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TrkDataReader.IFMS.ODTK6.wsc
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<?xml version="1.0"?>
<!-- ===================================================== -->
<!-- ODTK data reader for IFMS formatted measurements -->
<!-- -->
<!-- author: jens ramrath, 13 jan 2014 -->
<!-- ===================================================== -->
<component>
<?component error="true" debug="true"?>
<registration
description="IFMS Format reader"
progid="TrkDataReader.IFMS.ODTK6.wsc"
version="1.00"
classid="{42D6DC61-0E69-46da-B95D-03DA126305CA}"
>
</registration>
<public>
<!-- Properties -->
<property name="FileName">
<get internalName="GetFileName"/>
</property>
<property name="SupportsMultipleTrackers">
<get internalName="GetSupportsMultipleTrackers"/>
</property>
<property name="SupportsSave">
<get internalName="GetSupportsSave"/>
</property>
<!-- Methods -->
<method name="Reset"/>
<method name="OpenFile">
<parameter name="newVal"/>
<parameter name="newFile"/>
</method>
<method name="CloseFile"/>
<method name="GetObsSet">
<parameter name="setCollection"/>
</method>
<method name="GetSupportedObsSet">
<parameter name="setColl"/>
</method>
<method name="SaveObs">
<parameter name="pEnum"/>
<parameter name="bAppend"/>
</method>
<method name="GetRegKey"/>
</public>
<script language="VBScript">
<![CDATA[
'-------------------------------------------------------------------------
' Member variables
'-------------------------------------------------------------------------
Option explicit
Const ForReading = 1
Const ForWriting = 2
Const ForAppending = 8
Const eMTRange = 1
Const eMTDoppler = 2
Const eMTAzimuth = 11
Const eMTElevation = 12
Const eGroundReceiveTime = 0
Const eSatelliteTransmitTime = 1
Const eGroundTransmitTime = 2
Const eSatelliteReceiveTime = 3
'-------------------------------------------------------------------------
' define some global variables we'll be using
'-------------------------------------------------------------------------
Dim m_sfileSysObj, m_Stream, m_sFileName, m_Satellite, m_Facility, m_MeasType
Set m_sfileSysObj = CreateObject("Scripting.FileSystemObject")
m_sFileName = ""
'-------------------------------------------------------------------------
' define some regular expression objects that we'll be using
'-------------------------------------------------------------------------
dim oRegExp, oMatches, oMatch
Set oRegExp = new RegExp
'-------------------------------------------------------------------------
' Create obsSet and obs objects for use later on
'-------------------------------------------------------------------------
Dim version
version = "6.0"
Dim textFile, ObjectStr, versionStr, regValue, ODDBObjectFile
versionStr = "HKEY_LOCAL_MACHINE\SOFTWARE\AGI\ODTK\" & version & "\InstallHome"
GetRegKey(versionStr)
ODDBObjectFile = m_sfileSysObj.Buildpath(regValue, "\ODTK\AppData\Scripts\MeasProviders\WindowsScriptComponents\" & "CreatODDBObjects.txt")
Set textFile = m_sfileSysObj.OpenTextFile(ODDBObjectFile, ForReading)
Dim pObsSet
ObjectStr = textFile.ReadLine ' ObjectStr = "AgMach10_5.AgODObsSet" or similar
Set pObsSet = CreateObject(ObjectStr)
Dim pObs
ObjectStr = textFile.ReadLine ' ObjectStr = "IAgODProvideTrackingData5.AgODGenericObs" or similar
Set pObs = CreateObject(ObjectStr)
'-------------------------------------------------------------------------
' Define look up tables to translate names to ID numbers
'-------------------------------------------------------------------------
Dim satIDs
Set satIDs = CreateObject("Scripting.Dictionary")
satIDs.Add "XMM_", "1001"
Dim facIDs
Set facIDs = CreateObject("Scripting.Dictionary")
