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Displaying 1-24 out of 24 total
The Probability Distribution Modeling and Parameter Estimation Method of ROD in Different Packet Loss Pattern for Heterogeneous Network
Found in: Communications and Mobile Computing, International Conference on
By Zhen Yanxiang, Su Fang, Xu Huimin
Issue Date:January 2009
pp. 185-190
The packet loss differentiating mechanism of TCP for heterogeneous network has the important influence to the stability of wireless network, relative one-way delay (ROD) of loss pair is adopted as a differentiating parameter to distinguish the loss type in...
 
LDPC Application Based on CI/OFDM Underwater Acoustic Communication System
Found in: Information Science and Engineering, International Conference on
By Li-yang Bai, Fang Xu, Ru Xu, Shao-yu Zheng
Issue Date:December 2009
pp. 2641-2644
In this paper, we introduce carrier interferometry OFDM (CI/OFDM) into the underwater acoustic transmission field, and put the emphasis on how to deal with BER during communication with LDPC approach. We also analyze the error distribution of the received ...
 
An Improved Adaptive Lifting Scheme Combining Gradient Operator for Image Coding
Found in: Information Science and Engineering, International Conference on
By Shaoyu Zheng, Ru Xu, Fang Xu, Deqing Wang
Issue Date:December 2009
pp. 1133-1136
In this paper, an improved adaptive update and adaptive prediction algorithm is put forward. The method makes full use of the correlation of neighboring pixels, which the approximation band and the detail bands obtained by a polyphase decomposition of an o...
 
Weak Signal Extraction Based on Wavelet Packet Transform in Sea Noise Background
Found in: Information Science and Engineering, International Conference on
By Changyuan Ye, Ru Xu, Fang Xu, Xiaoyi Hu, Jing Xiao
Issue Date:December 2009
pp. 718-722
Sea noise is a non-stationary random series. The acoustic channel noise of shallow sea has the features of remarkable nonlinear and non-gaussian characteristics of pulse. We use wavelet packets to analyse this kind of noisy signal, and study on different w...
 
Research on Base-Band OFDM Underwater Acoustic Communication System
Found in: Information Science and Engineering, International Conference on
By Deqing Wang, Ru Xu, Shaoyu Zheng, Fang Xu, Xiaoyi Hu, Hui Liu
Issue Date:December 2009
pp. 2703-2706
It is tough to achieve higher transmit speed and lower bit error rate(BER) because of the complexity of the underwater acoustic channel. This paper proposes a method of orthogonal frequency division multiplexing (OFDM) modulation technique for improving th...
 
Construction and Expression of CpxP Protein from Plant Pathogenic Bacteria
Found in: Biomedical Engineering and Biotechnology, International Conference on
By Zi Yang,Xiaohui Zhou,Jianjun Song,Xuexing Fang,Xu Xiong
Issue Date:May 2012
pp. 119-122
The CpxA/R signal transduction system is one prevalent two-component systems (TCSs) in gram-negative bacteria involved in the process of bacterial adherence, invasion, motility and cell division. CpxP is the auxiliary inhibitor of Cpx-two-component system ...
 
The Practice and Application of BI
Found in: Internet Computing and Information Services, International Conference on
By Xie Fang,Xu Junwu
Issue Date:September 2011
pp. 246-248
No summary available.
 
Adjustable Inertia Ratio Control for Low-Frequency Torsional Resonance Suppression in Industrial Servo System
Found in: Measuring Technology and Mechatronics Automation, International Conference on
By Liangsong Huang, Daokui Qu, Fang Xu
Issue Date:March 2010
pp. 432-435
Low-frequency torsional resonance arising from large inertia load and elastic shaft causes vibration when industrial servo system is working, which degrades the system’s performance of motion control. This paper presents an adjustable inertia ratio control...
 
Based on u-n under the Flux Observer Spindle Motor Direct Torque Control System Simulation
Found in: International Conference on Information Management, Innovation Management and Industrial Engineering
By Fang Xu, Ke Zhang, Lixiu Zhang, Yuhou Wu
Issue Date:December 2009
pp. 119-122
Purpose: to study the performance of DTC system (direct torque control) within the Motorized Spindle full-speed range, and to improve the observation precision of Motorized Spindle stator flux by adopting the Full-order stator flux observer. Method: constr...
 
A Hybrid Algorithm of Eyes Localization in Color Facial Region
Found in: Artificial Intelligence and Computational Intelligence, International Conference on
By Yihu Yi, Daokui Qu, Fang Xu
Issue Date:November 2009
pp. 113-118
In this paper, a hybrid algorithm for precise eyes localization in color facial region is presented. In practice, most eye detection suffer from the influence of illumination and face pose. Multiple techniques are integrated in this algorithm to overcome t...
 
Face Detection Method Based on Skin Color Segmentation and Eyes Verification
Found in: Artificial Intelligence and Computational Intelligence, International Conference on
By Yihu Yi, Daokui Qu, Fang Xu
Issue Date:November 2009
pp. 495-501
Due to the existence of complicated illumination, background and variations of pose, fast and robust face detection is constrainted in many applications. This paper describes a novel scheme conceived to integrate multiple cues to detect face under in-plane...
 
Cost Analysis and Study of IP Network
Found in: Information Technology and Applications, International Forum on
By Fang Xu, Xin Zhanhong
Issue Date:May 2009
pp. 43-52
Nowadays the globe telecom industry is experiencing a IP transfered course from network to operation, and it brings along a series of problems. This is a momentous challenge for the operators, and it is a serious tribulation for the making of the policy. T...
 
