Multichannel signal enhancement

Patent · Mon Jan 01 04:00:00 EST 1990

OSTI ID:867483

Lewis, Paul S ^[1]

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1. Los Alamos, NM

A mixed adaptive filter is formulated for the signal processing problem where desired a priori signal information is not available. The formulation generates a least squares problem which enables the filter output to be calculated directly from an input data matrix. In one embodiment, a folded processor array enables bidirectional data flow to solve the recursive problem by back substitution without global communications. In another embodiment, a balanced processor array solves the recursive problem by forward elimination through the array. In a particular application to magnetoencephalography, the mixed adaptive filter enables an evoked response to an auditory stimulus to be identified from only a single trial.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4947480
• OSTI ID: 867483
• Country of Publication: United States
• Language: English

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/702/708/
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data
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desired
directly
elimination
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