Detection and diagnosis of changes in the eigenstructure of nonstationary multivariable systems

✍ Scribed by Michèle Basseville; Albert Benveniste; Georges Moustakides; Anne Rougée

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 932 KB
• Volume: 23
• Category: Article
• ISSN: 0005-1098
• DOI: 10.1016/0005-1098(87)90077-x

✦ Synopsis

Even when the state norse of a multwarmble system is unknown and nonstatmnary, tt ts posstble to momtor changes m tts state transmon matrix w~th the atd of new stat~sttcal tests closely related to the ~denttficatmn method statable m such a sztuatmn Key Words--Ttme-varylng multlvarlable systems, failure detectmn, dmgnosls, wbratmn monitoring Abstract--The two problems of detection and dmgnosls of changes in the state transmon matrix of a multwanable system wRh nonstat~onary unknown state no~se are addressed New instrumental tests are derived and shown to be numerically powerful, even for small changes The apphcatmn to wbratmn momtormg of offshore platforms is described