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Sufficient conditions for strong state detectability of the system and exponential convergence of the observer are drawn in terms of measurement locations and system parameters. The approach is illustrated with two case studies: (i) an unstable heat equation, and (ii) a diffusion-convection-reaction system with multiple steady-state attractor profiles.<\/jats:p>","DOI":"10.1515\/auto-2018-0053","type":"journal-article","created":{"date-parts":[[2018,7,14]],"date-time":"2018-07-14T17:27:38Z","timestamp":1531589258000},"page":"548-557","source":"Crossref","is-referenced-by-count":7,"title":["An unknown input observer for a class of diffusion-convection-reaction systems"],"prefix":"10.1515","volume":"66","author":[{"given":"Alexander","family":"Schaum","sequence":"first","affiliation":[{"name":"Chair of Automatic Control , Kiel University , Kiel , Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2018,7,4]]},"reference":[{"key":"2023033109481643962_j_auto-2018-0053_ref_001_w2aab3b7b5b1b6b1ab1b7b1Aa","doi-asserted-by":"crossref","unstructured":"R.\u2009F. Curtain and H. 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