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Compressed Sensing Trilinear Model-based Angle Estimation for Bistatic MIMO radar

Xiaofei Zhang, Jianfeng Li, Ming Zhou, De Ben
In this paper, we address the transmit angle and receive angle estimation problem for a bistatic multiple-input multiple-output (MIMO) radar. This paper links MIMO radar angle estimation problem to the compressed sensing trilinear model. Exploiting this link, it derives a compressed sensing trilinear...

Improved Nonnegative Matrix Factorization Based Feature Selection for High Dimensional Data Analysis

Lincheng Jiang, Wentang Tan, Zhenwen Wang, Fengjing Yin, Bin Ge, Wendong Xiao
Feature selection has become the focus of research areas of applications with high dimensional data. Nonnegative matrix factorization (NMF) is a good method for dimensionality reduction but it can’t select the optimal feature subset for it’s a feature extraction method. In this paper, a two-step strategy...

The Application of Artificial Intelligence in Ocean Development : In the View of World Expo 2010

Yang Yu, Zhenxing Cheng
Under the background of global ocean development, artificial intelligence has increasing importance which urges the improvement of traditional research and exploration methods. Marine applications of artificial intelligence have been further practiced and expanded by Shanghai World Expo, which reflect...

Research and Application of Automated Testing Tool Based on STAF

Yu Shang, XiaoLi Zhang, YanBin Feng, Momo Li
To improve the efficiency of automated testing, reduce testing spending, This article brings out a new automation testing framework—WTAF, and automated regression testing is the focus of the study. First of all, we choose the open source automation framework —STAF for regression testing , And then utilize...

Compressive sensing-based angle estimation for MIMO radar with multiple snapshots

Jianfeng Li, Xiaofei Zhang, Tong Hu
The issue of angle estimation for multiple-input multiple-output (MIMO) radar is studied and an algorithm for the estimation based on compressive sensing with multiple snapshots is proposed. The dimension of received signal is reduced to make the computation burden lower, and then the noise sensitivity...

A novel Fingerprint Image Preprocessing Algorithm

Ming FU, Jun HUANG, Jun XU
Based on analyzing and experimenting a large number of the existing fingerprint image preprocessing algorithm, this paper presents a novel high-quality fingerprint image preprocessing algorithm. Taking full account of the inherent characteristics of the fingerprint image, the algorithm arranges overall...

Secure Web Based System Development

Oluleke Bamodu, Benson Otafu, Liwei Tian
Web based systems which are applications developed for use in networked environments require very high level of in built security. This paper is an attempt to clearly lay out and explain the necessary skills, comparatively analyze several important lifecycles and propose threat modeling techniques for...

Study of Overvoltage Protection and Insulation Coordination for MMC based HVDC

Yilei Gu, Xiaoming Huang, Peng Qiu, Wen Hua, Zheren Zhang, Zheng Xu
This paper focus on overvoltage protection and insulation coordination in Modular Multilevel Converter based HVDC system planning. An overvoltage protection scheme, which bases on the topology used in Transbay project by Siemens, is proposed in this paper. The scheme draws from the characteristics of...

A CROSS-PLATFORM AND CONTEXT-AWARE MIDDLEWARE APPLICATION

Zhen Liao, Jingling Zhao
Nowadays, context-aware applications have become a hot research field. However, many context-aware applications don’t fully connect to the characteristics of the Internet and the developed applications are limited by the platform, thus, the cross-platform deployment can’t achieve. This paper presents...

A Cross-layer Design Scheme between Spectrum Decision and Routing in Cognitive Wireless Mesh Networks

Guo-an Zhang, Yun Yang, Yan-cheng Ji
Spectrum sharing technologies can achieve the maximum usage of spectrum resources flexibly and high-efficiently, which relieves the current spectrum crunch situation availably. In a multi-hop cognitive wireless mesh network scenario coexisting with a TDMA/FDMA cellular network, an effective scheme of...

Improved Slope One Algorithm Based On Time Weight

Tongqiang JIANG, Wei LU
Collaborative filtering is regarded as the most prevailing techniques for recommendation system. Slope one is a family of algorithms used for collaborative filtering. It is the simplest form of non-trivial item-based collaborative filtering based on ratings. But all the family of use CF algorithms ignores...

An Applicable Technical Analysis Based on Accomplishment of Vehicle Troop Monitoring System

Li An, Xuemei Ye, YuTong Zhang, Jun Tian
Nowadays motorcades are often used in entertainment and work in our daily life. Accordingly, it has become our major concern about ensuring the security of a motorcade, improving coordination of all the vehicles in the course of driving and increasing the efficiency of accomplishing various tasks. This...

