Method for separating target signals from unwanted signals in a metal detector
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United States of America Patent
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Jan 19, 2016
Grant Date -
Jun 13, 2013
app pub date -
Feb 8, 2013
filing date -
Nov 3, 2011
priority date (Note) -
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Abstract
A method for detecting electrically conductive targets in soil including the steps of: generating a transmit magnetic field for transmission into the soil based on a transmit signal; receiving a receive magnetic field; providing a receive signal induced by the receive magnetic field; selecting at least two models, each approximating a form of a signal due to a different type of source; processing the receive signal using the at least two models to produce at least two independent signals, each representing a component of the receive signal due to a different type of source; and producing, based on at least two independent signals, an indicator output signal indicative of the presence of the electrically conductive target.
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