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A class of information systems composed of backbone networks and access networks is very popular. According to the complexity and organization forms of the class of information systems, two evolution formation mechanisms of the systems are constructed based on complex network theory. One of the mechanisms uses pre-planning and random access strategies, and the other uses pre-planning and preferential...
Recently, the optimal transceiver design in multiuser multiple-input-multiple-output (MIMO) relay systems has attracted great attention. Unlike most existing works, we take the channel correlation and estimation errors into account, and jointly optimize the relay and receiver matrix in multiuser MIMO relay systems. First, the mean-square error (MSE) expression at receiver is derived, and a minimum...
Contactless palmprint recognition systems alleviate the concerns on personal hygiene, acquisition flexibility, etc. Unfortunately, the preprocessing of contactless palmprint image faces several severe challenges, including unconstrained hand placement, complex background, light interference, etc. This paper proposes logical conjunction of triple-perpendicular-directional translation residual (TPDTR)...
This paper investigates the influence of metal spacing and poly-crystalline silicon gate and silicide technology on single event transients (SETs) occurring in pulsed laser irradiated test patterns based on 0.18 μm partially depleted silicon-on-insulator complementary-metal-oxide-semiconductor technology. Laser-induced transients were measured and analyzed in detail, including SET rise time, fall...
As more and more distributed generations are connected into the distributed network, the traditional fault location methods are not accurate or suitable. A method of fault location for distribution network based on voltage change was proposed. The method has two steps: firstly, calculating the line group on which the fault may occur by the error index obtained from voltage change; secondly finding...
Traditional GPS receiver uses the digital Costas loop for carrier tracking, which will breakdown under low SNR environment. High-sensitivity receiver is designed using FFT based tracking loop, this method could track GPS signal as weak as -163dBm, but it fails rapidly in high dynamic scene. Aided by Inertial Navigation System (INS) solutions, dynamics of the GPS receiver is estimated and removed,...
The paper proposed a 3-DoF bicycle model, that considering the longitudinal acceleration or deceleration motion, the lateral motion and the yaw motion of the vehicle. A simplified piecewise tire model is proposed to improve the precise of the tire force. The bicycle model uses the wheel rolling speed information from the real car that is usually used in the ABS or other active safety devices. The...
Distribution of data stream is always changed in the real world. This problem is usually defined as concept drift [1]. The state-of-the-art decision tree classification method CVFDT[2] can solve the concept drift problem well, but the efficiency is debased because of its general method of handling instances in CVFDT without considering the types of concept drift. In this paper, an algorithm called...
Web access to sequence data mining to help improve the quality of Web access, the sequence is a difficult problem in data mining, the prevalence of classic sequential algorithm and storage space overhead is too large defects. Web access sequence mining algorithm based on Markov chain can be found through less computation requests a web page. And for the design of the site, and achieved good results...
A 3D stacked network-on-chip (NOC) promises the integration of a large number of cores in a many-core system-on-chip (SOC). The NOC can be used to test the embedded cores in such SOCs, whereby the added cost of dedicated test-access hardware can be avoided. However, a potential problem associated with a 3D NOC-based test access is the emergence of hotspots due to stacking and the high toggle rates...
This paper presents a benchmark consisting of 11 queries based on WFS standards formulated by OGC. The purpose of our study is to provide a reference standard, when the performance test is conducted on a geospatial web service platform which supports OGC WFS. This benchmark has the novel characteristic that it uses geospatial datasets and queries that are representative of WFS. We selected GeoServer...
We present a low-latency, small-form-factor optical link designed for the high-luminosity LHC experiments in which the latency and form factor are critical. The optical link on the transmitter side is composed of a transmitter ASIC and a custom-made optical transmitter module. The transmitter ASIC includes an encoder and a serializer. Two serializer ASIC prototypes, operating at 5 and 8 Gbps per channel...
The effects of temperature on the single-event upset (SEU) response of commercial and radiation-hardened SRAMs are investigated by experiment. The results showed that the SEU sensitivity relied on the temperature during the testing. However, it was also observed the amplitude of energy deposition of ions in sensitive volume of SRAM devices is able to affect the SEU sensitivity. When the deposited...
N-gram language models are useful for modeling the local dependencies of word occurrences but not for capturing global word dependencies. When the window size n is limited, the n-gram is weak in terms of capturing long distance dependencies. Long-distance Dependency information has long been proven useful in language model. However, the improved performance of long-distance LMs over conventional n-gram...
One of the most critical issues in electronic industry is the thermal management of electronic devices, such as high-power light-emitting diodes (LEDs), high density integrated circuit(IC). Currently, the major limitation for the development of such devices is due to the lack of an efficient technique to remove heat in a narrow space. Micro heat pipes (MHPs) using MEMS technique can solve this problem...
Mobile broadband interactive satellite communication system is of great interest in both research and development field. However, the conventional strict layered protocol stack architecture and the standard TCP version perform poorly over satellite link. In this paper, we propose a comprehensive cross-layer TCP optimization architecture while considering the main factors that affect the TCP performance...
Remaining useful life (RUL) estimation is an important part in modern prognostic and health management (PHM) approach. In this paper, a particular prognostic named similarity-based RUL estimation is proposed. In some complex condition, typical methods will perform inefficient, and in engineering application background, some traditional methods may be hard implemented. On the other hand, similarity-based...
Reliability analysis is one of the important foundations in engineering to optimize system performance. A multi-unit system with one dominant unit and numerous secondary units is proposed through practical problems, in which, the secondary units form a m-out-of-n voting system, with load-sharing units and time-varying failure. Furthermore, the type-I failure interaction exists between the dominant...
Vast amount of information is accumulated in many forms during the usage and maintenance of new equipments under information circumstance. The method of data mining is presented in this paper to take full advantage of information and increase scientific decision level of equipment maintenance management. The method includes maintenance information structure analysis, data collection, data coordination,...
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