResamp.setNumberFitCoefficients(6)
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objResamp.setNumberRangeBin1(masterSwath.numberOfSamples)
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objResamp.setNumberRangeBin2(slaveSwath.numberOfSamples)
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objResamp.setStartLine(1)
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objResamp.setNumberLines(masterSwath.numberOfLines)
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objResamp.setFirstLineOffset(1)
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objResamp.setDopplerCentroidCoefficients(dopplerVsPixel)
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objResamp.setRadarWavelength(subbandRadarWavelength[k])
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objResamp.setSlantRangePixelSpacing(slaveSwath.rangePixelSize)
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objResamp.setNumberRangeLooks(self._insar.numberRangeLooks1)
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objResamp.setNumberAzimuthLooks(self._insar.numberAzimuthLooks1)
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objResamp.setFlattenWithOffsetFitFlag(0)
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objResamp.resamp(mSLC, sSLC, interf, amplitude)
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#finialize images
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mSLC.finalizeImage()
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sSLC.finalizeImage()
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interf.finalizeImage()
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amplitude.finalizeImage()
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stdWriter.finalize()
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#############################################
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#2. trim amplitude
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#############################################
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#using memmap instead, which should be faster, since we only have a few pixels to change
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amp=np.memmap(self._insar.amplitude, dtype='complex64', mode='r+', shape=(intLength, intWidth))
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index = np.nonzero( (np.real(amp)==0) + (np.imag(amp)==0) )
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amp[index]=0
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#Deletion flushes memory changes to disk before removing the object:
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del amp
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#############################################
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#3. delete subband slcs
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#############################################
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os.remove(self._insar.masterSlc)
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os.remove(self._insar.masterSlc + '.vrt')
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os.remove(self._insar.masterSlc + '.xml')
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os.remove(self._insar.slaveSlc)
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os.remove(self._insar.slaveSlc + '.vrt')
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os.remove(self._insar.slaveSlc + '.xml')
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os.chdir('../../../')
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############################################################
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# STEP 3. mosaic swaths
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############################################################
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from isceobj.Alos2Proc.runSwathMosaic import swathMosaic
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from isceobj.Alos2Proc.Alos2ProcPublic import create_xml
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for k in range(2):
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os.chdir(ionDir['subband'][k])
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for i, frameNumber in enumerate(self._insar.masterFrames):
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frameDir = 'f{}_{}'.format(i+1, frameNumber)
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os.chdir(frameDir)
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mosaicDir = ionDir['swathMosaic']
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if not os.path.exists(mosaicDir):
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os.makedirs(mosaicDir)
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os.chdir(mosaicDir)
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if not (
