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A robust fault estimation (FE) method is proposed for Lipschitz nonlinear Markov jump system (MJS) based on unknown input observer (UIO). Firstly, the robust UIO is designed under the unknown input and output noise. Then the state estimation error system is established by combining the observer estimated states with real system states. When the error system is stable, the system states and the actuator...
This paper studies the static output-feedback control in a class of linear networked control systems and an improved adaptive event-triggered strategy is designed to save the limited network bandwidth. Different from the existent methods, the proposed event-triggered strategy can relax the assumption of the prior works that the threshold of event-triggered communication scheme is a preselected constant...
We employ the generalized Huygens principle to design and fabricate highly transparent dielectric metasurfaces for complex wavefront manipulation with 99% polarization conversion and 99% diffraction efficiencies and broadband operation at telecom wavelengths.
A mass sensor based on split-nanobeam optomechanical crystal cavity with effective motion mass below 10fg and mechanical frequency exceed 10GHz is proposed. Based on our simulation, exceed 10MHz/fg detection sensitivity can be realized.
A current-fed soft-switching three-phase dc-dc converter suitable for high-power high-voltage-gain applications is presented in this paper. Proposed converter consists of constant-current-fed three-phase inverting bridge with reverse-blocking switches, primary-Y-connected three-phase transformer and voltage-doubler rectifier modules at the output. The rectifier modules are connected in series at the...
Foreground map evaluation is crucial for gauging the progress of object segmentation algorithms, in particular in the field of salient object detection where the purpose is to accurately detect and segment the most salient object in a scene. Several widely-used measures such as Area Under the Curve (AUC), Average Precision (AP) and the recently proposed F W/B (Fbw) have been used to evaluate the similarity...
Mobile crowd sensing emerges as a new paradigm which takes advantage of the pervasive sensor-embedded smartphones to collect data efficiently. Many incentive mechanisms for mobile crowd sensing have been proposed. However, none of them takes into consideration the cooperative compatibility of users for multiple cooperative tasks. In this paper, we design truthful incentive mechanisms to minimize the...
A novel edge termination, referred to as etched 3-step junction termination extension with 4-space-modulated buffer trench regions (3S-4SMBT-JTE), is presented for ultrahigh voltage silicon carbide (SiC) power devices. In comparison with the traditional 3S-JTE, the 3S-4SMBT-JTE shows greatly reduced peak electric field (EF) around the corners and edges of the device, resulting in a superior breakdown...
The design of adaptive sliding mode control is studied for a class of Markov jump systems(MJSs) with transition rate uncertainties and the partial failures of the actuators. Firstly, the mathematical model of MJSs with the uncertainty of the transition rate and the partial failure of the actuator is established. Secondly, the sliding surface is proposed by combining linear matrix inequality (LMI)...
This paper discusses the problem of angle estimation for bistatic multiple-input multiple-output (MIMO) radar in the presence of spatial colored noise. The spatial colored noise is eliminated by exploiting the temporal uncorrelated property. Thereafter, a propagator method is considered for joint direction of departure (DOD) and direction-of-arrival (DOA) estimation. The proposed method does not require...
In this work, a typical two-dimensional (2D) material WS2 on a dielectric substrate is measured by terahertz time-domain spectroscopy (THz-TDS) and analyzed using the Drude conductivity model. The transmittance and sheet conductivity of monolayer WS2 have been obtained. This technology can be used to measure the thin film 2D materials in THz frequency regions.
The terahertz absorption spectra of BSA (Bovine Serum Albumin) in aqueous solution were measured under different pH values from 2.2 to 8. The absorption spectra were analyzed using the two-dimensional correlation spectroscopy (2DCOS). By comparing the cross peaks corresponding to the different pH values, it can be obtained that the conformation is related to the pH condition.
Providing sensory feedback for myoelectric prosthetic users can not only increase the manipulation ability but can also introduce a feeling of embodiment. Previous research has demonstrated the feasibility of providing mechanotactile or vibrotactile feedback on the remaining stumps of amputees. To improve the recognition rate and reduce mental work load when identifying stimulation patterns, we propose...
At present, the nonlinear load of axle box bearing and the spatial coupling relationship of locomotive vehicle are seldom considered in the dynamic modeling of locomotive wheel rail system. Therefore, based on the time-varying nonlinear contact load of axle box bearing, the dynamic model of locomotive wheel space coupling is established. Finally, through the test-bed of locomotive wheelset test verifies...
In this work, a typical two-dimensional (2D) material MoS2 on a dielectric substrate is measured by terahertz time-domain spectroscopy (THz-TDS) and analyzed using the Drude model. The transmittance and sheet conductivity of monolayer MoS2 have been obtained. This technology can be used to measure the thin film 2D materials in THz frequency regions.
Graph algorithms such as breadth-first search (BFS) have been gaining ever-increasing importance in the era of Big Data. However, the memory bandwidth remains the key performance bottleneck for graph processing. To address this problem, we utilize processing-in-memory (PIM), combined with non-volatile metal-oxide resistive random access memory (ReRAM), to improve the performance of both computation...
This paper proposes a new filter design optimized for GNSS attitude determination applications using low cost devices. The filter contains all relevant constraints and observations, including double differenced carrier phase and code observations along with MEMS-IMU observations. Benefited from the unified treatment, the priori information is well used during the resolution of double differenced GNSS...
Ising model was originally designed to address the interactions among the atoms inside magnetic field. As it can fit into many biological problems where adjacent entities can interact with each other, Ising model is geting more and more popular. with its help, people may have a deeper and better understanding of associations between two related entities like genes and their products. However, it may...
VAR (Vector Auto-regressive) model is a kind of commonly used econometric-model. It is used to estimate the dynamic relationship of the endogenous variables without any prior constraints. Since VAR is one of the most easily operated models to deal with the analysis and prediction of multiple related economic indicators, more and more attention has been paid by economists in two decades. However, with...
Summary form only give, as follows. Provides an abstract of the keynote presentation and a brief professional biography of the presenter. The complete presentation was not made available for publication as part of the conference proceedings. Network Function Virtualization (NFV) is an initiative driven by the largest service providers (SP) to increase the use of virtualization and integrate intelligence...
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