TWTA On-Orbit Reliability for Satellite Industry
| Autor: | Jason M. Robison, Eric F. Nicol |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Computer science
Amplifier 020208 electrical & electronic engineering 02 engineering and technology Traveling-wave tube Electronic Optical and Magnetic Materials Reliability engineering Term (time) law.invention Data set Power conditioner law Integrator 0202 electrical engineering electronic engineering information engineering Satellite Electrical and Electronic Engineering Reliability (statistics) |
| Zdroj: | IEEE Transactions on Electron Devices. 65:2366-2370 |
| ISSN: | 1557-9646 0018-9383 |
| DOI: | 10.1109/ted.2018.2802868 |
| Popis: | On-orbit reliability of traveling wave tube amplifiers (TWTAs) is examined for an on-orbit satellite fleet. It is compared with prior analyses performed for another satellite manufacturer’s on-orbit fleet. Interesting commonalities are seen across the two data sets suggesting industry level trends. By combining the data sets where possible, an exceptionally large data set is achieved which provides indisputable industry level trends. Through comparing and contrasting the two studies, an interesting thesis is proffered; the reliability rates are independent of satellite integrator requirements or their test protocols but instead are resultant from long term TWT and electronic power conditioner industry design and manufacturing improvements. The composite of the two on-orbit fleets represents 421 million amplifier hours of performance. This statistically significant sample size, along with the similarity of key on-orbit fleet performance and reliability statistics validate the trend accuracy and conclusions. It is clear that the TWTA suppliers are continuously improving their manufacturing processes and failure rates are steadily improving as a function of time. |
| Databáze: | OpenAIRE |
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