Communications – electrical: acoustic wave systems and devices – Receiver circuitry
Patent
1992-01-27
1992-09-01
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Receiver circuitry
367901, 364517, G01S 1566
Patent
active
051445956
ABSTRACT:
The adaptive statistical filter providing improved performance target mot analysis noise discrimination of the present invention includes a bank of parallel Kalman filters. Each filter estimates a statistic vector of specific order, which in the exemplary third order bank of filters of the preferred embodiment, respectively constitute coefficients of a constant, linear and quadratic fit. In addition, each filter provides a sum-of-squares residuals performance index. A sequential comparator is disclosed that performs a likelihood ratio test performed pairwise for a given model order and the next lowest, which indicates whether the tested model orders provide significant information above the next model order. The optimum model order is selected based on testing the highest model orders. A robust, unbiased estimate of minimal rank for information retention providing computational efficiency and improved performance noise discrimination is therewith accomplished.
REFERENCES:
patent: 5067096 (1991-11-01), Olson et al.
Graham Marcus L.
O'Brien Francis J.
Lall Prithvi C.
McGowan Michael J.
Oglo Michael F.
Pihulic Daniel T.
The United States of America as represented by the Secretary of
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