185 lines
6.9 KiB
Python
185 lines
6.9 KiB
Python
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# Copyright 2012 California Institute of Technology. ALL RIGHTS RESERVED.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# United States Government Sponsorship acknowledged. This software is subject to
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# U.S. export control laws and regulations and has been classified as 'EAR99 NLR'
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# (No [Export] License Required except when exporting to an embargoed country,
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# end user, or in support of a prohibited end use). By downloading this software,
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# the user agrees to comply with all applicable U.S. export laws and regulations.
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# The user has the responsibility to obtain export licenses, or other export
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# authority as may be required before exporting this software to any 'EAR99'
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# embargoed foreign country or citizen of those countries.
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#
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# Author: Brett George
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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import logging
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import stdproc
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import isceobj
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import pickle
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from isceobj.Util.decorators import use_api
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logger = logging.getLogger('isce.insar.runFormSLC')
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#Run FormSLC for master
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def master(self, deltaf=None):
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from isceobj.Catalog import recordInputsAndOutputs
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from iscesys.ImageUtil.ImageUtil import ImageUtil as IU
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v,h = self.insar.vh()
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objRaw = self.insar.rawMasterIQImage.clone()
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objRaw.accessMode = 'read'
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objFormSlc = stdproc.createFormSLC(name='insarapp_formslc_master')
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objFormSlc.setBodyFixedVelocity(v)
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objFormSlc.setSpacecraftHeight(h)
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objFormSlc.setAzimuthPatchSize(self.patchSize)
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objFormSlc.setNumberValidPulses(self.goodLines)
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objFormSlc.setNumberPatches(self.numPatches)
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objFormSlc.setLookSide(self.insar._lookSide)
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objFormSlc.setNumberAzimuthLooks(self.insar.numberAzimuthLooks)
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logger.info("Focusing Master image")
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objFormSlc.stdWriter = self.stdWriter
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if (deltaf is not None) and (objFormSlc.azimuthResolution is None):
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ins = self.insar.masterFrame.getInstrument()
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prf = ins.getPulseRepetitionFrequency()
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res = ins.getPlatform().getAntennaLength() / 2.0
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azbw = min(v/res, prf)
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res = v/azbw
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factor = 1.0 - (abs(deltaf)/azbw)
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logger.info('MASTER AZIMUTH BANDWIDTH FACTOR = %f'%(factor))
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azres = res / factor
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#jng This is a temporary solution seems it looks that same banding problem
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#can be resolved by doubling the azres. The default azResFactor is still one.
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objFormSlc.setAzimuthResolution(azres*self.insar.azResFactor)
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####newInputs
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objSlc = objFormSlc(rawImage=objRaw,
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orbit=self.insar.masterOrbit,
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frame=self.insar.masterFrame,
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planet=self.insar.masterFrame.instrument.platform.planet,
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doppler=self.insar.dopplerCentroid,
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peg=self.insar.peg)
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imageSlc = isceobj.createSlcImage()
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IU.copyAttributes(objSlc, imageSlc)
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imageSlc.setAccessMode('read')
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objSlc.finalizeImage()
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objRaw.finalizeImage()
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recordInputsAndOutputs(self.insar.procDoc, objFormSlc,
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"runFormSLC.master", logger, "runFormSLC.master")
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logger.info('New Width = %d'%(imageSlc.getWidth()))
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self.insar.masterSlcImage = imageSlc
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self.insar.formSLC1 = objFormSlc
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return objFormSlc.numberPatches
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#Run FormSLC on slave
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def slave(self, deltaf=None):
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from isceobj.Catalog import recordInputsAndOutputs
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from iscesys.ImageUtil.ImageUtil import ImageUtil as IU
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v,h = self.insar.vh()
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objRaw = self.insar.rawSlaveIQImage.clone()
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objRaw.accessMode = 'read'
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objFormSlc = stdproc.createFormSLC(name='insarapp_formslc_slave')
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objFormSlc.setBodyFixedVelocity(v)
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objFormSlc.setSpacecraftHeight(h)
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objFormSlc.setAzimuthPatchSize(self.patchSize)
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objFormSlc.setNumberValidPulses(self.goodLines)
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objFormSlc.setNumberPatches(self.numPatches)
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objFormSlc.setNumberAzimuthLooks(self.insar.numberAzimuthLooks)
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objFormSlc.setLookSide(self.insar._lookSide)
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logger.info("Focusing Master image")
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objFormSlc.stdWriter = self.stdWriter
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if (deltaf is not None) and (objFormSlc.azimuthResolution is None):
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ins = self.insar.slaveFrame.getInstrument()
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prf = ins.getPulseRepetitionFrequency()
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res = ins.getPlatform().getAntennaLength()/2.0
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azbw = min(v / res, prf)
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res = v / azbw
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factor = 1.0 - (abs(deltaf) / azbw)
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logger.info('SLAVE AZIMUTH BANDWIDTH FACTOR = %f'%(factor))
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azres = res/factor
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objFormSlc.setAzimuthResolution(azres)
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objSlc = objFormSlc(rawImage=objRaw,
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orbit=self.insar.slaveOrbit,
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frame=self.insar.slaveFrame,
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planet=self.insar.slaveFrame.instrument.platform.planet,
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doppler=self.insar.dopplerCentroid,
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peg=self.insar.peg)
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imageSlc = isceobj.createSlcImage()
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IU.copyAttributes(objSlc, imageSlc)
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imageSlc.setAccessMode('read')
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objSlc.finalizeImage()
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objRaw.finalizeImage()
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recordInputsAndOutputs(self.insar.procDoc, objFormSlc,
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"runFormSLC.slave", logger, "runFormSLC.slave")
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logger.info('New Width = %d'%(imageSlc.getWidth()))
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self.insar.slaveSlcImage = imageSlc
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self.insar.formSLC2 = objFormSlc
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return objFormSlc.numberPatches
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@use_api
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def runFormSLC(self):
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mDoppler = self.insar.masterDoppler.getDopplerCoefficients(inHz=True)
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sDoppler = self.insar.slaveDoppler.getDopplerCoefficients(inHz=True)
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deltaf = abs(mDoppler[0] - sDoppler[0])
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n_master = master(self, deltaf=deltaf)
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n_slave = slave(self, deltaf=deltaf)
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self.insar.setNumberPatches(min(n_master, n_slave))
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self.is_mocomp = int(
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(self.insar.formSLC1.azimuthPatchSize -
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self.insar.formSLC1.numberValidPulses)/2
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)
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self.insar.is_mocomp = self.is_mocomp
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self.insar.patchSize = self.insar.formSLC1.azimuthPatchSize
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self.insar.numberValidPulses = self.insar.formSLC1.numberValidPulses
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logger.info('Number of Valid Pulses = %d'%(self.insar.numberValidPulses))
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return None
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###PSA - for testing
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def wgs84_to_sch(orbit, peg, pegHavg, planet):
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'''
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Convert WGS84 orbits to SCH orbits and return it.
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'''
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import stdproc
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from iscesys.StdOEL.StdOELPy import create_writer
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import copy
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stdWriter = create_writer("log","",True,filename='orb.log')
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orbSch = stdproc.createOrbit2sch(averageHeight=pegHavg)
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orbSch.setStdWriter(stdWriter)
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orbSch(planet=planet, orbit=orbit, peg=peg)
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schOrigOrbit = copy.copy(orbSch.orbit)
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return schOrigOrbit
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