This research report focuses on the use of unknown input observers for detection and isolation of actuator and effector faults with control reconfiguration in overactuated systems. The proposed approach consists in tuning the observer parameters in order to make the filters decoupled from faults affecting selected groups of actuators or effectors. The control allocation actively uses input redu...

Multiple Description Coding (MDC) has proven to be a powerful tool for joint source/channel coding applications. Indeed, MDC offers the possibility of controlling easily the amount of redundancy introduced in the transmitted signal while maintaining good quality decoding even when the channel is noiseless. However, to our knowledge, few work have been dedicated to the tuning of the redundancy p...

A goal of all instruction is to efficiently allocate time spent teaching -- balancing redundancy that enhances learning with redundancy that is irrelevant to increasing student understanding. Efficient allocation of time allows the instructor to present additional material and go into more detail about the information being presented. Here we borrow laboratory research on concept formation and ...

We propose an embedded processor-based built-in self-repair (BISR) design for embedded memories. In the proposed design we reuse the embedded processor that can be found on almost every system-on-chip (SOC) product, in addition to many distinct features. By reusing the embedded processor, the controller and redundancy analysis circuit of a typical BISR design can be removed. Also, the test algo...

System availability is an important subject in the design field of industrial system as the system structure becomes more complicated. While improving the system’s reliability, the cost is also on the upswing. The availability is increased by a redundancy system. Redundancy Allocation Problem (RAP) of a series-parallel system is traditionally resolved by experienced system designers. We propose...

We consider the problem of efficient real time video transmission over UMTS channels. Such a problem involves good compression rates and effectiveness in presence of channel failures. We propose a balanced MDC scheme for 3D scan-based DWT video coding. This MDC includes an efficient bit allocation procedure that dispatches the source video redundancy between the different channels[1, 2]. We pro...

Peer-to-peer architectures can be used to build a robust, fault tolerant infrastructure for important services. One example is a peer-to-peer data replication system, in which digital collections are protected from failure by being replicated at multiple peers. We argue that such community-based redundancy, in which multiple sites contribute resources to build a fault-tolerant system, is an imp...

The clinical notes in a given patient record contain much redundancy, in large part due to clinicians' documentation habit of copying from previous notes in the record and pasting into a new note. Previous work has shown that this redundancy has a negative impact on the quality of text mining and topic modeling in particular. In this paper we describe a novel variant of Latent Dirichlet Allocat...

With the huge global and wide range of attention placed upon quality, promoting and optimize the reliability of the products during the design process has turned out to be a high priority. In this study, the researcher have adopted one of the existing models in the reliability science and propose a bi-objective model for redundancy allocation in the series-parallel systems in accordance with th...