1 / 14

Predicting the Future

Predicting the Future . The GTEM “Tamed?”. Mathew Aschenberg Derrell Gottwald Charles Grasso Echostar Technology Echostar Technology Echostar Technology Agency Engineer Quality Assurance Engineer Senior Agency Engineer

Download Presentation

Predicting the Future

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Predicting the Future The GTEM “Tamed?” Mathew Aschenberg Derrell Gottwald Charles Grasso Echostar TechnologyEchostar Technology Echostar Technology Agency Engineer Quality Assurance Engineer Senior Agency Engineer (303)706-5064 (303) 706-5236 (303) 706 – 5467 Email: matt.aschenberg@echostar.com Email: derrell.gottwald@echostar.com Email:charles.grasso@echostar.com

  2. Pre-Compliance Testing • Will It Pass? PREDICTION Not CORRELATION

  3. Site to Site Differences Acceptable correlation differences Calibration variation Tester differences/preferences Weather Voltage supplied (120 vs. 115) Measurement Uncertainty vs. Correlation

  4. Measurement Uncertainty vs. Correlation EUT Variation • Cable Layout • System state • Seam contact

  5. Statistical Review

  6. The Prediction Process

  7. Preparing the Wort

  8. Sample Report

  9. Benefits of Process • Accounts for site differences • Provides a linear gauge of unit performance • Self-Reinforcing - Improves with time • Transferable to other tests

  10. Future Work • Incorporate frequency specific statistics • Account for inter-relatedness between emissions

  11. EMCO 5407 GTEM!

  12. GTEM Overview • 50Ω transmission line • 3-orthogonal axis measurements • Spherical not cylindrical measurements • Size limited • Cables present problems

  13. Summary: • Correlation between OATS and non-traditional sites can be difficult to achieve. • A method is proposed that accounts for site differences and provides for prediction instead of correlation. • Using this method a GTEM, for example, can be used to provide useful pre-compliance data.

More Related