widar real-time data display d. del rizzo evla correlator software f2f april 3-6, 2006
TRANSCRIPT
WIDAR Real-Time Data DisplayD. Del Rizzo
N ational R esearch C ounci lC anada
C onsei l national de recherchesC anada
EVLA Correlator Software f2f April 3-6, 2006
D Del RizzoApril 4, 2006
EVLA Correlator Software f2f – WIDAR Real-Time Data Display 2
Overview• What is the Real-Time Data Display (RTDD)?
A diagnostic tool, used primarily in prototype testing, to allow correlator developers the ability to efficiently probe various parts of the system and visualize output correlator data.
• Utilized extensively in prototype testing• Utility likely to extend well into correlator operation
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RTDD Environment
• Java
– Platform independent
– Self-contained application
– Remote access to system from any desktop
– Multiple sessions run simultaneously
• Utilizes Java 2D Graph package (USQ Dept. of Mathematics)
D Del RizzoApril 4, 2006
EVLA Correlator Software f2f – Widar Real-Time Data Display
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EVLA Correlator Software f2f – Widar Real-Time Data Display
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EVLA Correlator Software f2f – Widar Real-Time Data Display
RTDD Display Control
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Input Chip Panel
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Wideband Correlator Chip Panel
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Output Chip Panel
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Filter Chip PanelOutput State Counts
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Filter Chip PanelRe-quantizer
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Filter Chip PanelRFI Blanker
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Filter Chip PanelClip Counter
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Filter Chip PanelTone Extractor
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Correlation CoefficientsWideband Lag/Frequency
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EVLA Correlator Software f2f – Widar Real-Time Data Display
Correlation CoefficientsSingle Lag/Frequency
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Outstanding Issues
• Data format for transfer?– ASDM?– Internal format (XML?)
• Connectivity/integration with correlator software• Access & permissions via distributed network
D Del RizzoApril 4, 2006
EVLA Correlator Software f2f – Widar Real-Time Data Display
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Summary
• A powerful tool for real-time correlator diagnostics – both during prototype testing and operations
• Finalizing data transfer formats essential • Early in design phase
– Input & suggestions welcome!
D Del RizzoApril 4, 2006
EVLA Correlator Software f2f – Widar Real-Time Data Display