Interest in the applications of ultrawideband (UWB) radar systems is
increasing rapidly all over the world. This is evident from the number
of monographs recently published on the subject and from the many papers
presented at international conferences on the general problems involved
in UWB radar and on its promising new applications. Conventional
(classical) methods seem to have exhausted their potential and studies
in the field are undergoing a profound change. This book presents some
of the novel approaches to radar system analysis now being investigated.
A good source of information on UWB signals is their structural analysis
in the time domain. This allows a greater understanding of the specific
features of UWB radar systems, such as the properties of receiving and
transmitting antennas, and various characteristics of near- and
far-range target scattering fields. It is shown how the systematic
application of numerical procedures can provide new results in the
evaluation of UWB radar target responses.
The authors do not try to cover all of the possible solutions to the
problem of multidimensional representation of target responses; rather
they aim to give a general understanding of the techniques of confluent
analysis, computer holography and adaptive synthesis of antenna
apertures. These methods have great potential for solving conventional
radar problems in target detection and recognition, and they are sure to
stimulate the use of UWB signals in many fields such as subsurface
probing and ecological monitoring.