EO Satellite Tasking Extension for SPS OGC 10-135
«DataType»
Core Tasking Parameters:: AcquisitionParameters
«DataType»
AcquisitionParametersSAR
«property» + GroundResolution: RealPair [0..1]
+ InstrumentMode: ScopedName [0..1] + FusionAccepted: Boolean [0..1]
+ PolarizationMode: ScopedName [0..1]
Figure 20 – UML diagram of the AcquisitionParametersSAR class
7.3.2.1.3 SWE Common encoding
The following table and XML snippet describe how this tasking parameters group shall be encoded using the SWE Common Data Model:
Field Name Definition
Component
AcquisitionParameters http:www.opengis.netdefpropertyOGC-EO0sarAcquisitionParametersSAR
DataRecord GroundResolution
http:www.opengis.netdefpropertyOGC-EO0GroundResolution QuantityRange
InstrumentMode http:www.opengis.netdefpropertyOGC-EO0InstrumentMode
No default code space is defined by this specification for SAR instruments since there does not seem to be a standard for naming SAR
acquisition modes. A URL linking to the definitions of each listed mode shall thus be provided by each SAR implementation of EO-SPS.
Category
FusionAccepted http:www.opengis.netdefpropertyOGC-EO0FusionAccepted
Boolean PolarizationMode
http:www.opengis.netdefpropertyOGC-EO0sarPolarizationMode A default code space is defined by this specification
“ http:www.opengis.netdefpropertyOGC-EO0sarPolarizationModes
” and should be used when applicable
Category
Name Description
Type unit
GroundResolution The ground resolution is the distance between two contiguous pixels of
remote sensed imagery when projected on the earth. This parameter allows the user to select a range of acceptable ground resolutions.
Real Pair meter
InstrumentMode A categorical value used to specify a particular instrument configuration.
All possible modes should be defined by a code space, usually specific to the instrument in the case of SAR.
ScopedName FusionAccepted
Specifies if imagery obtained by fusing several images acquired separately and co-registered is acceptable.
Boolean PolarizationMode
ReceiveTransmit polarization mode of a SAR instrument. ScopedName
Copyright ©
2011 Open
Geospatial Consortium
73
OGC 10-135 EO Satellite Tasking Extension for SPS
swe:field name
= AcquisitionParameters
swe:DataRecord definition
= http:www.opengis.netdefpropertyOGC-EO0sarAcquisitionParametersSAR
swe:field name
= GroundResolution
swe:QuantityRange definition
= http:www.opengis.netdefpropertyOGC-EO0GroundResolution
gml:name Ground Resolution
gml:name swe:uom
code =
m swe:constraint
swe:AllowedValues swe:interval
1.0 50 swe:interval
swe:AllowedValues swe:constraint
swe:value 20 50
swe:value swe:QuantityRange
swe:field swe:field
name =
InstrumentMode swe:Category
definition =
http:www.opengis.netdefpropertyOGC-EO0InstrumentMode gml:name
Instrument Mode gml:name
swe:codeSpace xlink:href
= http:www.dlr.deregistryTXModes
swe:constraint swe:AllowedTokens
swe:value ScanSAR
swe:value swe:value
StripMap swe:value
swe:value SpotLight
swe:value swe:AllowedTokens
swe:constraint swe:value
ScanSar swe:value
swe:Category swe:field
swe:field name
= FusionAccepted
swe:Boolean definition
= http:www.opengis.netdefpropertyOGC-EO0FusionAccepted
gml:name Fusion Accepted
gml:name swe:value
true swe:value
swe:Boolean swe:field
swe:field name
= PolarizationMode
swe:Category definition
= http:www.opengis.netdefpropertyOGC-EO0sarPolarizationMode
gml:name Polarization Mode
gml:name swe:codeSpace
xlink:href =
http:www.opengis.netdefpropertyOGC-EO0sarPolarizationModes swe:constraint
swe:AllowedTokens swe:value
HH swe:value
swe:value VV
swe:value swe:value
HH-HV swe:value
swe:value VV-VH
swe:value swe:AllowedTokens
swe:constraint swe:value
HH swe:value
swe:Category swe:field
swe:DataRecord swe:field
The code space defining all instrument modes identified by http:www.dlr.deregistryTXModes
in the example above shall be provided in a URL accessible form and encoded in the GML format. An example of instrument mode code
space is given in Annex C.
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© 2011
Open Geospatial
Consortium
