Method for stable and accurate solution for an...

Details Method for stable and accurate solution for an... Method for stable and accurate solution for an...

2007-05-15

2007-05-15

Gutman, Mary (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

10397364

ABSTRACT:
A method for obtaining a stable and accurate solution for an ill-conditioned system of normal equations associated with digital Weiner filter for a time invariant system and/or an autoregressive operator of an autoregressive model. A time invariant stochastic model, uses a Gram_Schmidt process of orthonormalisation to condition the coefficient matrix, a singular matrix associated with such a system of normal equations, to an identity matrix. The observed output of the digital Weiner filter and/or autoregressive operator is defined as a time advanced version of the input. The method has application in situations where digitized data at smaller sampling intervals are made available.

REFERENCES:
patent: 5287529 (1994-02-01), Pentland
patent: 5717621 (1998-02-01), Gupta et al.
patent: 5864786 (1999-01-01), Jericevic
patent: 6879735 (2005-04-01), Portniaguine et al.
patent: 2002/0065664 (2002-05-01), Witzgall et al.

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