Wideband direct RF digitisation using high order Nyquist sampling

A radar architecture is described in which radio frequency (RF) pulse waveforms are generated digitally in the transmitter and target returns are digitised without analogue down-conversion in the receiver, thereby eliminating most of the analogue components found in typical radar systems. This architecture, which has a number of important advantages over conventional radar systems, can be implemented using broadband digitisation technologies developed recently for the communications industry.