facIDs.Add "KO11", "501"
facIDs.Add "PR11", "502"
facIDs.Add "PR12", "503"
'-------------------------------------------------------------------------
' Function GetFileName()
'-------------------------------------------------------------------------
Function GetFileName()
GetFileName = m_sFileName
End Function
'-------------------------------------------------------------------------
' SupportsSave property [read-only]
'-------------------------------------------------------------------------
Function GetSupportsSave()
GetSupportsSave = False
End Function
'-------------------------------------------------------------------------
' SupportsMultipleTrackers property [read-only]
'-------------------------------------------------------------------------
Function GetSupportsMultipleTrackers()
GetSupportsMultipleTrackers = True
End Function
'-------------------------------------------------------------------------
' Reset method
'-------------------------------------------------------------------------
Function Reset()
if m_sFileName <> "" Then
Dim newVal
newVal = m_sFileName
OpenFile newVal, False
End if
End Function
'-------------------------------------------------------------------------
' OpenFile method
'-------------------------------------------------------------------------
Function OpenFile(newVal, newFile)
dim line
If m_sFileName <> "" Then
m_Stream.Close
m_sFileName = ""
End If
m_sFileName = newVal
If newFile Then
Set m_Stream = m_sfileSysObj.OpenTextFile(m_sFileName, ForWriting, True)
Else
Set m_Stream = m_sfileSysObj.OpenTextFile(m_sFileName, ForReading)
' ************************
' ***** READ HEADER ******
' ************************
' ***** Find station_id *****
m_Facility = ""
oRegExp.pattern = "<station_id>\s+(\S+)\s+</station_id>"
Do Until m_Stream.AtEndOfStream
line = m_Stream.ReadLine
set oMatches = oRegExp.Execute(line)
' If we found the satellite ID then we are done.
if oMatches.Count = 1 then
m_Facility = facIDs.Item(oMatches(0).submatches(0))
exit do
end if
loop
' ***** Find spacecraft_id *****
m_Satellite = ""
oRegExp.pattern = "<spacecraft_id>\s+(\S+)\s+</spacecraft_id>"
Do Until m_Stream.AtEndOfStream
line = m_Stream.ReadLine
set oMatches = oRegExp.Execute(line)
' If we found the satellite ID then we are done.
if oMatches.Count = 1 then
m_Satellite = satIDs.Item(oMatches(0).submatches(0))
exit do
end if
loop
' ***** Find dap_type *****
m_MeasType = ""
oRegExp.pattern = "<dap_type>\s+(\S+)\s+</dap_type>"
Do Until m_Stream.AtEndOfStream
line = m_Stream.ReadLine
set oMatches = oRegExp.Execute(line)
' If we found the satellite ID then we are done.
if oMatches.Count = 1 then
m_MeasType = oMatches(0).submatches(0)
exit do
end if
loop
End If
End Function
'-------------------------------------------------------------------------
' CloseFile method
'-------------------------------------------------------------------------
Function CloseFile()
If m_sFileName <> "" Then
m_Stream.Close
m_sFileName = ""
End If
End Function
'-------------------------------------------------------------------------
' GetObsSet method
'-------------------------------------------------------------------------
Function GetObsSet(setColl)
dim measNum, dateTime, intervalCount, carrierPhase, spurious, deltaDelay, carrLoopStatus
dim delay, code, kd1
dim line, prevDateTime, prevCarrierPhase, prevDeltaDelay
dim antenna, numObsSets
prevDateTime = ""
prevCarrierPhase = ""
prevDeltaDelay = ""
pObsSet.Clear()
numObsSets = 0
' Note that we are going to process the entire file of data and return ALL
' measurements. We sort of have to because we need to be checking all the
' time tags to identify obs sets.