Fault Analysis of AC Uninterruptible Power Supply System in Gas Pipeline Compressor Station

Hanlin Chen
Regarding the AC UPS fault accident happened in one compressor station which caused severe consequence with gas transmission pipeline, this paper lists the possible reasons based on the recorded fault code and equipment configuration, and solutions are proposed for modification. In the end, recommendations...

Kalman Filter Algorithm for Adaptive Digital Predistortion

Xiaowei Kong, Jinzheng Li, Wei Xia, Zishu He
This paper introduces a recursive algorithm of Kalman filter for digital predistorter parameters extraction based on memory polynomials predistorter model. The predistorter model is firstly formulated as linear regression expression. Then we derive the state-space equation of the model and attain the...

Localization of Mobile Robot Based on Least Square Method

Jialu Li, Linbing Long, Baofeng Zhang
Localization is the basis for navigation of mobile robots. This paper focuses on key techniques of localization for mobile robots based on vision. Firstly, the specific measures and steps of the algorithm are analyzed and researched in depth. In the study, SIFT algorithm combined with epipolar geometry...

Application of Orthogonal Experimental Design for the Automatic Software Testing

Hao Wu
According to inputting different combination of conditions so as to produce different impacts, software testing designs a large number of test cases. If the implementation of an overall test, due to the limit of the combination of conditions, it is difficult to carry out. In order to generate high quality...

Application of Multimedia Technology and Network-based Environment in Oral English Teaching

Jie Xu, Guojian Li
This paper mainly analyzes the current problems existing in oral English teaching with application of multimedia technology and network-based environment on base of constructive learning theory as well as current reform situation. By providing diverse effective strategies, both scientific application...

Feature-level Fusion of Dual-band Infrared Images Based on Gradient Pyramid Decomposition

Xiujie Qu, Fu Zhang, Ying Zhang
Infrared thermal imager has been widely used in the fields of missile guidance and flaw detection. To identify the target clearly, the advanced one adopts dual bands sensors to capture images. Since of that, there is an urgent need of a fusion of the dual-bands images. The fused result includes much...

Analyse of the Mixed-Integer Nonlinear Programming Method for the Application in the Cellular Network

Shan ZONG, Bing LIU
This paper discussed several methods to maximize the sum of the data rate. After the analysis of the graphic algorithm, we found the difficulty of the determination of the variables. To solve the problem, we propose a new idea to operate the variable and proved it to be efficient in the simulation results.

An Improved Multistage Variable-step MPPT Algorithm for Photovoltaic System

Ping Wang, Zhe Zhou, Mengmeng Cai, Jingbin Zhang
This paper presents an improved multistage variable-step incremental conductance method to achieve the maximum power point tracking (MPPT). Compared with the traditional variable-step incremental conductance method, this improved algorithm optimizes the selection of the step size so that the tracking...

Modeling and Simulation of Full-bridge Series Resonant Converter Based on Generalized State Space Averaging

Ping Wang, Can Liu, Lin Guo
The small signal modeling technique based on the generalized state space averaging method is applied to single phase full-bridge resonant DC/DC converter .According to the simulation, the frequency characteristic curve is obtained from MATLAB, this paper analyzes the influence of the duty ratio, input...

The Research of Routing Algorithm Based on Shortest Path Tree in WSNs

Yuhua Liu, Zhenrong Luo, Ke Xu, Cui Xu
This article poses an algorithm of the hierarchical topology in wireless sensor network based on shortest path tree algorithm to cover the shortage of LAC Routing Algorithm (LAC-T), which based on SPT(Shortest Path Tree). LAC-T algorithm elects cluster head by the remaining energy of nodes and the distance...

The Research about No-vibration Data Storage of Micro-scale and Long-term Ocean Turbulence Measurement

Xin LUAN, Bing XUE, Feng-mei SUN, Qi-zhi YAN, Da-lei SONG
Turbulence played an important role in the evolution of the seawater energy and exchange. Multi-scale, long-term, fixed-point and continuous sampling is a new research direction in the turbulence observation. This dissertation designed high-capacity and no-vibration data storage solutions aiming at long-term,...

Improved Pedestrian Detection Based on Extended Histogram of Oriented Gradients

Li-hong ZHANG, Lin LI
In order to further improve pedestrian detection accuracy and avoid the disadvantage of original histogram of oriented gradients (HOG), differential template, overlap ratio and normalization method and so on are improved when HOG features are extracted, then more gradient information are extracted and...

Design of a High Definition Video Communication System in Real-time Network

Yunfeng Liu, Xianrong Peng, Zheng Jin
This paper presents the design of a high definition video communication system with real-time performance in the network. In order to process and transmit the high definition video, the design combines FPGA and SOC, follows the H.264 video coding compression. The FPGA realizes the high–speed video acquisition...

