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'''
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$Author: murco $
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$Id: JROData.py 173 2012-11-20 15:06:21Z murco $
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'''
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import copy
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import numpy
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import datetime
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from jroheaderIO import SystemHeader, RadarControllerHeader
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def getNumpyDtype(dataTypeCode):
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if dataTypeCode == 0:
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numpyDtype = numpy.dtype([('real','<i1'),('imag','<i1')])
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elif dataTypeCode == 1:
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numpyDtype = numpy.dtype([('real','<i2'),('imag','<i2')])
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elif dataTypeCode == 2:
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numpyDtype = numpy.dtype([('real','<i4'),('imag','<i4')])
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elif dataTypeCode == 3:
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numpyDtype = numpy.dtype([('real','<i8'),('imag','<i8')])
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elif dataTypeCode == 4:
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numpyDtype = numpy.dtype([('real','<f4'),('imag','<f4')])
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elif dataTypeCode == 5:
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numpyDtype = numpy.dtype([('real','<f8'),('imag','<f8')])
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else:
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raise ValueError, 'dataTypeCode was not defined'
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return numpyDtype
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def getDataTypeCode(numpyDtype):
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if numpyDtype == numpy.dtype([('real','<i1'),('imag','<i1')]):
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datatype = 0
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elif numpyDtype == numpy.dtype([('real','<i2'),('imag','<i2')]):
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datatype = 1
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elif numpyDtype == numpy.dtype([('real','<i4'),('imag','<i4')]):
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datatype = 2
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elif numpyDtype == numpy.dtype([('real','<i8'),('imag','<i8')]):
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datatype = 3
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elif numpyDtype == numpy.dtype([('real','<f4'),('imag','<f4')]):
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datatype = 4
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elif numpyDtype == numpy.dtype([('real','<f8'),('imag','<f8')]):
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datatype = 5
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else:
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datatype = None
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return datatype
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def hildebrand_sekhon(data, navg):
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data = data.copy()
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sortdata = numpy.sort(data,axis=None)
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lenOfData = len(sortdata)
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nums_min = lenOfData/10
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if (lenOfData/10) > 2:
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nums_min = lenOfData/10
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else:
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nums_min = 2
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sump = 0.
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sumq = 0.
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j = 0
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cont = 1
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while((cont==1)and(j<lenOfData)):
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sump += sortdata[j]
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sumq += sortdata[j]**2
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j += 1
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if j > nums_min:
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rtest = float(j)/(j-1) + 1.0/navg
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if ((sumq*j) > (rtest*sump**2)):
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j = j - 1
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sump = sump - sortdata[j]
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sumq = sumq - sortdata[j]**2
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cont = 0
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lnoise = sump /j
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stdv = numpy.sqrt((sumq - lnoise**2)/(j - 1))
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return lnoise
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class GenericData(object):
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flagNoData = True
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def __init__(self):
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raise ValueError, "This class has not been implemented"
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def copy(self, inputObj=None):
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if inputObj == None:
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return copy.deepcopy(self)
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for key in inputObj.__dict__.keys():
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self.__dict__[key] = inputObj.__dict__[key]
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def deepcopy(self):
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return copy.deepcopy(self)
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def isEmpty(self):
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return self.flagNoData
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class JROData(GenericData):
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# m_BasicHeader = BasicHeader()
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# m_ProcessingHeader = ProcessingHeader()
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systemHeaderObj = SystemHeader()
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radarControllerHeaderObj = RadarControllerHeader()
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# data = None
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type = None
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datatype = None #dtype but in string
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# dtype = None
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# nChannels = None
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# nHeights = None
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nProfiles = None
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heightList = None
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channelList = None
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flagTimeBlock = False
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useLocalTime = False
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utctime = None
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timeZone = None
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dstFlag = None
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errorCount = None
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blocksize = None
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nCode = None
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nBaud = None
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code = None
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flagDecodeData = False #asumo q la data no esta decodificada
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flagDeflipData = False #asumo q la data no esta sin flip
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flagShiftFFT = False
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# ippSeconds = None
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timeInterval = None
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nCohInt = None
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noise = None
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windowOfFilter = 1
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#Speed of ligth
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C = 3e8
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frequency = 49.92e6
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realtime = False
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beacon_heiIndexList = None
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last_block = None
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blocknow = None
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def __init__(self):
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raise ValueError, "This class has not been implemented"
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def getNoise(self):
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raise ValueError, "Not implemented"
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def getNChannels(self):
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return len(self.channelList)
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def getChannelIndexList(self):
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return range(self.nChannels)
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def getNHeights(self):
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return len(self.heightList)
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def getHeiRange(self, extrapoints=0):
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heis = self.heightList
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# deltah = self.heightList[1] - self.heightList[0]
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#
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# heis.append(self.heightList[-1])
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return heis
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def getltctime(self):
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if self.useLocalTime:
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return self.utctime - self.timeZone*60
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return self.utctime
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def getDatatime(self):
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datatimeValue = datetime.datetime.utcfromtimestamp(self.ltctime)
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return datatimeValue
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def getTimeRange(self):
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datatime = []
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datatime.append(self.ltctime)
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datatime.append(self.ltctime + self.timeInterval)
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datatime = numpy.array(datatime)
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return datatime
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def getFmax(self):
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PRF = 1./(self.ippSeconds * self.nCohInt)
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fmax = PRF/2.
