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Opad-edifis real-time processing
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Katsinis, Constantine |
| Copyright Year | 1997 |
| Description | The Optical Plume Anomaly Detection (OPAD) detects engine hardware degradation of flight vehicles through identification and quantification of elemental species found in the plume by analyzing the plume emission spectra in a real-time mode. Real-time performance of OPAD relies on extensive software which must report metal amounts in the plume faster than once every 0.5 sec. OPAD software previously written by NASA scientists performed most necessary functions at speeds which were far below what is needed for real-time operation. The research presented in this report improved the execution speed of the software by optimizing the code without changing the algorithms and converting it into a parallelized form which is executed in a shared-memory multiprocessor system. The resulting code was subjected to extensive timing analysis. The report also provides suggestions for further performance improvement by (1) identifying areas of algorithm optimization, (2) recommending commercially available multiprocessor architectures and operating systems to support real-time execution and (3) presenting an initial study of fault-tolerance requirements. |
| File Size | 1985897 |
| Page Count | 42 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19970023106 |
| Archival Resource Key | ark:/13960/t6062gz0m |
| Language | English |
| Publisher Date | 1997-06-01 |
| Access Restriction | Open |
| Subject Keyword | Computer Programming And Software Architecture Computers Aircraft Engines Multiprocessing Computers Memory Computers Plumes Real Time Operation Computer Programs Optical Measurement Fault Tolerance Algorithms Fault Detection Emission Spectra Anomalies Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
