Traditional hardware error detection methods based on linear codes make assumptions about the typical or expected errors and faults and concentrate the detection power towards the expected errors and faults. These traditional methods are not optimal for the protection of hardware implementations of cryptographic hardware against fault attacks. An adversary performing a fault-based attack can be...

Problem statement: Fault reconstruction scheme is different from the majority of Fault Detection and Isolation (FDI) methods described in the literature in the sense that it not only detects and isolates the fault, but provides an estimate of the fault. This approach is very useful for incipient faults and slow drifts, which are very difficult to detect. Also, this approach is very useful for F...

In this paper we describe an application of a robust identification approach to a turbofan engine. The approach combines classical time-data system identification via prediction error models and the so-called model error model theory. The model error model approach provides guidelines for the characterization of the model uncertainty stemming from the nominal system identification and fits natu...

The goal of this work is to present some theoretical results which can be used for increasing fault sensitivity of a detection scheme, without sacrificing robustness. Robustness against modeling uncertainties and fault sensitivity are two contradicting demands, and typically, one is achieved at the expense of the other. The main reason for this trade-off is the use of a worst case scenario boun...

Wireless ad hoc networks are becoming an increasingly common platform for bringing computation to environments with minimal infrastructure. Increasingly, applications require robust fault-tolerance guarantees, despite a challenging network environment. In this paper, we introduce a new middleware framework for wireless ad hoc networks to aid the development of robust algorithms. Our framework i...

A recent study shows that a given hierarchical decentralized control system architecture may be suitable for autonomous coordination of fault-tolerant control (FTC) in a network of distributed and interconnected subsystems. This paper focuses on the development of a robust Fault Detection and Isolation (FDI) strategy for this Network Control System (NCS) FTC problem. By using a robust form of t...

Problem statement: The growing demand for reliability, maintainability and survivability in industrial processes has drawn significant research in fault detection and fault tolerant control domain. A fault is usually defined as an unexpected change in a system, such as component malfunction and variations in operating condition, which tends to degrade the overall system performance. The purpose...