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((self._insar.modeCombination == 21) or \
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(self._insar.modeCombination == 22) or \
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(self._insar.modeCombination == 31) or \
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(self._insar.modeCombination == 32))
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and
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(self._insar.endingSwath-self._insar.startingSwath+1 > 1)
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):
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import shutil
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swathDir = 's{}'.format(masterTrack.frames[i].swaths[0].swathNumber)
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# if not os.path.isfile(self._insar.interferogram):
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# os.symlink(os.path.join('../', swathDir, self._insar.interferogram), self._insar.interferogram)
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# shutil.copy2(os.path.join('../', swathDir, self._insar.interferogram+'.vrt'), self._insar.interferogram+'.vrt')
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# shutil.copy2(os.path.join('../', swathDir, self._insar.interferogram+'.xml'), self._insar.interferogram+'.xml')
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# if not os.path.isfile(self._insar.amplitude):
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# os.symlink(os.path.join('../', swathDir, self._insar.amplitude), self._insar.amplitude)
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# shutil.copy2(os.path.join('../', swathDir, self._insar.amplitude+'.vrt'), self._insar.amplitude+'.vrt')
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# shutil.copy2(os.path.join('../', swathDir, self._insar.amplitude+'.xml'), self._insar.amplitude+'.xml')
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os.rename(os.path.join('../', swathDir, self._insar.interferogram), self._insar.interferogram)
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os.rename(os.path.join('../', swathDir, self._insar.interferogram+'.vrt'), self._insar.interferogram+'.vrt')
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os.rename(os.path.join('../', swathDir, self._insar.interferogram+'.xml'), self._insar.interferogram+'.xml')
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os.rename(os.path.join('../', swathDir, self._insar.amplitude), self._insar.amplitude)
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os.rename(os.path.join('../', swathDir, self._insar.amplitude+'.vrt'), self._insar.amplitude+'.vrt')
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os.rename(os.path.join('../', swathDir, self._insar.amplitude+'.xml'), self._insar.amplitude+'.xml')
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#no need to update frame parameters here
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os.chdir('../')
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#no need to save parameter file here
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os.chdir('../')
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continue
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#choose offsets
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numberOfFrames = len(masterTrack.frames)
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numberOfSwaths = len(masterTrack.frames[i].swaths)
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if self.swathOffsetMatching:
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#no need to do this as the API support 2-d list
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#rangeOffsets = (np.array(self._insar.swathRangeOffsetMatchingMaster)).reshape(numberOfFrames, numberOfSwaths)
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#azimuthOffsets = (np.array(self._insar.swathAzimuthOffsetMatchingMaster)).reshape(numberOfFrames, numberOfSwaths)
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rangeOffsets = self._insar.swathRangeOffsetMatchingMaster
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azimuthOffsets = self._insar.swathAzimuthOffsetMatchingMaster
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else:
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#rangeOffsets = (np.array(self._insar.swathRangeOffsetGeometricalMaster)).reshape(numberOfFrames, numberOfSwaths)
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#azimuthOffsets = (np.array(self._insar.swathAzimuthOffsetGeometricalMaster)).reshape(numberOfFrames, numberOfSwaths)
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rangeOffsets = self._insar.swathRangeOffsetGeometricalMaster
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azimuthOffsets = self._insar.swathAzimuthOffsetGeometricalMaster
