Abstract
The response of a radar or sonar target to a signal may be described by an impulse response function, which means that the target may be considered as a filter acting on a signal. It is known that filters are not exactly invertible, and this lack of invertibility may be used to identify the particular target that reflected a signal. We apply techniques from nonlinear dynamics to determine the probability that a function exists between 2 signals. If 2 identical signals are filtered by the same filter, then our statistic will indicate a high probability that a function exists between the 2 signals; if the 2 signals were filtered by different filters, then the statistic will show a low probability that the 2 signals are related by a function. We demonstrate target identification with both numerical simulations and acoustic experiments.
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Carroll, T.L., Rachford, F.J. (2014). Using Phase Space Methods for Target Identification. In: In, V., Palacios, A., Longhini, P. (eds) International Conference on Theory and Application in Nonlinear Dynamics (ICAND 2012). Understanding Complex Systems. Springer, Cham. https://doi.org/10.1007/978-3-319-02925-2_20
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DOI: https://doi.org/10.1007/978-3-319-02925-2_20
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