A novel ultra-wideband (UWB) radar system is showed in this paper. It contains a UWB picoseconds pulse
transmitter, a balanced sampling receiver and antennas. The radar transmitter produces a couple of balanced pulses with
very fast leading edges and high amplitude when the pulse repetition frequency (PRF) is up to 1MHz. The receiver downconverts
the echo signals from the antenna. The transmitter and the receiver both take the balanced modes that they can
integrate directly with antennas, and they all have wide bandwidths. Measurement results demonstrate that this radar system
is well used for sensing objects without destruction. And it can achieve both fine range resolution and enough operating
distance at the same time, which enhances the capacity for target detection and classification effectively.
Keywords: Down-converts, picoseconds, PRF, UWB.
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