A Computing Capability Allocation Algorithm For Cloud Computing Environment

Wenxin Hu, Jun Zheng, Xiayu Hua, Yaqian Yang
For several special features in the environment of cloud computing, which may be quite different from the centralized computing infrastructure currently available, the existed method of resource allocation used in the grid computing environment may not be suitable for these changes. In our paper, a new...

A New Algorithm of Eyed Typhoon Automatic Positioning Based on Single Infrared Satellite Cloud Image

Gang Yin, Yu Feng Chen
According to the characteristic that the gray value difference is quite obvious in different areas of the singles infrared cloud, this paper puts forward an algorithm of the eyed typhoon's center automatic positioning. After pretreating the cloud image, we use the template to segment the airtight cloud...

A User Selection Algorithm Based On the Combination of Block Diagonalization and SLNR Maximization

Weihong Fu, Cheng Wang, Nai’an Liu, Qingliang Kong, Weixin Tian
In this paper, a new precoding scheme is proposed based on the combination of Block Diagonalization (BD) and SLNR (Signal Leakage Noise Ratio) maximization. Then a new user selection algorithm is proposed based on the joint precoding scheme. BD precoding will cause performance loss in the single antenna...

A method of inquiring ontology with semantic templates

Xin Ouyang, Chunyan Shuai
It is always a challenge by using statistical method in corpus database to analyze semantics of natural language Sentences (NLS). This paper proposes a method of recognizing and translating ontology query in natural language, called OntoQuery-NLP. With the help of pre-create semantic templates, the OntoQuery-NLP...

Energy Balance Design and Analysis of Long-flight-time Solar Powered UAV

Qinling Zhang, Jian Huang, Feifei Wen
Characteristics and technical difficulties of long– flight-time solar powered UAV airborne power and energy storage system was studied, and a general design method based on energy balance relation and aerodynamic parameters was proposed. The relation formula between key parameters such as solar cell...

A QoS-Aware Scheduling Algorithm Based on Service Type for LTE Downlink

Weihong Fu, Qingliang Kong, Weixin Tian, Cheng Wang, Lili Ma
In this paper, a resource scheduling algorithm for Long Term Evolution (LTE) downlink is proposed. It provides Quality of Service (QoS) guarantee to Guaranteed Bit Rate (GBR) services and also suit to the Non Guaranteed Bit Rate (Non-GBR). Different services possess different QoS needs in LTE system,...

An Approach of Web Page Information Extraction

Yaohui Li, Lixia Wang, Jianxiong Wang, Jie Yue, Mingzhan Zhao
The Web has become the largest information source, but the noise content is an inevitable part in any web pages. The noise content reduces the nicety of search engine and increases the load of server. Information extraction technology has been developed. Information extraction technology is mostly based...

Design of Software Defined Radio Platform Resource Model Based on SCA

Yunlong Yang, Yourong Lu, Qian Cai, Yingyong Lai
Software Defined Radio (SDR) platform resource model is the description and organization of the SDR platform resource. It’s the foundation of the SDR platform resource management. Through these years, the Software Communication Architecture (SCA) has becoming the most famous specification for SDR, which...

Distributed Trust Management Mechanism for the Internet of Things

Jingpei Wang, Bin Sun, Yu Yang, Xinxin Niu
Trust management provides a potential solution for the security issues of distributed networks. However, there are rare researches about the trust mechanism for IoT in the literature. A new distributed trust management mechanism for IoT is established in this paper. Firstly, we extract three basic elements-...

Protecting the Security and Privacy of the Virtual Machine through Privilege Separation

Cong Yu, Lixin Li, Kui Wang, Wentao Yu
Virtual machine security issues have been the focus of attention. The permissions of traditional administrative domain Dom0 are too large, so that the user's privacy is threatened. Once the attacker compromises Dom0, it can threaten the entire virtualization platform. This paper introduces a privilege...

The Research and Application of heterogeneous database based on XML in Distance Education

Yaowen Xia, Zhiping Li, Saidong Lv, Guohua Tang
this paper analyzes the problems of heterogeneous databases in a distance education system. It provides a heterogeneous database integration model based on XML and design and develop a heterogeneous database integration platform based on this model. Thus, it provides a unified standard and effective...

A New Scale Free Evolving Network Model with Community Structure

Jun CAI, WaiXi LIU
Understanding and modeling the structure of a complex network can lead to a better knowledge of its evolutionary mechanisms, and to a better cottoning on its dynamic and functional behavior. The nodes within a network not only tend to connect the nodes with high degree (scale-free property), and tend...

