TeleKnoSys Interactive Tool for a God's Eye View of Flight Test Experiments
Flight test vehicle telemetry can be visualized in the field using existing dual-processor desktop computing technology. Our results show that processor speed allows more robust sensor analysis techniques, like Kalman filtering. In this case we used only 15% of the analysis time available within each major frame. The 10-15 Hz visualization rates that are possible with scenes that contain tens of thousands of polygons are too slow for state-of-the-art flight simulators, but provide a wealth of information from real-time flight vehicles. A newer version of the APL decommutation system can time-tag minor frames, which minimizes data loss. Specifically, we can use all of the minor frames in the first major frame collected after a dropout. Sending sporadic minor frames as they are collected may help fill the data gap associated with large dropouts, but an unbuffered data collection scheme reduces the time slice available for data analysis. To avoid a scaled earth model and single precision vehicle position image jitter, we are implementing Vega's Large Area Database Manager (LADBM), which provides double precision position calculations and can dynamically shift the database origin to a local area-of-interest. As computers and graphics accelerators continue to increase in speed and power, and Telemetry System development gets increasingly more complex acquiring tremendous amounts of data, interactive 3D visualization tools will become essential in the understanding of these data sets.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 7875
- Report Number(s):
- SAND99-0271C; TRN: AH200116%%67
- Resource Relation:
- Conference: International Telemetering Conference, Las Vegas, NV (US), 10/25/1999--10/28/1999; Other Information: PBD: 14 Jun 1999
- Country of Publication:
- United States
- Language:
- English
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