Title :
On-Orbit SEU Rates of UC1864 PWM: Comparison of Ground Based Rate Calculations and Observed Performance
Author :
Likar, Justin J. ; Bogorad, Alexander L. ; Lombardi, Robert E. ; Stone, Stephen E. ; Herschitz, Roman
Author_Institution :
Lockheed Martin Space Syst. Co., Newtown, PA, USA
Abstract :
More than 10 years of on-orbit UC1864 SEU data are compared with typical upset rate calculation methodologies and GCR environments. Results suggest that the most common calculation methods overestimate upset rates by at least 2×. Mitigation techniques are also verified via direct in orbit observations.
Keywords :
pulse width modulation; radiation hardening (electronics); space vehicle electronics; GCR environments; UC1864 PWM; ground based rate calculations; mitigation techniques; on-orbit UC1864 SEU data; orbit observations; radiation hardening; upset rate calculation methodologies; Performance evaluation; Predictive models; Pulse width modulation; Radiation effects; Radiation hardening; Single event upset; Space vehicles; Radiation effects; radiation hardening;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2012.2224128
