1. United States Department of Defense, Washington, DC, USA
2. United States DEVCOM Army Research Laboratory, Adelphi, MD, USA
3. National Institute of Standards and Technology, Boulder, CO, USA
4. University of Manchester, Harwell Science and Innovation Campus, Oxfordshire, U.K.
5. Centre for Maritime Research and Experimentation, Science and Technology Organization, NATO, La Spezia, Italy
6. NIST, Gaithersburg, MD, USA
7. Faculty of Information Technology and Communication Sciences, Tampere University, Tampere, Finland