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fix TerraSAR-X parameter bugs 

fixed bugs in getting range bandwidth, chirp slope, pulse duration and range sampling frequency
LT1AB
CunrenLiang 2020-08-03 14:36:33 -07:00 committed by CunrenLiang
parent 0fac7ff930
commit 3aa234c515
1 changed files with 16 additions and 1 deletions
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17
components/isceobj/Sensor/TerraSARX.py
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@ -171,8 +171,23 @@ class TerraSARX(Sensor):
instrument.setIncidenceAngle(incidenceAngle) instrument.setIncidenceAngle(incidenceAngle)
instrument.setPulseRepetitionFrequency(prf) instrument.setPulseRepetitionFrequency(prf)
instrument.setRangePixelSize(rangePixelSize) instrument.setRangePixelSize(rangePixelSize)
#Cunren Liang, 2015
#the chirp bandwidth extracted before is definetely wrong
#I re-extract it here.
rangeSamplingFrequency = float(self.grab_from_xml('instrument/settings/RSF'))
chirpPulseBandwidth = float(self.grab_from_xml('instrument/settings/rxBandwidth'))
# this is not a correct value, TSX product does not provide pulse length
rangePulseLength = 1
#print("\n\n\n\n\n\n\n\n{0}\n\n\n\n\n\n\n\n\n".format(rangeSamplingFrequency))
#print("\n\n\n\n\n\n\n\n{0}\n\n\n\n\n\n\n\n\n".format(chirpPulseBandwidth))
#jng no sampling rate extracted before. #jng no sampling rate extracted before.
instrument.setRangeSamplingRate(1/rowSpacing) #instrument.setRangeSamplingRate(1/rowSpacing)
#the upper setting should be wrong, I change it. Cunren Liang, 2015
instrument.setRangeSamplingRate(rangeSamplingFrequency)
instrument.setPulseLength(rangePulseLength) instrument.setPulseLength(rangePulseLength)
instrument.setChirpSlope(chirpPulseBandwidth/rangePulseLength) instrument.setChirpSlope(chirpPulseBandwidth/rangePulseLength)
#instrument.setRangeBias(0) #instrument.setRangeBias(0)