G. V. Antsev, O. S. Mironov
A short description of SDR is given. The first step in SDR realization is in integration of a number systems, which previously were supposed to be considerably different and separated from each other, in one hardware. The second step is to combine those systems in one with the help of software.
A short description of ultra short pulse systems is given. The possibilities of using ultra short pulses in SDR are shown. The diffi-culties in their realization are described.