WIDAR RealTime Data Display D. Del Rizzo

1
WIDAR Real-Time Data DisplayD. Del Rizzo
EVLA Correlator Software f2f April 3-6, 2006
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

D Del Rizzo April 4, 2006
EVLA Correlator Software f2f WIDAR Real-Time
Data Display
2
3
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)

3
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
4
4
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
5
RTDD Display Control
5
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
6
Input Chip Panel
6
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
7
Wideband Correlator Chip Panel
7
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
8
Output Chip Panel
8
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
9
Filter Chip PanelOutput State Counts
9
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
10
Filter Chip PanelRe-quantizer
10
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
11
Filter Chip PanelRFI Blanker
11
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
12
Filter Chip PanelClip Counter
12
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
13
Filter Chip PanelTone Extractor
13
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
14
Correlation CoefficientsWideband Lag/Frequency
14
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
15
Correlation CoefficientsSingle Lag/Frequency
15
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
16
Outstanding Issues

• Data format for transfer?
• ASDM?
• Internal format (XML?)
• Connectivity/integration with correlator software
• Access permissions via distributed network

16
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display
17
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!

17
D Del Rizzo April 4, 2006
EVLA Correlator Software f2f Widar Real-Time
Data Display