Cramer-Rao bound in detection of reversals

preprint2013arXivOpen access

Abstract

We use the Cramer-Rao bound to show which short magnetic reversals can be recovered successfully from a magnetic anomaly profile. Using a simple variant of the Vine-Matthews model, we show, in particular, that errors in determining the duration of a short subchron are much smaller than errors in localizing the center of the subchron.

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