EntityQ818544· pop 12· linked from 45 articlesstate observerSign in to savesystem that provides an estimate of the internal state of a given real system, from measurements of the input and output of the real systemConnectionssign functionEntityInternational Standard Book NumberEntitydigital object identifierEntityInternational Standard Serial NumberEntitydiscrete mathematicsEntitycontinuous functionEntitybibcodeEntityinput/outputEntityvector fieldEntityuncertaintyEntityphysical systemEntitylinear regressionEntitycontrol theoryEntitydiagonal matrixEntitynonlinear systemEntityQ22908627EntityKalman filterEntityestimationEntityHandle SystemEntityhypersurfaceEntityCategoriesClassical control theoryTime series