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return fmax
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def getVmax(self):
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_lambda = self.C/self.frequency
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vmax = self.getFmax() * _lambda
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return vmax
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def get_ippSeconds(self):
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'''
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'''
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return self.radarControllerHeaderObj.ippSeconds
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def set_ippSeconds(self, ippSeconds):
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'''
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'''
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self.radarControllerHeaderObj.ippSeconds = ippSeconds
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return
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def get_dtype(self):
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'''
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'''
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return getNumpyDtype(self.datatype)
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def set_dtype(self, numpyDtype):
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'''
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'''
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self.datatype = getDataTypeCode(numpyDtype)
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nChannels = property(getNChannels, "I'm the 'nChannel' property.")
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channelIndexList = property(getChannelIndexList, "I'm the 'channelIndexList' property.")
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nHeights = property(getNHeights, "I'm the 'nHeights' property.")
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#noise = property(getNoise, "I'm the 'nHeights' property.")
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datatime = property(getDatatime, "I'm the 'datatime' property")
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ltctime = property(getltctime, "I'm the 'ltctime' property")
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ippSeconds = property(get_ippSeconds, set_ippSeconds)
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dtype = property(get_dtype, set_dtype)
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class Voltage(JROData):
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#data es un numpy array de 2 dmensiones (canales, alturas)
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data = None
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def __init__(self):
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'''
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Constructor
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'''
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self.radarControllerHeaderObj = RadarControllerHeader()
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self.systemHeaderObj = SystemHeader()
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self.type = "Voltage"
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self.data = None
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# self.dtype = None
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# self.nChannels = 0
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# self.nHeights = 0
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self.nProfiles = None
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self.heightList = None
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self.channelList = None
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# self.channelIndexList = None
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self.flagNoData = True
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self.flagTimeBlock = False
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self.utctime = None
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self.timeZone = None
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self.dstFlag = None
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self.errorCount = None
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self.nCohInt = None
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self.blocksize = None
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self.flagDecodeData = False #asumo q la data no esta decodificada
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self.flagDeflipData = False #asumo q la data no esta sin flip
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self.flagShiftFFT = False
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def getNoisebyHildebrand(self):
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"""
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Determino el nivel de ruido usando el metodo Hildebrand-Sekhon
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Return:
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noiselevel
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"""
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for channel in range(self.nChannels):
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daux = self.data_spc[channel,:,:]
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self.noise[channel] = hildebrand_sekhon(daux, self.nCohInt)
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return self.noise
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def getNoise(self, type = 1):
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self.noise = numpy.zeros(self.nChannels)
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if type == 1:
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noise = self.getNoisebyHildebrand()
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return 10*numpy.log10(noise)
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noise = property(getNoise, "I'm the 'nHeights' property.")
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class Spectra(JROData):
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#data es un numpy array de 2 dmensiones (canales, perfiles, alturas)
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data_spc = None
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#data es un numpy array de 2 dmensiones (canales, pares, alturas)
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data_cspc = None
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#data es un numpy array de 2 dmensiones (canales, alturas)
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data_dc = None
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nFFTPoints = None
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# nPairs = None
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pairsList = None
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nIncohInt = None
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wavelength = None #Necesario para cacular el rango de velocidad desde la frecuencia
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nCohInt = None #se requiere para determinar el valor de timeInterval
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ippFactor = None
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def __init__(self):
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'''
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Constructor
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'''
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self.radarControllerHeaderObj = RadarControllerHeader()
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self.systemHeaderObj = SystemHeader()
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self.type = "Spectra"
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# self.data = None
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# self.dtype = None
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# self.nChannels = 0
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# self.nHeights = 0
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self.nProfiles = None
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self.heightList = None
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self.channelList = None
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# self.channelIndexList = None
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self.pairsList = None
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self.flagNoData = True
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self.flagTimeBlock = False
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self.utctime = None
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self.nCohInt = None
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self.nIncohInt = None
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self.blocksize = None
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self.nFFTPoints = None
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self.wavelength = None
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self.flagDecodeData = False #asumo q la data no esta decodificada
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self.flagDeflipData = False #asumo q la data no esta sin flip
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self.flagShiftFFT = False
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self.ippFactor = 1
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#self.noise = None
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self.beacon_heiIndexList = []
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self.noise_estimation = None
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def getNoisebyHildebrand(self):
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"""
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Determino el nivel de ruido usando el metodo Hildebrand-Sekhon
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Return:
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noiselevel
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"""
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noise = numpy.zeros(self.nChannels)
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for channel in range(self.nChannels):
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daux = self.data_spc[channel,:,:]
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noise[channel] = hildebrand_sekhon(daux, self.nIncohInt)
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return noise
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def getNoise(self):
