1. EADS Deutschland GmbH, Defence Electronics, Wörthstr. 85, 89077 Ulm, Germany, patrick.schuh@ieee.org
2. EADS Deutschland GmbH, Defence Electronics, Wörthstr. 85, 89077 Ulm, Germany
3. Fraunhofer Institute of Applied Solid-State Physics, Tullastr. 72, 79108 Freiburg, Germany