86 lines
3.1 KiB
Python
Executable File
86 lines
3.1 KiB
Python
Executable File
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# Copyright 2010 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: Giangi Sacco
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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import datetime
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from isceobj.Orbit.Orbit import Orbit
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from isceobj.Scene.Frame import Frame
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from iscesys.Component.Component import Component, Port
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class Pulsetiming(Component):
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logging_name = "isce.stdproc.pulsetiming"
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def __init__(self):
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super(Pulsetiming, self).__init__()
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self.frame = None
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self.orbit = Orbit(source='Pulsetiming')
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return None
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def createPorts(self):
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framePort = Port(name='frame',method=self.addFrame)
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self._inputPorts.add(framePort)
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return None
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def getOrbit(self):
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return self.orbit
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def addFrame(self):
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frame = self.inputPorts['frame']
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if frame:
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if isinstance(frame, Frame):
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self.frame = frame
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else:
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self.logger.error(
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"Object must be of type Frame, not %s" % (frame.__class__)
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)
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raise TypeError
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pass
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return None
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# @port(Frame)
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# def addFrame(self):
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# return None
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def pulsetiming(self):
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self.activateInputPorts()
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numberOfLines = self.frame.getNumberOfLines()
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prf = self.frame.getInstrument().getPulseRepetitionFrequency()
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pri = 1.0/prf
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startTime = self.frame.getSensingStart()
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thisOrbit = self.frame.getOrbit()
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self.orbit.setReferenceFrame(thisOrbit.getReferenceFrame())
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for i in range(numberOfLines):
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dt = i*pri
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time = startTime + datetime.timedelta(seconds=dt)
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sv = thisOrbit.interpolateOrbit(time,method='hermite')
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self.orbit.addStateVector(sv)
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