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if self.noise_estimation != None:
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return self.noise_estimation #this was estimated by getNoise Operation defined in jroproc_spectra.py
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else:
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noise = self.getNoisebyHildebrand()
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return noise
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def getFreqRange(self, extrapoints=0):
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deltafreq = self.getFmax() / (self.nFFTPoints*self.ippFactor)
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freqrange = deltafreq*(numpy.arange(self.nFFTPoints+extrapoints)-self.nFFTPoints/2.) - deltafreq/2
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return freqrange
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def getVelRange(self, extrapoints=0):
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deltav = self.getVmax() / (self.nFFTPoints*self.ippFactor)
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velrange = deltav*(numpy.arange(self.nFFTPoints+extrapoints)-self.nFFTPoints/2.) - deltav/2
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return velrange
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def getNPairs(self):
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return len(self.pairsList)
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def getPairsIndexList(self):
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return range(self.nPairs)
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def getNormFactor(self):
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pwcode = 1
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if self.flagDecodeData:
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pwcode = numpy.sum(self.code[0]**2)
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#normFactor = min(self.nFFTPoints,self.nProfiles)*self.nIncohInt*self.nCohInt*pwcode*self.windowOfFilter
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normFactor = self.nProfiles*self.nIncohInt*self.nCohInt*pwcode*self.windowOfFilter
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return normFactor
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def getFlagCspc(self):
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if self.data_cspc == None:
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return True
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return False
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def getFlagDc(self):
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if self.data_dc == None:
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return True
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return False
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nPairs = property(getNPairs, "I'm the 'nPairs' property.")
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pairsIndexList = property(getPairsIndexList, "I'm the 'pairsIndexList' property.")
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normFactor = property(getNormFactor, "I'm the 'getNormFactor' property.")
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flag_cspc = property(getFlagCspc)
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flag_dc = property(getFlagDc)
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noise = property(getNoise, "I'm the 'nHeights' property.")
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class SpectraHeis(Spectra):
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data_spc = None
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data_cspc = None
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data_dc = None
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nFFTPoints = None
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# nPairs = None
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pairsList = None
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nIncohInt = None
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def __init__(self):
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self.radarControllerHeaderObj = RadarControllerHeader()
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self.systemHeaderObj = SystemHeader()
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self.type = "SpectraHeis"
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# self.dtype = None
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# self.nChannels = 0
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# self.nHeights = 0
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self.nProfiles = None
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self.heightList = None
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self.channelList = None
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# self.channelIndexList = None
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self.flagNoData = True
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self.flagTimeBlock = False
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# self.nPairs = 0
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self.utctime = None
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self.blocksize = None
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class Fits:
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heightList = None
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channelList = None
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flagNoData = True
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flagTimeBlock = False
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useLocalTime = False
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utctime = None
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timeZone = None
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# ippSeconds = None
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timeInterval = None
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nCohInt = None
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nIncohInt = None
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noise = None
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windowOfFilter = 1
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#Speed of ligth
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C = 3e8
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frequency = 49.92e6
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realtime = False
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def __init__(self):
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self.type = "Fits"
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self.nProfiles = None
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self.heightList = None
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self.channelList = None
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# self.channelIndexList = None
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self.flagNoData = True
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self.utctime = None
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self.nCohInt = None
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self.nIncohInt = None
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self.useLocalTime = True
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# self.utctime = None
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# self.timeZone = None
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# self.ltctime = None
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# self.timeInterval = None
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# self.header = None
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# self.data_header = None
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# self.data = None
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# self.datatime = None
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# self.flagNoData = False
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# self.expName = ''
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# self.nChannels = None
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# self.nSamples = None
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# self.dataBlocksPerFile = None
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# self.comments = ''
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|
#
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def getltctime(self):
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|
|
if self.useLocalTime:
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return self.utctime - self.timeZone*60
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|
return self.utctime
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|
def getDatatime(self):
|
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|
|
datatime = datetime.datetime.utcfromtimestamp(self.ltctime)
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|
return datatime
|
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|
|
def getTimeRange(self):
|
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|
|
datatime = []
|
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|
|
datatime.append(self.ltctime)
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|
|
datatime.append(self.ltctime + self.timeInterval)
|
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|
|
datatime = numpy.array(datatime)
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|
|
return datatime
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|
|
def getHeiRange(self):
|
|
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|
|
heis = self.heightList
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|
|
return heis
|
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|
|
def isEmpty(self):
|
|
|
|
|
|
return self.flagNoData
|
|
|
|
|
|
def getNHeights(self):
|
|
|
|
|
|
return len(self.heightList)
|
|
|
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|
|
def getNChannels(self):
|
|
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|
|
|
return len(self.channelList)
|
|
|
|
|
|
def getChannelIndexList(self):
|
|
|
|
|
|
return range(self.nChannels)
|
|
|
|
|
|
def getNoise(self, type = 1):
|
|
|
|
|
|
self.noise = numpy.zeros(self.nChannels)
|
|
|
|
|
|
if type == 1:
|
|
|
noise = self.getNoisebyHildebrand()
|
|
|
|
|
|
if type == 2:
|
|
|
noise = self.getNoisebySort()
|
|
|
|
|
|
if type == 3:
|
|
|
noise = self.getNoisebyWindow()
|
|
|
|
|
|
return noise
|
|
|
|
|
|
datatime = property(getDatatime, "I'm the 'datatime' property")
|
|
|
nHeights = property(getNHeights, "I'm the 'nHeights' property.")