'-------------------------------------------------------------------------
' parse the line (see sample below)
'
' <body_Doppler>
' // Number SampleTime IntervalCount CarrierPhase Spurious DeltaDelay CarrLoopStatus
' 1 20131013.231502.000 99946303624 1615085993.46160 No 0 Locked
' 2 20131013.231503.000 99963803624 1615385381.25110 No 4.31661240106e-06 Locked
' 3 20131013.231504.000 99981303624 1615684769.44180 No 8.633134649205e-06 Locked
'
'-------------------------------------------------------------------------
' *******************
' ***** DOPPLER *****
' *******************
' RangeRate = (deltadelay_i - deltadelay_i-1)*c/timediff
Select Case m_MeasType
case "D1", "D2"
oRegExp.pattern = "\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)"
Dim pastBody_Doppler
pastBody_Doppler = false
Do Until m_Stream.AtEndOfStream
line = m_Stream.ReadLine
set oMatches = oRegExp.Execute(line)
' in case something in the header matches the regex
if Trim(line) = "<body_Doppler>" then
pastBody_Doppler = true
end if
if oMatches.Count = 1 AND pastBody_Doppler AND Left(Trim(line), 2) <> "//" then
measNum = oMatches(0).submatches(0)
dateTime = oMatches(0).submatches(1)
intervalCount = oMatches(0).submatches(2)
carrierPhase = oMatches(0).submatches(3)
spurious = oMatches(0).submatches(4)
deltaDelay = oMatches(0).submatches(5)
carrLoopStatus = oMatches(0).submatches(6)
' convert date to "YYYY:MM:DD" format
dateTime = DateTime2STKFormat(dateTime)
if prevDateTime <> "" then
pObsSet.Clear()
pObsSet.Date.unit = "YYYY:MM:DD"
pObsSet.Date = dateTime
'-------------------------------------------------------------------------
' Initialize observation
'-------------------------------------------------------------------------
pObs.Date.unit = "YYYY:MM:DD"
pObs.Date = dateTime
pObs.TimeOrigin = eGroundReceiveTime
'-------------------------------------------------------------------------
' Set up facility and satellite IDs. Facility must come first for 2-way ranging.
'-------------------------------------------------------------------------
pObs.TrackerIDs.Clear()
pObs.TrackerIDs.Insert 0, m_Facility ' Facility must be first item
pObs.TrackerIDs.Insert 1, m_Satellite ' Satellite follows Facility
' *** compute doppler ***
Dim dTimeSec
dTimeSec = TimeDiff(prevDateTime, dateTime)
Dim dPhase
dPhase = carrierPhase - prevCarrierPhase
Dim dDeltaDelay
dDeltaDelay = deltaDelay - prevDeltaDelay
Dim c
c = 299792458.0 ' speed of light (m/s)
Dim doppler
doppler = dDeltaDelay * c / dTimeSec
pObs.MeasureType = eMTDoppler
pObs.value.Unit = "m/sec"
pObs.value = doppler
pObs.Doppler_Dt = dTimeSec
pObsSet.Add pObs
If pObsSet.Count > 0 Then
setColl.Add pObsSet
numObsSets = numObsSets + 1
End If
end if
prevDateTime = dateTime
prevCarrierPhase = carrierPhase
prevDeltaDelay = deltaDelay
End If
Loop
' *******************
' ***** DOPPLER *****
' *******************
' sample:
' <body_Ranging>
' // Number SampleTime Delay Code AmbF SpCF SpTF CorF KD-1 RecF ToneLevel CodeLevel PhaseError ToneLoopSN DownModIndex
' 22 20131013.231523.000 8.792879548268e-07 0 No No No Yes -4.622872656013e-06 Yes -21.0 0.000 0.000 46.20659450546 0.177
' 23 20131013.231524.000 3.478826502976e-07 0 No No No Yes -4.314742430456e-06 Yes -21.1 0.000 0.000 46.80659450546 0.177
' 24 20131013.231525.000 1.347422160521e-06 1 No No No Yes -4.314742430456e-06 Yes -19.6 0.000 0.000 48.30659450546 0.207
' 25 20131013.231526.000 8.09409800515e-07 1 No No No Yes -4.314647693127e-06 Yes -20.6 0.000 0.000 46.50659450546 0.185
case "RGXXXXX"
oRegExp.pattern = "\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)"
Dim pastBody_Ranging
pastBody_Ranging = false
Do Until m_Stream.AtEndOfStream
line = m_Stream.ReadLine
set oMatches = oRegExp.Execute(line)
' in case something in the header matches the regex
if Trim(line) = "<body_Ranging>" then
pastBody_Ranging = true
end if
if oMatches.Count = 1 AND pastBody_Ranging AND Left(Trim(line), 2) <> "//" then
measNum = oMatches(0).submatches(0)
dateTime = oMatches(0).submatches(1)
delay = oMatches(0).submatches(2)
code = oMatches(0).submatches(3)
kd1 = oMatches(0).submatches(8)
' convert date to "YYYY:MM:DD" format
dateTime = DateTime2STKFormat(dateTime)
pObsSet.Clear()
pObsSet.Date.unit = "YYYY:MM:DD"
pObsSet.Date = dateTime
'-------------------------------------------------------------------------
' Initialize observation
'-------------------------------------------------------------------------
pObs.Date.unit = "YYYY:MM:DD"
pObs.Date = dateTime
pObs.TimeOrigin = eGroundReceiveTime
'-------------------------------------------------------------------------
' Set up facility and satellite IDs. Facility must come first for 2-way ranging.