Investigation into registration of scanned 3D image based on geometric feature identification
Found in: International Conference on Computer Supported Cooperative Work in Design
By Lirong Wang, Fang Xu, Ichiro Hagiwara
Issue Date:April 2009
pp. 648-653
This paper investigates geometric feature extraction from scanned image and applies it in multi-view image registration. The presented registration approach includes three steps, feature extraction, coarse registration and fine registration. Firstly, featu...
 
Research Application of Task-driven Method in Teaching of the Course Operating System
Found in: Education Technology and Computer, International Conference on
By Li Fang, Xu Li
Issue Date:April 2009
pp. 164-166
On the basis of the analysis of the characteristics of the course Operating System, the application of the Task-driven Method in teaching of this course is researched in this paper. The teaching task design, complement methods and comments on the tasks are...
 
An Efficient Registration Algorithm of Multi-view Three-Dimensional Images
Found in: Computer Science and Information Engineering, World Congress on
By Lirong Wang, Fang Xu, Ichiro Hagiwara
Issue Date:April 2009
pp. 703-706
This paper proposes a kind of feature extraction based efficient registration algorithm including coarse and fine registrations. During coarse registration, feature points are detected, and feature point links are set up according to the relationship estab...
 
Design and Implement of Franking Machine Control System Based on ARM
Found in: Computer Science and Software Engineering, International Conference on
By Libin Zhang,Weimin Shi,Fang Xu,Hongwu Zhan
Issue Date:December 2008
pp. 41-44
This paper presents the design and implementation of franking machine control system using an embedded microcontroller. An ARM9 microcontroller and embedded real-time operating system RTAI-Linux were employed to implement the machine control and postage ma...
 
Matrix Realignment Method for Calculating the Partial Transposes and the Partial Traces of Density Matrices
Found in: International Conference on Natural Computation
By Wei Cheng, Fang Xu
Issue Date:October 2008
pp. 647-651
Motivated by Peres's work [A. Peres, Phys. Rev. Lett. 77: 1413-1415 (1996)] and Horodeckis' work [M, Horodecki, P. Horodecki, and R. Horodecki, Phys. Lett. A 223: 1-8 (1996)], we develop a very simple method to directly calculate the partial transposes and...
 
Fuzzy reasoning for modeling and simulation of the plant growth
Found in: Intelligent Systems Design and Applications, International Conference on
By Fang Xu, Jiaoliao Chen, Libin Zhang, Tinghua Gu
Issue Date:October 2006
pp. 234-249
The methodology proposed in the paper applies artificial intelligence (AI) techniques to the modeling and simulation of the plant growth. Because it is difficult to build up the production rules, a new construction method of L-system was proposed, which ap...
 
A New Approach for Nonlinearity Test of ADCs/DACs and its Application for BIST
Found in: European Test Workshop, IEEE
By Fang Xu
Issue Date:September 1999
pp. 34
This paper describes an algorithm to derive the non-linearity performances of Analog-to-Digital and Digital-to-Analog Converters (ADCs/DACs) from FFT results. The main advantages of the new approach over conventional ones are that the test stimuli are simp...
 
Lattice-Based Volumetric Global Illumination
Found in: IEEE Transactions on Visualization and Computer Graphics
By Feng Qiu, Fang Xu, Zhe Fan,N. Neophytos,A. Kaufman,K. Mueller
Issue Date:November 2007
pp. 1576-1583
We describe a novel volumetric global illumination framework based on the face-centered cubic (FCC) lattice. An FCC lattice has important advantages over a Cartesian lattice. It has higher packing density in the frequency domain, which translates to better...
 
Real-time rendering of realistic rain
Found in: ACM SIGGRAPH 2006 Sketches (SIGGRAPH '06)
By Lifeng Wang, Sing Bing Kang, Tian Fang, Xu Yang, Xuan Yu, Zhouchen Lin
Issue Date:July 2006
pp. 156-es
We propose a new GPU based technique to render realistic rain in real-time. It consists of two parts: off-line image analysis of rain videos, and real-time particle-based synthesis of rain. Videos of real rain are analyzed to extract the rain mattes; rando...
     
Real-time rendering of realistic rain
Found in: Material presented at the ACM SIGGRAPH 2006 conference (SIGGRAPH '06)
By Lifeng Wang, Sing Bing Kang, Tian Fang, Xu Yang, Xuan Yu, Zhouchen Lin
Issue Date:July 2006
pp. 156-es
We propose a new GPU based technique to render realistic rain in real-time. It consists of two parts: off-line image analysis of rain videos, and real-time particle-based synthesis of rain. Videos of real rain are analyzed to extract the rain mattes; rando...
     
A Study and Design of SOA-Based Service Integration for Logistics Customs-Clearance
Found in: Parallel and Distributed Processing with Applications, International Symposium on
By Deng Hui-fang, Xu Guang-feng
Issue Date:September 2010
pp. 263-267
In order to realize efficient information sharing and interoperability among varying platforms or large-scale systems, in this paper, we present an approach to SOA-based service integration which makes the service granularity flexible to change. Through ch...
 
Research on Auto-monitoring System for Cold Storage Temperature Based on VB
Found in: Intelligent Computation Technology and Automation, International Conference on
By Zhen-fang Xu,Yan Wang
Issue Date:March 2011
pp. 689-691
Cold storage is responsible for agriculture, livestock, aquaculture and other perishable food and drinks and some industrial raw materials and other goods processing, which is the necessary facility for storage tasks and an important part in commodity circ...
 
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