Approximate solution of dense linear systems

Details Approximate solution of dense linear systems Approximate solution of dense linear systems

1997-12-01

1999-01-26

Barlow, John

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

364735, 36472501, 36472601, 36475402, 39580011, 702196, G06F 15347

Patent

active

058647864

ABSTRACT:
A physical signal is represented by a linear system. The linear system is transformed from the time and space domain to the frequency domain, generating a transformed system. The least significant portions in the transformed system are determined. The least significant portions are deleted from the transformed system, generating a smaller pruned system. The pruned system is solved in the frequency domain, generating a solution. The solution is inverse transformed from the frequency domain to the time and space domain, generating an approximation to the physical signal.

REFERENCES:
patent: 5253192 (1993-10-01), Tufts
patent: 5301342 (1994-04-01), Scott
patent: 5442569 (1995-08-01), Osano
patent: 5703799 (1997-12-01), Ohta

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