'-------------------------------------------------------------------------
pObs.TrackerIDs.Clear()
pObs.TrackerIDs.Insert 0, m_Facility ' Facility must be first item
pObs.TrackerIDs.Insert 1, m_Satellite ' Satellite follows Facility
' *** compute range ***
Dim range
range = kd1 * 299792458.0 ' kd1 * speed of light
pObs.MeasureType = eMTRange
pObs.value.Unit = "km"
pObs.value = range
pObsSet.Add pObs
If pObsSet.Count > 0 Then
setColl.Add pObsSet
numObsSets = numObsSets + 1
End If
End If
Loop
End Select
GetObsSet = numObsSets
End Function ' GetObsSet
' ****************************
' ***** Timing functions *****
' ****************************
Function DateTime2STKFormat(dateTime)
Dim y, m, d, h, n, s
y = Mid(dateTime, 1, 4)
m = Mid(dateTime, 5, 2)
d = Mid(dateTime, 7, 2)
h = Mid(dateTime, 10, 2)
n = Mid(dateTime, 12, 2)
s = Mid(dateTime, 14)
DateTime2STKFormat = y & ":" & m & ":" & d & ":" & h & ":" & n & ":" & s
End Function
Function TimeDiff(dateTime1, dateTime2)
' expects input times in 2014:01:14:10:49:12.345 format
' a positive TimeDiff is returned when time1 < time2
Dim t1split, t2split
t1split = Split(dateTime1, ":")
t2split = Split(dateTime2, ":")
Dim d1, d2
d1 = CDate(t1split(2) & "/" & t1split(1) & "/" & t1split(0) & " " & Mid(dateTime1, 12, 8))
d2 = CDate(t2split(2) & "/" & t2split(1) & "/" & t2split(0) & " " & Mid(dateTime2, 12, 8))
Dim mSecSplit1, mSecSplit2
mSecSplit1 = Split(dateTime1, ".")
mSecSplit2 = Split(dateTime2, ".")
Dim mSecDiff
mSecDiff = mSecSplit2(1)/1000 - mSecSplit1(1)/1000
TimeDiff = DateDiff("s", d1, d2) + mSecDiff
End Function
'-------------------------------------------------------------------------
' GetSupportedObsSet method
'-------------------------------------------------------------------------
Function GetSupportedObsSet(setColl)
Dim numSets
numSets = 0
GetSupportedObsSet = numSets
End Function
'-------------------------------------------------------------------------
' SaveObs method
'-------------------------------------------------------------------------
Function SaveObs(pEnum, bAppend)
Dim nObsSaved
nObsSaved = 0
SaveObs = nObsSaved
End Function
Function GetRegKey (regKey)
Dim objShell
Set objShell = CreateObject("WScript.Shell")
regValue = objShell.RegRead(regKey)
Set objShell = nothing
End Function
]]>
</script>
</component>