27 Scopus citations


Wakes induced by the motion of vessels may extend for tens of kilometers and exist for hours under certain conditions in the open sea. This provides a useful feature for long-range ship detection. We present a method for passively detecting a ship wake using measurements obtained by an airborne SQUID magnetic transducer that measures the first order gradients of the magnetic signature induced by the wake. Analytical formulas for wake magnetic gradients are derived to provide guidelines for using the airborne detector. We also derive bounds on the probability of wake detection for crosscorrelation and square-law detectors, which can be used to predict the expected performance. Numerical examples are used to demonstrate the applicability of our results.

Original languageEnglish
Pages (from-to)532-539
Number of pages8
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number1 II
StatePublished - 2000


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