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Aiming at the problem that the fault feature information of the Fan bearing is often overwhelmed by the strong background noise; this paper proposes to use the Improved Mathematical Morphological Undecimated Wavelet to extract fault characteristics. M Mathematical Morphological Undecimated Wavelet has morphological filtering characteristics and wavelet decomposition of multi-resolution characteristics...
Recently, the optical spatial modulation (OSM) technique has been proposed for visible light communication (VLC). However, its design flexibility is limited by the fact that the number of transmitters has to be a power of two, given that the number of bits mapped by the transmit antenna index at each time slot is required to be an integer. In the paper, to break the limitation on the required number...
Plenty of existed tactile displays in the literature had limited application due to their small effective contact area of end-effector or touched surface. In this paper, a tactile display with large-effective contact area for texture perception was proposed. It could create texture sensation within an active area of 194mm × 100mm based on squeeze film effect. Furthermore, this tactile display was...
A monolithic integrated switched filter bank has been designed to realize the working center frequency tunable in S-band. The switched filter bank was designed using 8 eight-order step impedance resonators (SIR) band-pass filters and Microelectromechanical Systems(MEMS) switched circuit, combined with low temperature co-fired ceramic (LTCC) technology for monolithic integrated design. The monolithic...
Based on the Silicon-based IPD(Integrated Passive Device) technology, an experiment on IPD microstrips is presented. Some metal materials which are used in semiconductor press are applied in IPD microstrips and the microstrips are optimized for 50Ω impedance matching for better signal transmission. The experiment is carried by HFSS simulated software for transmission status from DC-30GHz and the reason...
In this paper, a compact third-order bandpass filter with Chebyshev characteristic is designed by using integrated passive device (IPD) technology. The filter is capacitively coupled and consists of three parallel resonators. The simulation results show that the center of the filter Frequency of 1700MHz, bandwidth of 500MHz, the volume is only 1.0mm*0.5mm*0.3mm.
This paper investigates the channel parameter estimation algorithm by using the Space-Alternating Generalized Expectation-Maximization (SAGE). Two strategies, i.e., parallel interference cancelation (PIC) and serial interference cancelation (SIC), are implemented and validated in the simulated SV channel model. Based on the massive MIMO channel measurement results in an indoor hall scenario in the...
Beamforming is a signal processing technique in which multiple antennas are used to weight the signals so that they can be added constructively in the desired direction, and destructively in the interference direction. In this paper, adaptive beamforming based on subband decomposition structure is investigated in smart antenna arrays and the performance of the proposed adaptive beamforming scheme...
In this paper, a control system of upper limb rehabilitation robot based on LabVIEW was proposed, and the structure of the control system was also provided. Through using the LabVIEW, the system had a good software interface and control effect. In addition, with the communication protocol between the robot and LabVIEW, the system can realize the real-time transmission of control signal and control...
Exoskeleton upper limb rehabilitation robots are more and more applied to help hemiplegic patients to implement rehabilitation training, which makes up the shortage of rehabilitation only depend on doctors. Aiming at the training of patients' hand exercise, in this paper a kind of human-computer interaction of exoskeleton hand rehabilitation robots based on LabVIEW system was proposed, which was mainly...
In this paper, we propose a high accuracy multi-chain time interval measurement (TIM) technique by employing the dedicated carry chain of FPGA. According to the principle of delay chain time to digital converter (TDC), the proposed method is realized by connecting the selectors inside the slices. The resolution of the delay chain method is limited by the time delay of one delay unit. To break through...
Detrimental nanoscale gas bubble defects seriously hinder the practical applications of nanoimprint lithography in manufacturing of nanoelectronic devices. Here, we present a nanofluidics study on the formation and evolution mechanisms of nanoscale bubble defects in dispensing-based UV-curable nanoimprint lithography processes. Our work indicates that the formation of nanoscale bubble defects is mainly...
Signal software for high-speed railways is safetycritical, controlling communications between trains, tracks, stations, and signals. It is necessary to test railway signal software rigorously. However, ad-hoc approaches still dominate in practice. We proposed a hybrid approach that uses combinatorial testing (CT) and model-based testing (MBT). We applied this systematic approach to testing track circuit...
With the economic globalization, urban sustainableinnovation ability has become one of the important factor ofurban comprehensive competitiveness. Urban sustainableinnovation ability is referred to as an ability that a citytransforms the various factors such as information into newproducts, new services, which is also directly related to thesustainable development driving force and long-termcompetitiveness...
Fuzzy extractor provides key generation from biometrics and other noisy data. The generated key is seamlessly usable for any cryptographic applications because its information entropy is sufficient for security. Biometric authentication offers natural and passwordless user authentication in various systems where fuzzy extractors can be used for biometric information security. Typically, a biometric...
In this paper, the falsification of predefined requirements of a control system is formulated as an optimal control problem. We propose a framework that can be used to design input trajectories such that multiple requirements can be falsified by a single test trajectory. Furthermore, an algorithm based on gradient techniques is proposed for unknown nonlinear systems. A numerical example, treating...
In this paper, we propose to extract robust video descriptor by training deep neural network to automatically capture the intrinsic visual characteristics of digital video. More specifically, we first train a conditional generative model to capture the spatio-temporal correlations among visual contents and represent them as an intermediate descriptor. A nonlinear encoder, with the functions of dimension...
Fault localization techniques have been applied to database and data-centric applications that use SQL or SQL-based languages. However, existing techniques can only identify the SQL statements that have faults, but not determine the precise location of the faults within SQL statements. Since SQL statements can be rather complex, programmers are still left with a difficult repair chore. We propose...
A track circuit is a critical component of a modern railway system. The circuit is used to detect the absence of a train on rail tracks and produce corresponding control signals. A railway track has many block sections, each of which has a separate track circuit device. A track circuit receiver analyzes signals sent from a track circuit sender and produces a signal to control a relay. When the train...
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
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