Sperry Corporation

Richard W Harris

Glen D Rattlingourd

Frank A Bishop

A very rapidly converging adaptive filter which uses a variable scale factor for each weight of the filter. The value of the variable scale factor is chosen for each iteration and is based upon the sign changes of the incremental weight change. The variable scale factor exhibits large values when no sign changes occur and smaller values when sign changes occur. The new filter provides considerable improvement in increase of convergence rate and decrease in residual errors even in the presence of heavy noise while requiring only a modest increase in hardware.

MSE variable step adaptive filter

A method and apparatus for eliminating narrow band noise and interference from a wide band signal while maintaining the wide band signal substantially intact.

Growing community of inventors

Bountiful, UT, United States of America

Richard W Harris