Sökning: onr:"swepub:oai:DiVA.org:kth-343688" > Secure State Estima...
Fältnamn | Indikatorer | Metadata |
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000 | 03659naa a2200397 4500 | |
001 | oai:DiVA.org:kth-343688 | |
003 | SwePub | |
008 | 240222s2023 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3436882 URI |
024 | 7 | a https://doi.org/10.1016/j.ifacol.2023.10.15802 DOI |
040 | a (SwePub)kth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a kon2 swepub-publicationtype |
100 | 1 | a Li, Zishuou Department of Automation, Tsinghua University, Beijing, 100084, China4 aut |
245 | 1 0 | a Secure State Estimation against Sparse Attacks on a Time-varying Set of Sensors |
264 | 1 | b Elsevier BV,c 2023 |
338 | a print2 rdacarrier | |
500 | a QC 20240223Part of ISBN 9781713872344 | |
520 | a This paper studies the problem of secure state estimation of a linear time-invariant (LTI) system with bounded noise in the presence of sparse attacks on an unknown, time-varying set of sensors. At each time, the attacker has the freedom to choose an arbitrary set of no more than p sensors and manipulate their measurements without restraint. To this end, we propose a secure state estimation scheme and guarantee a bounded estimation error irrespective of the attack signals subject to 2p-sparse observability and a mild, technical assumption that the system matrix has no degenerate eigenvalues. The proposed scheme comprises a design of decentralized observers for each sensor based on the local observable subspace decomposition. At each time step, the local estimates of sensors are fused by a median operator to obtain a secure estimation, which is then followed by a local detection-and-resetting process of the decentralized observers. The estimation error is shown to be upper-bounded by a constant which is determined only by the system parameters and noise magnitudes. Moreover, we design the detector threshold to ensure that the benign sensors never trigger the detector. The efficacy of the proposed algorithm is demonstrated by its application on a benchmark example of IEEE 14-bus system. We show that our proposed scheme can effectively tolerate sparse attacks on an unknown set of sensors, ensuring a bounded estimation error and effectively detecting and resetting the attacked sensors. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Elektroteknik och elektronikx Reglerteknik0 (SwePub)202022 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Electrical Engineering, Electronic Engineering, Information Engineeringx Control Engineering0 (SwePub)202022 hsv//eng |
653 | a Design of fault tolerant/reliable systems | |
653 | a Estimation | |
653 | a Estimation and filtering | |
653 | a fault detection | |
700 | 1 | a Niazi, Muhammad Umar B.u KTH,Reglerteknik,Laboratory for Information and Decision Systems, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, 77 Massachusetts Avenue,Digital Futures4 aut0 (Swepub:kth)u1hzqtz7 |
700 | 1 | a Liu, Changxinu KTH,Reglerteknik,Digital Futures4 aut0 (Swepub:kth)u1xs2gr3 |
700 | 1 | a Mo, Yilinu Department of Automation, Tsinghua University, Beijing, 100084, China4 aut |
700 | 1 | a Johansson, Karl H.,d 1967-u KTH,Reglerteknik,Digital Futures4 aut0 (Swepub:kth)u1h0d9k2 |
710 | 2 | a Department of Automation, Tsinghua University, Beijing, 100084, Chinab Reglerteknik4 org |
773 | 0 | t IFAC-PapersOnLined : Elsevier BVg , s. 270-275q <270-275 |
856 | 4 | u https://doi.org/10.1016/j.ifacol.2023.10.1580y Fulltext |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-343688 |
856 | 4 8 | u https://doi.org/10.1016/j.ifacol.2023.10.1580 |
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