Boots – shoes – and leggings
Patent
1994-09-23
1996-12-03
Tung, Kee Mei
Boots, shoes, and leggings
36472407, 36472419, 381 92, 381 94, G06F 1710
Patent
active
055814956
ABSTRACT:
Broadband coherent and incoherent interfering signals (jammers) are suppressed by using differencing and summing operations in an adaptive signal processing array composed of a plurality of signal detectors. A number of variable weight adaptive filters, equal to or greater than the number of jammers, are applied to all but one of the difference signals. The weighted difference signals are summed and subtracted from the remaining delayed difference signal for processing by an unconstrained adaptive algorithm to adjust the variable weights of the filters. The plurality of detector signals are also grouped by overlapping summing operations to produce summed signals for which all but one are applied to simple filters with the same weighting. These weighted summed signals are themselves summed and subtracted from the remaining delayed summed signal for delivery to a conditioning filter to recover the undistorted desired (target) signal. The differencing operations minimize the number of variable weight adaptive filters required, and provide pole cancellation in the mathematical description of the weighting filters so that the number of weights in the variable weight adaptive filters are also minimized. The summing operations minimize detector thermal noise and provide for the control of beam shape.
REFERENCES:
patent: 3109066 (1963-10-01), David
patent: 4641259 (1987-02-01), Shan et al.
patent: 4802227 (1989-01-01), Elko et al.
patent: 4956867 (1990-09-01), Zurek et al.
patent: 5309378 (1994-05-01), Beicrle
Frost, "An Algorithm for Linearly Constrained Adaptive Array Processing" Proceedings of the IEEE vol. 60, No. 8, Aug. 1972 pp. 926-935.
Griffiths et al, "An Alternative Approach to Linearly Constrained Adaptive Beamforming" IEEE Trans. on Antennas & Propagation Jan. 1982 pp. 27-34.
Adkins Charles N.
Turtora John J.
Tung Kee Mei
United States of America
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