def DatasetSummaryRecordType():
'''
Data Set Summary Record.
http://www.ga.gov.au/__data/assets/pdf_file/0019/11719/GA10287.pdf Pg: 3-26.
'''
from isce3.parsers.CEOS.BasicTypes import (BlankType, IntegerType,
FloatType, MultiType)
from isce3.parsers.CEOS.DatasetSummaryRecordType import DatasetSummaryRecordCommonType
#Common part of CEOS header
inlist = DatasetSummaryRecordCommonType().mapping
#ALOS specific trailer
inlist += [('CalibrationDataIndicator', IntegerType(4)),
('StartLineNumberCalibrationUpper', IntegerType(8)),
('StopLineNumberCalibrationUpper', IntegerType(8)),
('StartLineNumberCalibrationBottom', IntegerType(8)),
('StopLineNumberCalibrationBottom', IntegerType(8)),
('PRFSwitchingIndicator', IntegerType(4)),
('LineLocatorOfPRFSwitching', IntegerType(8)),
('blanks14', BlankType(16)),
('YawSteeringModeFlag', IntegerType(4)),
('ParameterTableNumber', IntegerType(4)),
('NominalOffNadirAngle', FloatType(16)),
('AntennaBeamNumber', IntegerType(4)),
('blanks15', BlankType(28)), ('blanks16', BlankType(120)),
('NumberOfAnnotationPoints', IntegerType(8)),
('blanks17', BlankType(2082))]
return MultiType(inlist)
def SignalDataRecordType(pixels=None, bytesperpixel=None):
'''
SAR Signal Data Record.
http://www.ga.gov.au/__data/assets/pdf_file/0019/11719/GA10287.pdf Pg:3-51.
'''
from isce3.parsers.CEOS.BasicTypes import (BlankType, StringType,
IntegerType, BinaryType,
MultiType)
from isce3.parsers.CEOS.CEOSHeaderType import CEOSHeaderType
return MultiType(CEOSHeaderType().mapping + [
('SARImageDataLineNumber',
BinaryType('>i4')), ('SARImageDataRecordIndex', BinaryType('>i4')),
('ActualCountOfLeftFillPixels',
BinaryType('>i4')), ('ActualCountOfDataPixels', BinaryType('>i4')),
('ActualCountOfRightFillPixels',
BinaryType('>i4')), ('SensorParametersUpdateFlag', BinaryType('>i4')),
('SensorAcquisitionYear',
BinaryType('>i4')), ('SensorAcquisitionDayOfYear', BinaryType('>i4')),
('SensorAcquisitionmsecsOfDay',
BinaryType('>i4')), ('SARChannelIndicator', BinaryType('>i2')),
('SARChannelCode',
BinaryType('>i2')), ('TransmitPolarization', BinaryType('>i2')),
('ReceivePolarization',
BinaryType('>i2')), ('PRFInmHz', BinaryType('>i4')),
('ScanIDForScanSAR',
BinaryType('>i4')), ('OnboardRangeCompressedFlag', BinaryType('>i2')),
('PulseTypeDesignator',
BinaryType('>i2')), ('ChirpLengthInns', BinaryType('>i4')),
('ChirpConstantCoefficientInHz', BinaryType('>i4')),
('ChirpLinearCoefficientInHzperusec',
BinaryType('>i4')), ('ChirpQuadraticCoefficient', BinaryType('>i4')),
('SensorAcquisitionusecsOfDay',
BinaryType('>Q')), ('ReceiverGainIndB', BinaryType('>i4')),
('NoughtLineFlag', BinaryType('>i4')),
('ElectronicAntennaElevationAngleinudegrees', BinaryType('>i4')),
('MechanicalAntennaElevationAngleinudegrees', BinaryType('>i4')),
('ElectronicAntennaSquintAngleinudegrees', BinaryType('>i4')),
('MechanicalAntennaSquintAngleinudegrees',
BinaryType('>i4')), ('SlantRangeToFirstSampleInm', BinaryType('>i4')),
('DataRecordWindowPositionInns',
BinaryType('>i4')), ('blanks2', BlankType(4)),
('PlatformPositionParametersUpdateFlag',
BinaryType('>i4')), ('PlatformLatitudeInudegrees', BinaryType('>i4')),
('PlatformLongitudeInudegrees',
BinaryType('>i4')), ('PlatformAltitudeInm', BinaryType('>i4')),
('PlatformGroundSpeedIncmpersec', BinaryType('>i4')),
('PlatformVelocityIncmpersec', BinaryType('>i4', count=3)),
('PlatformAcceleration', BinaryType('>i4', count=3)),
('PlatformTrackAngleinudegrees', BinaryType('>i4')),
('PlatformTrackAngle2inudegrees', BinaryType('>i4')),
('PlatformPitchAngleinudegrees', BinaryType('>i4')),
('PlatformRollAngleinudegrees',
BinaryType('>i4')), ('PlatformYawAngleinudegrees', BinaryType('>i4')),
('blanks3', BlankType(92)), ('PALSARFrameCounter', BinaryType('>i4')),
('PALSARAuxData', BlankType(256)),
('SARRawSignalData',
BinaryType('>f{}'.format(bytesperpixel), count=pixels))
])
def RadiometricRecordType():
'''
Radiometric Record.