Relationship between Short Term Traffic Flow Chaos Fractal Properties and the Necessary Data for Prediction

Gang Yin, Yu Feng Chen
Analyze the traffic flow in multi-scale time window of a freeway by using the nonlinear analysis method such as Correlation dimension , recursive map and so on, we find that chaos and fractal still exist in wide observation scales. Traffic flow correlation dimension reduces when the length of time window...

Design and Implementation of USB-based Microwave Power Sensor

Hao Zhao, Zhanyong Dong
According to the limitations of desk microwave power measurement instruments used in system setup and product line field, a brand new minisize power measurement design based on USB interface is proposed. Firstly, the design principles of analog channel, digital signal processing and the USB interface...

The Hybrid HMM for RSS-based Localization in Wireless Sensor Networks

Yanhong Zang, Jinsong Wang, Lin Ling, Peizhong Lu
We propose a method of RSS-base localization in WSN (Wireless Sensor Network), called Hybrid HMM, to improve the stability of node localization based on RSS (Received Signal Strength). This model utilizes HMM (Hidden Markov Model) to take into account the time factor when receiving the RSS sequence,...

Study on the Applications of FBG Technology in River Level Monitoring

Dongjie Tan, Bing Han, Baoyan Wang, Liangliang Li
In order to overcome the disadvantage of low accuracy for traditional monitoring technologies of river level, and solve the problems in real-time data acquisition and remote transmission for the existing hydrological observation, we design a new monitoring system of river level based on fiber grating...

A Fuzzy Adaptive K-SVD Dictionary Algorithm for Face Recogntion

Xiaoning Song, Zi Liu
Sparse representations using overcomplete dictionaries has concentrated mainly on the study of pursuit algorithms that decompose signals with respect to a given dictionary. Designing dictionaries to better fit the above model can be done by either selecting one from a prespecified set of linear transforms...

The Research About Remote Transmit Manage Unit Which Is Based On ModBus Protocol

Guojun WANG
ModBus Protocol is researched and developed by MODICOM company which owns its copyright.The research about Remote Transmit Manage Unit applies the opened ModBus protocol. The text of protocol itself is very simple and can be easily obtained.The protocol is surpported by both domestic manufacturers and...

Research of cloud computing task scheduling algorithm based on improved genetic algorithm

Junwei GE, Yongsheng YUAN
Use genetic algorithm for task allocation and scheduling has get more and more scholars' attention. How to reasonable use of computing resources make the total and average time of complete the task shorter and cost smaller is an important issue. The paper presents a genetic algorithm consider total task...

A Multi-dimensional Data Storage Using Quad-tree and Z-Ordering

Fang Hou, Chenghui Huang, Jiyuan Lu
Multi-dimensional applications use tree structure to store data and space filling curves to traverse data. Most frequently used Quad-tree and Z-ordering curve are analyzed. By importing these to a HDF5 file format, a multi-dimensional data storage subsystem is constructed. Performance test results show...

Machining Precision Research for Two WEDM Processes

Xiaojing Li, Yanhui Hu
Plenty of round holes or especial holes distributed in measuring device and mold component with higher positional requirement, in general, are formed in WEDM technology. In the process of WEDM operation, whole holes with high requirement should be finished in one time, which can avoid of positional error...

A web based method for Measuring Semantic Relatedness between words

Bo You, Tingting He, Fang Li
Semantic relatedness measures play important roles in many fields, such as information retrieval and Nature Language Processing. There are mainly two kinds of traditional methods to measure semantic relatedness: dictionary based and corpus based. However, with the development of information technology,...

Research on the distribution automation system based on IEC61850

Hongwang Xin, Qiaolin Ding
In order to solve interoperability of the distribution automation devices and Plug and Play issues, propose intelligent power distribution model based on IEC61850, Stratifie according to the method of information: Master level feeder layer the terminal layer device layer layer monitoring. Use the face...

Automatic gauge control hydraulic cylinder state identification using modified image based acoustic emission profile

H. Chen, Y. Lu, H. Zhao, Y. Sun, P. Wang, J. Huang
The growing requirements of steel products qualities bring even tricky restrictions to the rolling process. With the fast response, reliable control and low maintenance requirements, the hydraulic automatic gauge control system has been widely applied to screw down the roller to maintain the precise...

Infrared Moving Multi-target Tracking Based on Particle Filter and FCM

Fanjun Hu, Wenjun Shi
An efficient approach based on particle filter and FCM is presented to realize moving infrared multi-target tracking under Island shore background. Some possible targets can be obtained and saved by processing IR data through denoising by median filter, extracting edge, identifying and eliminating sea-sky...