Abstract. The study of radar target transfer function (TTF) is relevant
to both automatic target recognition using range profiling methods and
the optimisation of detection performance by exploiting matched waveform techniques.
However, range profiles, and their associated TTFs, are known to
be highly sensitive to target geometry and aspect angle. This
paper demonstrates that TTFs and their associated range profiles both
decorrelate within 1° variation in aspect angle and that such
rapid decorrelation is dominated by scintillation effects rather than the
migration through range cell phenomenon. However, TTFs may offer advantages
over range profiling since the former are typically characterised by
many more data points than the latter. This leads to
increased separability of different target classes and generally lower correlation
statistics when using TTFs. TTFs are also important in the
design of matched radar waveforms. A combination of experimental results
using scaled model targets and simulation is presented which demonstrate
that under ideal conditions matched waveforms can improve the signal
to clutter ratio by up to 30 dB.
Related topics:
radar, surveillance and target acquisition
View first page of "Alabaster: Radar Target Transfer Functions and Their Application to Automatic Target Recognition and Matched Illumination Detection"
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