|
|
|
nChannels = property(getNChannels, "I'm the 'nChannel' property.")
|
|
|
channelIndexList = property(getChannelIndexList, "I'm the 'channelIndexList' property.")
|
|
|
noise = property(getNoise, "I'm the 'nHeights' property.")
|
|
|
datatime = property(getDatatime, "I'm the 'datatime' property")
|
|
|
ltctime = property(getltctime, "I'm the 'ltctime' property")
|
|
|
|
|
|
ltctime = property(getltctime, "I'm the 'ltctime' property")
|
|
|
|
|
|
class AMISR:
|
|
|
def __init__(self):
|
|
|
self.flagNoData = True
|
|
|
self.data = None
|
|
|
self.utctime = None
|
|
|
self.type = "AMISR"
|
|
|
|
|
|
#propiedades para compatibilidad con Voltages
|
|
|
self.timeZone = 300#timezone like jroheader, difference in minutes between UTC and localtime
|
|
|
self.dstFlag = 0#self.dataIn.dstFlag
|
|
|
self.errorCount = 0#self.dataIn.errorCount
|
|
|
self.useLocalTime = True#self.dataIn.useLocalTime
|
|
|
|
|
|
self.radarControllerHeaderObj = None#self.dataIn.radarControllerHeaderObj.copy()
|
|
|
self.systemHeaderObj = None#self.dataIn.systemHeaderObj.copy()
|
|
|
self.channelList = [0]#self.dataIn.channelList esto solo aplica para el caso de AMISR
|
|
|
self.dtype = numpy.dtype([('real','<f4'),('imag','<f4')])
|
|
|
|
|
|
self.flagTimeBlock = None#self.dataIn.flagTimeBlock
|
|
|
#self.utctime = #self.firstdatatime
|
|
|
self.flagDecodeData = None#self.dataIn.flagDecodeData #asumo q la data esta decodificada
|
|
|
self.flagDeflipData = None#self.dataIn.flagDeflipData #asumo q la data esta sin flip
|
|
|
|
|
|
self.nCohInt = 1#self.dataIn.nCohInt
|
|
|
self.nIncohInt = 1
|
|
|
self.ippSeconds = None#self.dataIn.ippSeconds, segun el filename/Setup/Tufile
|
|
|
self.windowOfFilter = None#self.dataIn.windowOfFilter
|
|
|
|
|
|
self.timeInterval = None#self.dataIn.timeInterval*self.dataOut.nFFTPoints*self.dataOut.nIncohInt
|
|
|
self.frequency = None#self.dataIn.frequency
|
|
|
self.realtime = 0#self.dataIn.realtime
|
|
|
|
|
|
#actualizar en la lectura de datos
|
|
|
self.heightList = None#self.dataIn.heightList
|
|
|
self.nProfiles = None#Number of samples or nFFTPoints
|
|
|
self.nRecords = None
|
|
|
self.nBeams = None
|
|
|
self.nBaud = None#self.dataIn.nBaud
|
|
|
self.nCode = None#self.dataIn.nCode
|
|
|
self.code = None#self.dataIn.code
|
|
|
|
|
|
#consideracion para los Beams
|
|
|
self.beamCodeDict = None
|
|
|
self.beamRangeDict = None
|
|
|
|
|
|
def copy(self, inputObj=None):
|
|
|
|
|
|
if inputObj == None:
|
|
|
return copy.deepcopy(self)
|
|
|
|
|
|
for key in inputObj.__dict__.keys():
|
|
|
self.__dict__[key] = inputObj.__dict__[key]
|
|
|
|
|
|
|
|
|
def isEmpty(self):
|
|
|
|
|
|
return self.flagNoData
|
