Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1990-06-18
1991-11-12
Wieder, Kenneth A.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
324 67, G01V 3165
Patent
active
050650980
ABSTRACT:
A locating system has its performance enhanced by the use of digital filtering. The locating system may include a transmitter for transmitting an electromagnetic signal from a concealed object. The locating system may also use electromagnetic signals from existing electromagnetic sources unrelated to the locator system. A receiver is provided for receiving a selected electromagnetic signal. The signal is subsequently converted from an analog signal into a digital signal and subjected to digital filtering. The resulting digital signal is then processed to provide location information about the concealed object.
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Hoy Leslie D.
Salsman Lloyd N.
Edmonds W. S.
The Charles Machine Works, Inc.
Wieder Kenneth A.
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