D. A. Happel

发表

Proposed avionics architecture for Air Force Air Mobility Command aircraft to meet CNS/ATM and GATM requirements

D. A. Happel, 1998, 17th DASC. AIAA/IEEE/SAE. Digital Avionics Systems Conference. Proceedings (Cat. No.98CH36267).

Use of Military GPS in a Civil Environment

D. A. Happel, 2003 .