sponsored jointly by The Institute of Physics and the Physical Society. sponsored by the Institute of Physics & the Physical Society, Electronics Group. sponsored by the Institute of Quality Assurance. sponsored by the Institute of the Aeronautical Sciences. sponsored by the Institute of the Aerospace Sciences. sponsored by the Institute of Electrical and Electronics Engineers. sponsored by the Institute of Electrical and Electronic Engineers. sponsored by the Institute of Metals and the Iron and Steel Institute. sponsored by the Institute Elestrical and Electronic Engineers. sponsored by the Institute of Electrical and Electronics Engineers Signal Processing Society.