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This paper investigates a consensus problem of the fractional version of second-order system with communication delay under both directed and undirected topologies. By applying the frequency domain method, a sufficient condition is given to ensure the fractional version of second-order consensus facing communication delays. It is proof that fractional version of second-order consensus can be reached...
An integral equation with non-conformal and non-overlapping domain decomposition method has aroused wide interest in the engineering community. The contribution of this paper is twofold: (I) In the framework of IE-DDM, phase-extracted (PE) basis function is employed to reduce the required number of unknowns in the large and smooth sub-domain. (II) A reverse operation self-consistent evaluation (ROSE)...
With the rapid development of the Internet, network review information shows explosive growth. How to make an accurate analysis of these web comments has become an important issue in the research of network public opinion. In this work, a traditional dictionary based algorithm is adopted to analyze text sentiment of these comments. A deep learning method is proposed to analyze the network public sentiment...
The Arbitrary Lagrangian-Eulerian (ALE) method is used in a variety of engineering and scientific applications for enabling multi-physics simulations. Unfortunately, the ALE method can suffer from simulation failures that require users to adjust parameters iteratively in order to complete a simulation. In this paper, we present a supervised learning framework for predicting conditions leading to simulation...
In this paper, a non-conformal multiple-traces Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) method is developed for solving electromagnetic (EM) scattering from dielectric objects. Different from traditional single trace PMCHWT (ST-PMCHWT) method, the non-conformal multiple-trace PMCHWT (MT-PMCHWT) method discrete the surface unknowns with two pair of non-conformal meshes (exterior, interior)....
Multi-level per cell (MLC) /Triple-Level per cell (TLC) technique significantly improves storage density with low cost increases, which stores more than one bit per cell, but also drastically decreases reliability in NAND flash memory. As the bit number per cell increases, correspondingly cell-to-cell interference (CCI) becomes the major challenge for NAND flash memory technology scaling. Recently,...
In this paper, we propose a hybrid symbol mapping scheme, which can be extended to any coded modulation systems with non-binary LDPC coding and high-order modulation. For a given configuration of GF(2p) LDPC code and 2q-QAM signaling, we introduce a bit interleaving pattern for a short block across several coded or modulated symbols, where the interleaved bit indices are allocated according to the...
This paper proposes a full-featured Verification Intellectual Property (VIP) which can be used in functional verification at transaction level. The VIP includes a gold testcase set, a hierarchical testbench and a functional model. Firstly, the natural language specification is quantified and converted to the structured specification models. Secondly, the models are transformed into the codes of testcase...
Motivated by reduction of computational complexity, this work develops a pipelined adaptive filter architecture using the sign-error least mean square (SELMS) algorithm. The proposed algorithm was implemented with less than half the amount of calculation consumed for the conventional architectures. Besides, the proposed designs derived by retiming technique and with low latency also provide a faster...
This work present a new aggregation procedure to improve the efficiency of the Nested Complex Source Beam (NCSB) method. The procedure is based on the application of the singular value decomposition (SVD) to the complex source beams (CSBs) aggregation matrices. The matrices, which represent the CSBs relationship between two adjacent levels, are decomposed into new combinations of the original CSBs...
Visible light communication (VLC) is considered as a potential candidate of five generation (5G) technologies and thus attracts increasing research interest recently. Optical orthogonal frequency division multiplexing (O-OFDM) has been proposed for VLC systems to eliminate the multi-path interference, while also facilitating frequency domain equalisation (FDE). In comparison to conventional radio...
In this paper, we propose a construction method of quasi-cyclic low-density parity-check (QC-LDPC) codes with multi-weight circulants (MQC-LDPC codes) which is suitable for high-rate LDPC codes with moderate length. MQC-LDPC codes can achieve better degree distributions, Hamming weight distributions, and stopping set weight distributions than conventional QC-LDPC codes with single-weight circulants...
Challenges in bit-pattered magnetic recording (BPMR) include two-dimensional (2D) inter-symbol interference (ISI) constituted by both one-dimensional ISI and inter-track interference (ITI), and media noise arising from island position jitter (PJ) and island size fluctuations (SF) in both the down-track and cross-track directions. A LDPC code optimization approach is proposed for BPMR channel with...
It is challenging to develop an intelligent agent-based or robotic system to conduct long-term automatic health monitoring and robust efficient disease diagnosis as autonomous e-Carers in real-world applications. In this research, we aim to deal with such challenges by presenting an intelligent decision support system for skin lesion recognition as the initial step, which could be embedded into an...
Electron micrography (EM) is an important method for determining the three-dimensional (3D) structure of macromolecular complexes and biological specimens. But there are several limitations such as poor signal-to-noise, limitation on range of tilt angles and sub-region subject to electron exposure, unintentional movements of the specimen, with EM systems that make the reconstruction procedure a severely...
In order to deal with the challenge of modeling complex multilayer composite structures, various numerical methods have been proposed. For the multilayer dielectric/metallic composite objects, traditional method needs special test procedures at junctions to enforce the boundary conditions on the interfaces of different materials. The connect-region-modeling (CRM) method automatically enforces boundary...
This paper discusses the Alberta's experience of coordinating High Voltage Direct Current (HVDC) line operation with under-voltage Remedial Action Scheme (RAS). The integration of two 500 kV HVDC transmission projects in the Alberta Interconnected Electric System (AIES) has some impacts on AC system voltage recovery after clearing three phase faults. The resuming of power transfer on HVDC inverters...
This paper addressed the development of fast locally linear regression (LLR) algorithms to retrieve atmospheric temperature and humidity profiles from the measurements of Infrared Atmospheric Sounder (IRAS) on FengYun 3B (FY-3B), in which the matching samples were collected from IRAS/FY-3B measurements and AIRX2RET V5 product. Taking 2011 as example, first, the observation samples were obtained with...
In this paper, we present a novel nonlinear control scheme of three-phase pulse width modulation rectifier. The aim of this work is the application of the feedback linearization and sliding mode theory to the PWM converter. Firstly, the mathematical model of three-phase voltage source PWM rectifier in dq synchronous reference frames is established. The control system with double close-loops of outer...
This paper presents a master-slave force hybrid coordinated motion control method which is based on the model predictive control (MPC) algorithm. In the paper, the kinematics model of the dual 6-DOF arms is build. Six axis force sensors are installed at the ends of the two arms, the master arm adopts the position control method and the based on the model predictive control algorithm DMC theory force/position...
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