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rangeOffsets = rangeOffsets[i]
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azimuthOffsets = azimuthOffsets[i]
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#list of input files
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inputInterferograms = []
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inputAmplitudes = []
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for j, swathNumber in enumerate(range(self._insar.startingSwath, self._insar.endingSwath + 1)):
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swathDir = 's{}'.format(swathNumber)
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inputInterferograms.append(os.path.join('../', swathDir, self._insar.interferogram))
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inputAmplitudes.append(os.path.join('../', swathDir, self._insar.amplitude))
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#note that frame parameters are updated after mosaicking, here no need to update parameters
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#mosaic amplitudes
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swathMosaic(masterTrack.frames[i], inputAmplitudes, self._insar.amplitude,
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rangeOffsets, azimuthOffsets, self._insar.numberRangeLooks1, self._insar.numberAzimuthLooks1, resamplingMethod=0)
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#mosaic interferograms
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swathMosaic(masterTrack.frames[i], inputInterferograms, self._insar.interferogram,
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rangeOffsets, azimuthOffsets, self._insar.numberRangeLooks1, self._insar.numberAzimuthLooks1, updateFrame=False, phaseCompensation=True, resamplingMethod=1)
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create_xml(self._insar.amplitude, masterTrack.frames[i].numberOfSamples, masterTrack.frames[i].numberOfLines, 'amp')
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create_xml(self._insar.interferogram, masterTrack.frames[i].numberOfSamples, masterTrack.frames[i].numberOfLines, 'int')
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#update slave frame parameters here, here no need to update parameters
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os.chdir('../')
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#save parameter file, here no need to save parameter file
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os.chdir('../')
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os.chdir('../')
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############################################################
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# STEP 4. mosaic frames
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############################################################
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from isceobj.Alos2Proc.runFrameMosaic import frameMosaic
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from isceobj.Alos2Proc.Alos2ProcPublic import create_xml
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for k in range(2):
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os.chdir(ionDir['subband'][k])
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mosaicDir = ionDir['insar']
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if not os.path.exists(mosaicDir):
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os.makedirs(mosaicDir)
|
||
|
|
os.chdir(mosaicDir)
|
||
|
|
|
||
|
|
numberOfFrames = len(masterTrack.frames)
|
||
|
|
if numberOfFrames == 1:
|
||
|
|
import shutil
|
||
|
|
frameDir = os.path.join('f1_{}/mosaic'.format(self._insar.masterFrames[0]))
|
||
|
|
# if not os.path.isfile(self._insar.interferogram):
|
||
|
|
# os.symlink(os.path.join('../', frameDir, self._insar.interferogram), self._insar.interferogram)
|
||
|
|
# #shutil.copy2() can overwrite
|
||
|
|
# shutil.copy2(os.path.join('../', frameDir, self._insar.interferogram+'.vrt'), self._insar.interferogram+'.vrt')
|
||
|
|
# shutil.copy2(os.path.join('../', frameDir, self._insar.interferogram+'.xml'), self._insar.interferogram+'.xml')
|
||
|
|
# if not os.path.isfile(self._insar.amplitude):
|
||
|
|
# os.symlink(os.path.join('../', frameDir, self._insar.amplitude), self._insar.amplitude)
|
||
|
|
# shutil.copy2(os.path.join('../', frameDir, self._insar.amplitude+'.vrt'), self._insar.amplitude+'.vrt')
|
||
|
|
# shutil.copy2(os.path.join('../', frameDir, self._insar.amplitude+'.xml'), self._insar.amplitude+'.xml')
|
||
|
|
|
||
|
|
os.rename(os.path.join('../', frameDir, self._insar.interferogram), self._insar.interferogram)
|
||
|
|
os.rename(os.path.join('../', frameDir, self._insar.interferogram+'.vrt'), self._insar.interferogram+'.vrt')
|
||
|
|
