1. Signal and Image Centre; Royal Military Academy; Av. de la Renaissance 30 1000 Brussels Belgium
2. Department of Electrical and Electronic Engineering; University of Los Andes; Kr 1 19A-40 P7 Bogota Colombia
3. Telecommunications Laboratory; Catholic University of Louvain; Place du Levant 2 1348 Louvain-la-Neuve Belgium
4. ERA Technology Ltd; Cleeve Road Leatherhead UK