简介:Inthispaper,theprincipleofH∞filteringisdiscussedandH∞filterisconstructed,whichisusedintheinitialalignmentofthestrapdowninertialnavigationsystems(SINS).TheerrormodelofSINSisderived.ByutilizingconstructedH∞filter,thefilteringcalculationtothatsystemhasbeenconducted.Thesimulationresultsofthemisalignmentanglearegivenundertheconditionofunknownnoises.TheresultsshowthattheprocessofalignmentwithH∞filterismuchfasterandwithexcellentrobustness.
简介:本文探讨了如何利用AutoCAD2000中的'块'、'多文档设计环境'以及'AutoCAD2000设计中心'等功能进行方便快捷的设计.