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

2. D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – WIDAR Real-Time Data Display2 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

3. 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) D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display

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

5. 5D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display RTDD Display Control

6. 6D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Input Chip Panel

7. 7D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Wideband Correlator Chip Panel

8. 8D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Output Chip Panel

9. 9D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Filter Chip Panel Output State Counts

10. 10D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Filter Chip Panel Re-quantizer

11. 11D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Filter Chip Panel RFI Blanker

12. 12D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Filter Chip Panel Clip Counter

13. 13D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Filter Chip Panel Tone Extractor

14. 14D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Correlation Coefficients Wideband Lag/Frequency

15. 15D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display Correlation Coefficients Single Lag/Frequency

16. 16 Outstanding Issues Data format for transfer? –ASDM? –Internal format (XML?) Connectivity/integration with correlator software Access & permissions via distributed network D Del Rizzo April 4, 2006 EVLA Correlator Software f2f – Widar Real-Time Data Display

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