Multichannel signal enhancement

Patent · Tue Aug 07 04:00:00 EDT 1990

OSTI ID:6541177

Lewis, P S

This patent describes 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 magnetoenceph-alography, the mixed adaptive filter enables an evoked response to an auditory stimulus to be identified from only a single trial.

• Assignee: Dept. of Energy, Washington, DC (USA)
• Patent Number(s): A; US 4947480
• Application Number: PPN: US s 7-264722
• OSTI ID: 6541177
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
990200* -- Mathematics & Computers
ALGORITHMS
ARRAY PROCESSORS
COMMUNICATIONS
COMPUTER ARCHITECTURE
DIGITAL FILTERS
ELECTRONIC EQUIPMENT
EQUIPMENT
IMAGE PROCESSING
LEAST SQUARE FIT
MATHEMATICAL LOGIC
MAXIMUM-LIKELIHOOD FIT
MULTI-CHANNEL ANALYZERS
NUMERICAL SOLUTION
PARALLEL PROCESSING
PROCESSING
PROGRAMMING
PULSE ANALYZERS