Ion charge-state distributions have been measured with high time resolution for short (20 /spl mu/s) and long (250 /spl mu/s) vacuum discharges of 300 A. Charge-state data for 3 /spl mu/s after ...

We investigate the ultimate communication limits over rapid phase varying channels and consider the capacity of a discrete-time non-coherent additive white Gaussian noise channel under the average ...