US 5,189,590 A · Closed-loop multi-sensor control system and method

Abstract

A closed-loop multi-sensor control system for controlling ship signatures positions away from local sensors used to direct local signatures controllers by controlling a field variable signature through local onboard sensors and active coil elements by determining a transfer matrix between discrete local and midrange field values, said determination being based upon virtual sources, M, and control parameters (coil currents) I wherein: M=(M.sub.X1,M.sub.Y.sup.1,M.sub.Z1,M.sub.Z2. . . M.sub.ZX) and I=(I.sub.1,I.sub.2, . . . I.sub.M), wherein local signatures H=A.sub.H I.sub.O +B.sub.H M and wherein midrange signatures K=A.sub.K I+B.sub.H M and wherein the ultimate solution for the coil currents for optimum degaussing is: I=-(A.sub.K.sup.T A.sub.K).sup.-1 A.sub.K.sup.T B.sub.K (B.sub.H.sup.T B.sub.H)..sup.1 B.sub.H.sup.T (H-A.sub.H I.sub.O)=G H.sub.eff

Claims3

Dependent claims

A closed-loop matrix method for controlling magnetic signatures surrounding a three dimensional space at distances away from a centerline of the space exceeding the distances between degaussing coils within the space comprising:

providing a plurality of degaussing coils within the space for degaussing;
providing a plurality of sensors within the space for measuring magnetic state signatures;
measuring simultaneously internal space signatures and signatures external to the space for preparing coil and magnetic state signature matrices;
determining a control matrix, for the coil currents from internal space magnetic signatures;
and
controlling the coil and magnetic state signature by repeatedly determining the coil currents from internal space signatures using the control matrix for control purposes.

3 more elements

Dependencies are inferred from the claim text.

Closed-loop multi-sensor control system and method

Life of this patent

Closed-loop multi-sensor control system and method

Life of this patent

Abstract

Claims3