Ambiguity Function and Detection Probability Considerations for Matched Waveform Design
Abstract
In this paper we investigate the range resolution
of transmit waveform designs matched to extended targets. We
specifically look at eigenwaveform design which is also known
as SNR-based illumination waveform design. To that end, we
evaluate some ambiguity functions of radar systems employing
eigenwaveforms. We consider some example targets and plot the
corresponding ambiguity functions. Unlike traditional waveforms
whose responses totally dictate the shape of the ambiguity function,
both matched illumination waveform and extended target
response contribute to the shape of the ambiguity function. In
other words, range and Doppler resolutions are not just functions
of the transmit waveform but of the target response itself which
makes for interesting ambiguity functions. Moreover, we also
evaluate the detection probability of eigenwaveforms matched to
extended targets and show the performance improvement over
wideband pulsed waveform designs.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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