Graphical Interference Management System

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Graphical InterferenceManagement System

• BR Seminar
• Geneva
• 30/10 03/11/2006

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GIMS The Big Picture
Geostationary
Databases
Programming
Diagrams
Interference
Data Capture
GXT
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Diagram Types
Gain Contours Service Area AG/GSO
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Databases
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Databases The Big Picture
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Databases - HOWTOs
6.0

• Database Menu
• Open, Close
• New
• Incremental Update
• REFDB Settings
• Database Toolbar
• Current database
• Browse

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Diagrams
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Diagrams How to view
6.0

• Database Explorer
• Search by ID
• Filter Data
• Notice Actions
• Clone
• Export

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Diagrams How to view

• GimsQry
• Create list of diagrams based on criteria

Fill in criteria
List of diagrams
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Diagrams How to view

• SpaceQry

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Diagram Interaction

• GIMS-type interaction
• Zoom
• Click for selecting elements
• Double-click to edit properties (e.g. Contours
  gain)
• Tooltip to view properties
• Usual windows-type interaction
• Cut/copy/paste/Drag and drop
• Line style / colors
• Undo/redo
• Map characteristics
• Projections
• Display borders

6.0
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Diagrams - Features
Countries In a Contour
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Diagrams - Features
Copy Diagram Picture
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Diagrams - Features
Overlapping Mode
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Data Capture
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Data Capture The Big Picture
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Data Capture What you cant do

• Design your antenna !
• View GIMS as a SpaceCap equivalent for graphical
  data.
• Change the contour shape interactively.

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Data Capture HOWTOs
2
1
Enter satellite position
Select diagram type
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3
Filter
Complex diagrams (map recognition)
Simple diagrams
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GXT
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GXT Files The Big Picture
FormatInfo format_ver1 GeoMain admJ sat_name
JCSAT-2 long_nom154.0000 n_diag1 COHeader bea
m_idDCH emi_rcpE polar_discC reasonC n_bore1
n_cont9 B1 gain0.00 p119.030835.1593 C1 ga
in-2.00 n_point54 P1119.821431.1617 P2119.424
031.1030 P3118.975131.0469
Textual representation( Format Attachment 2 to
CR 58 ) Electronic Notification
Export
Import
Validation
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GXT Files How to Edit
6.0

• GXTEdit
• Edition
• Validation
• Point Renumbering

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Validation
On demand validation
On the fly validation
6.0
Messages GXTEdit
Filtering For Correction
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Interference
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Interference The Big Picture

• Gain tool interpolates gain at any location on
  the earth
• Contour generation using interpolation (nice with
  3db ellipse)
• PFD examination produces list of affected
  countries
• Appendix 30, Article 21

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Interference - Gain
Get the gain by clicking on the map Result in
status bar
Calculate Gain at given coordinates Generate a
contour of a given gain
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Interference Contour Generation
Elliptical beam (-3dB ellipse)
-2, -4, -6, -8, -10, -20 dB contours
Antenna Pattern
Also for shaped beams using interpolation
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Interference - PFD
PFD Tool Click on map to get PFD
Access to input data dialog box
PFD Value at Point
PFD contour List of affected countries
Data required for PFD analysis e.g. maximum
gain, power
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Programming
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Programming

• SHAPEDBM.DLL
• Gain interpolation
• GIMAPI32.DLL
• Browse REFDB
• Diagram data parsing
• Browse personal DBs
• Import/Export GXT files
• Save data into personal DBs

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FAQ

• Where can I get GIMS ?
• SRS DVD
• BR IFIC CD (Updates)
• How do I ?
• On-line help (F1, Shift F1)
• brsas_at_itu.int
• Workshop