https://www.eorc.jaxa.jp/ALOS-2/en/doc/fdata/PALSAR-2_xx_Format_CEOS_E_f.pdf
'''
from isce3.parsers.CEOS.BasicTypes import (BlankType, BinaryType,
StringType, IntegerType,
FloatType, MultiType)
from isce3.parsers.CEOS.CEOSHeaderType import CEOSHeaderType
#Common part of CEOS header (modified)
inlist = CEOSHeaderType().mapping
inlist += [('SARChannelIndicator', BinaryType('>i4')),
('NumberOfDataSets', BinaryType('>i4')),
('CalibrationFactor', FloatType(16)),
('RealPartOfDT1,1', FloatType(16)),
('ImaginaryPartOfDT1,1', FloatType(16)),
('RealPartOfDT1,2', FloatType(16)),
('ImaginaryPartOfDT1,2', FloatType(16)),
('RealPartOfDT2,1', FloatType(16)),
('ImaginaryPartOfDT2,1', FloatType(16)),
('RealPartOfDT2,2', FloatType(16)),
('ImaginaryPartOfDT2,2', FloatType(16)),
('RealPartOfDR1,1', FloatType(16)),
('ImaginaryPartOfDR1,1', FloatType(16)),
('RealPartOfDR1,2', FloatType(16)),
('ImaginaryPartOfDR1,2', FloatType(16)),
('RealPartOfDR2,1', FloatType(16)),
('ImaginaryPartOfDR2,1', FloatType(16)),
('RealPartOfDR2,2', FloatType(16)),
('ImaginaryPartOfDR2,2', FloatType(16)),
('SkipBytes', BlankType(9577))]
return MultiType(inlist)
def CalibrationDataRecordTrailerType():
'''
This is ALOS-1 L0 data specific.
'''
from isce3.parsers.CEOS.BasicTypes import BlankType
return BlankType(836)
def AttitudeDataRecordTrailerType(inlen):
'''
Attitude Data Record Trailer.
https://www.eorc.jaxa.jp/ALOS-2/en/doc/fdata/PALSAR-2_xx_Format_CEOS_E_f.pdf
'''
from isce3.parsers.CEOS.BasicTypes import BlankType
return BlankType(inlen)
def AttitudeDataRecordTrailerType(inlen):
'''
Attitude Data Record Trailer.
http://www.ga.gov.au/__data/assets/pdf_file/0019/11719/GA10287.pdf Pg: 3-42.
'''
from isce3.parsers.CEOS.BasicTypes import BlankType
return BlankType(inlen)
def CalibrationChirpReplicaType(samples, totalLength=6146):
'''
Calibration Data Record.
http://www.ga.gov.au/__data/assets/pdf_file/0019/11719/GA10287.pdf Pg: 3-45.
'''
from isce3.parsers.CEOS.BasicTypes import (BinaryType, BlankType,
IntegerType, MultiType)
return MultiType([('ReceivePolarization', IntegerType(1)),
('ChirpReplica', BinaryType('>i2', count=2 * samples)),
('blanks', BlankType(totalLength - 4 * samples - 1))])