Abstract
This paper presents a new, non-parametric test for detecting modeling mismatches in a propagation medium, as shallow water. The test is based on the fact that if there are no model uncertainties, the corresponding modal spectrum of the received signal is strictly band-limited to an a-priori known band. Any mismatches in the assumed model cause the modal spectrum out of this band to be non-zero. To make the test independent of the emitters characteristic we use the generalized likelihood ratio test which uses maximum likelihood estimate of the unknown modal spectrum. We demonstrate the operation of the proposed test by applying it (via computer simulations) to a complex, practical scenario.
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