Multichannel signal enhancement
Abstract
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.
- Inventors:
-
- Los Alamos, NM
- Issue Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- OSTI Identifier:
- 867483
- Patent Number(s):
- 4947480
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03H - IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- multichannel; signal; enhancement; mixed; adaptive; filter; formulated; processing; desired; priori; information; available; formulation; generates; squares; enables; output; calculated; directly; input; data; matrix; embodiment; folded; processor; array; bidirectional; flow; solve; recursive; substitution; global; communications; balanced; solves; forward; elimination; particular; application; magnetoencephalography; evoked; response; auditory; stimulus; identified; single; trial; signal processing; particular application; data flow; input data; channel signal; signal process; filter output; evoked response; bidirectional data; /702/708/
Citation Formats
Lewis, Paul S. Multichannel signal enhancement. United States: N. p., 1990.
Web.
Lewis, Paul S. Multichannel signal enhancement. United States.
Lewis, Paul S. Mon .
"Multichannel signal enhancement". United States. https://www.osti.gov/servlets/purl/867483.
@article{osti_867483,
title = {Multichannel signal enhancement},
author = {Lewis, Paul S},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1990},
month = {Mon Jan 01 00:00:00 EST 1990}
}
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