os.rename(os.path.join('../', frameDir, self._insar.interferogram+'.xml'), self._insar.interferogram+'.xml')
|
||
|
|
os.rename(os.path.join('../', frameDir, self._insar.amplitude), self._insar.amplitude)
|
||
|
|
os.rename(os.path.join('../', frameDir, self._insar.amplitude+'.vrt'), self._insar.amplitude+'.vrt')
|
||
|
|
os.rename(os.path.join('../', frameDir, self._insar.amplitude+'.xml'), self._insar.amplitude+'.xml')
|
||
|
|
|
||
|
|
#update track parameters, no need to update track parameters here
|
||
|
|
|
||
|
|
else:
|
||
|
|
#choose offsets
|
||
|
|
if self.frameOffsetMatching:
|
||
|
|
rangeOffsets = self._insar.frameRangeOffsetMatchingMaster
|
||
|
|
azimuthOffsets = self._insar.frameAzimuthOffsetMatchingMaster
|
||
|
|
else:
|
||
|
|
rangeOffsets = self._insar.frameRangeOffsetGeometricalMaster
|
||
|
|
azimuthOffsets = self._insar.frameAzimuthOffsetGeometricalMaster
|
||
|
|
|
||
|
|
#list of input files
|
||
|
|
inputInterferograms = []
|
||
|
|
inputAmplitudes = []
|
||
|
|
for i, frameNumber in enumerate(self._insar.masterFrames):
|
||
|
|
frameDir = 'f{}_{}'.format(i+1, frameNumber)
|
||
|
|
inputInterferograms.append(os.path.join('../', frameDir, 'mosaic', self._insar.interferogram))
|
||
|
|
inputAmplitudes.append(os.path.join('../', frameDir, 'mosaic', self._insar.amplitude))
|
||
|
|
|
||
|
|
#note that track parameters are updated after mosaicking
|
||
|
|
#mosaic amplitudes
|
||
|
|
frameMosaic(masterTrack, inputAmplitudes, self._insar.amplitude,
|
||
|
|
rangeOffsets, azimuthOffsets, self._insar.numberRangeLooks1, self._insar.numberAzimuthLooks1,
|
||
|
|
updateTrack=False, phaseCompensation=False, resamplingMethod=0)
|
||
|
|
#mosaic interferograms
|
||
|
|
frameMosaic(masterTrack, inputInterferograms, self._insar.interferogram,
|
||
|
|
rangeOffsets, azimuthOffsets, self._insar.numberRangeLooks1, self._insar.numberAzimuthLooks1,
|
||
|
|
updateTrack=False, phaseCompensation=True, resamplingMethod=1)
|
||
|
|
|
||
|
|
create_xml(self._insar.amplitude, masterTrack.numberOfSamples, masterTrack.numberOfLines, 'amp')
|
||
|
|
create_xml(self._insar.interferogram, masterTrack.numberOfSamples, masterTrack.numberOfLines, 'int')
|
||
|
|
|
||
|
|
#update slave parameters here, no need to update slave parameters here
|
||
|
|
|
||
|
|
os.chdir('../')
|
||
|
|
#save parameter file, no need to save parameter file here
|
||
|
|
os.chdir('../')
|
||
|
|
|
||
|
|
|
||
|
|
############################################################
|
||
|
|
# STEP 5. clear frame processing files
|
||
|
|
############################################################
|
||
|
|
import shutil
|
||
|
|
from isceobj.Alos2Proc.Alos2ProcPublic import runCmd
|
||
|
|
|
||
|
|
for k in range(2):
|
||
|
|
os.chdir(ionDir['subband'][k])
|
||
|
|
for i, frameNumber in enumerate(self._insar.masterFrames):
|
||
|
|
frameDir = 'f{}_{}'.format(i+1, frameNumber)
|
||
|
|
shutil.rmtree(frameDir)
|
||
|
|
#cmd = 'rm -rf {}'.format(frameDir)
|
||
|
|
#runCmd(cmd)
|
||
|
|
os.chdir('../')
|
||
|
|
|
||
|
|
|
||
|
|
############################################################
|
||
|
|
# STEP 6. create differential interferograms
|
||
|
|
############################################################
|
||
|
|
import numpy as np
|
||
|
|
from isceobj.Alos2Proc.Alos2ProcPublic import runCmd
|
||
|
|
|
||
|
|
for k in range(2):
|
||
|
|
os.chdir(ionDir['subband'][k])
|
||
|
|
|
||
|
|
insarDir = ionDir['insar']
|
||
|
|
if not os.path.exists(insarDir):
|
||
|
|
os.makedirs(insarDir)
|
||
|
|
os.chdir(insarDir)
|
||
|
|
|
||
|
|
rangePixelSize = self._insar.numberRangeLooks1 * masterTrack.rangePixelSize
|
||
|
|
radarWavelength = subbandRadarWavelength[k]
|
||
|
|
rectRangeOffset = os.path.join('../../../', insarDir, self._insar.rectRangeOffset)
|
||
|
|
|
||
|
|
cmd = "imageMath.py -e='a*exp(-1.0*J*b*4.0*{}*{}/{}) * (b!=0)' --a={} --b={} -o {} -t cfloat".format(np.pi, rangePixelSize, radarWavelength, self._insar.interferogram, rectRangeOffset, self._insar.differentialInterferogram)
|
||
|
|
runCmd(cmd)
|
||
|
|
|
||
|
|
os.chdir('../../')
|
||
|
|
|
||
|
|
|
||
|
|
os.chdir('../')
|
||
|
|
catalog.printToLog(logger, "runIonSubband")
|
||
|
|
self._insar.procDoc.addAllFromCatalog(catalog)
|
||
|
|
|
||
|
|
|
||
|
|
def defineIonDir():
|
||
|
|
'''
|
||
|
|
define directory names for ionospheric correction
|
||
|
|
'''
|
||
|
|
|
||
|
|
ionDir = {
|
||
|
|
#swath mosaicking directory
|
||
|
|
'swathMosaic' : 'mosaic',
|
||
|
|
#final insar processing directory
|
||
|
|
'insar' : 'insar',
|
||
|
|
#ionospheric correction directory
|
||
|
|
'ion' : 'ion',
|
||
|
|
#subband directory
|
||
|
|
'subband' : ['lower', 'upper'],
|
||
|
|
#final ionospheric phase calculation directory
|
||
|
|
'ionCal' : 'ion_cal'
|
||
|
|
}
|
||
|
|
|
||
|
|
return ionDir
|
||
|
|
|
||
|
|
|
||
|
|
def defineIonFilenames():
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|