会议论文集名称：
International Conference on Wavelet Analysis and Pattern Recognition
关键词：
GPR;step system;minimum transmission delay
摘要：
When GPR is used for sub-bottom survey, the echo signal not only contains very high frequency, but also lasts for only several nanoseconds. These are the two difficulties in GPR signal sampling. Meanwhile, the step system which is responsible for the data sampling has an inherent minimum transmission delay. This delay will cause the failure of data collecting. In this paper, a new type of step system which is based on cascaded AD9500 is presented. This step system can realize high resolution of 0.0125ns, it can also counteract the influence of minimum transmission delay. This method can realize adaptivity to all GPR sampling systems through setting up parameters. The experimental results show the step system can remove the minimum transmission delay and realize high resolution detection.
摘要：
This paper presents a new de-noising method for GPR image based on BEMD and wavelet. This method complies with the adaptability from BEMD. The method decomposes the image into a series of IMF components, then applies wavelet threshold de-noising on the selected high frequency IMF components for de-noising. In the reconstruction course, the de-noising IMF and low frequency IMF are combined. The experiment results shows the effectiveness of the method on GPR image.
摘要：
For the issue of image denoising, in order to avoid the traditional multi-scale sparse representation methods, which used blocks of different sizes as a base function to represent image, the non-separable wavelets were taken. Their advantages included revealing the multi-scale structure, depicting the texture structure under different scales, and separating different directions and different types of singularity structure in a certain extent. Based on non-separable wavelets, a multi-scale sparse denoising model in the wavelet domain was we established, and then a collaboration sparse model for the sub-bands contained similar structures was designed to enhance the stability and accuracy of the sparse representation. The results show that the denoising effect based on new approach is obvious superior to the K-SVD algorithm.
期刊：
Applied Mechanics and Materials,2014年687-691:3909-3913 ISSN：1662-7482
通讯作者：
Liu, Shan Mei
作者机构：
[Long Zhou; Lu Gan] School of Electric and Electronic Engineering, Wuhan Polytechnic University, Wuhan, China;[Shanmei Liu] College of informatics, Huazhong Agricultural University, Wuhan, China
通讯机构：
[Liu, S.M.] S;School of Electric and Electronic Engineering, Wuhan Polytechnic UniversityChina
会议名称：
International Conference on Manufacturing Technology and Electronics Applications
会议时间：
2014-11-08
会议地点：
Taiyuan
会议论文集名称：
Manufacturing technology, electronics, computer and information technology applications: Selected, peer reviewed papers from the 2014 International Conference on Manufacturing Technology and Electronics Applications (ICMTEA 2014), November 8-9, 2014, Taiyuan, Shanxi, China
关键词：
De-noising;EEMD;EMD;GPR
摘要：
Aiming at the de-noising of GPR echo signal, a de-noising method based on EEMD and wavelet is presented. First the echo signal data is processed with EEMD and yields IMF components. Then the IMF components which indicate noise are subtracted. Next, the high frequency IMF components of the remaining are subjected to wavelet threshold. Finally, the signal is reconstructed using the de-noising IMF and low frequency IMF to realize signal de-noising. Compared with other commonly used methods, EEMD-wavelet method has improvement on SNR. The experiment results show its effectiveness and feasibility in GPR de-noising.
期刊：
WIT Transactions on Engineering Sciences,2014年87:477-487 ISSN：1743-3533
作者机构：
[Long Zhou; Weizhen Chen] School of Electrical and Electronic Engineering, Wuhan Polytechnic University, Wuhan, China;[Jinglu Hu; Weizhen Chen] Graduate School of Information, Production and Systems, Waseda University, Fukuoka-Ken, Japan
会议名称：
2013 3rd International Conference on Advanced Materials and Information Technology Processing (AMITP 2013)
摘要：
Purpose - Denoising of the vibration signal is crucial to identify a structure's damage. Based on noise frequency character, the "real" vibration signal can be gotten. The purpose of this paper is to propose a novel method for denoising a signal based on the wavelet transform. Design/methodology/approach - The vibration signal with noise which can be collected by wireless network is decomposed by wavelet transform. In order to select optimal level of wavelet decomposition, based on noise's frequency, power spectral density is used. A soft thresholding method based on minimum mean-variance is used for vibration signal de-noising with Gaussian noise. Findings - A novel method has been described in his paper. Based on the relationship between vibration signal's character and noise frequency, the way to get rid of noise is combined wavelet transform with power spectral density. Originality/value - In order to select optimal level of wavelet decomposition, based on noise's frequency, power spectral density is used. A soft thresholding method based on minimum mean-variance is used for vibration signal denoising with Gaussian noise.
摘要：
In this paper, trend relational algorithm and grey-fuzzy clustering method are presented. A new algorithm for analysis the trend relational between a set of key point data with a set of prototypes is proposed. Trend relational grade can be used to divide cluster by fuzzy method. The researched results can open new prospects for the development and application of systems methodology to clustering.
关键词：
Active control;Anti-synchronization;Pinning control;Synchronization;Three-Scroll Unified Chaotic System (TSUCS)
摘要：
This paper studies the synchronization and anti-synchronization problem of the Three-Scroll Unified Chaotic System (TSUCS), which has nonlinear terms in each subsystem. By virtue of active control, a novel active pinning control strategy is presented, which only needs one or two states of the TSUCS. Under the proposed controller, the synchronization of two TSUCS with parametric uncertainty is achieved and therefore the robust stability of TSUCS synchronization is ensured. Some stability theories about synchronization and anti-synchronization have been given and proved the use of this class of a novel TSUCS and its hyper-unified chaotic system with the active pinning control strategy. Numerical simulations are given to verify the theoretical analysis, which clearly shows that the control strategy can really make the chaotic systems achieve synchronization and anti-synchronization in a quite short time.
期刊：
Proceedings of the IASTED International Conference on Signal Processing, Pattern Recognition and Applications, SPPRA 2013,2013年:215-221
通讯作者：
Mou, Y.(my515@yahoo.cn)
作者机构：
[Jiang, Xiubao; Mou, Yi; Yu, Shujian; Ou, Weihua; You, Xinge] Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;[Zhou, Long] School of Electrical and Electronic Engineering, Wuhan Polytechnic University, Wuhan 430023, China
摘要：
A new baseline correction algorithm for spectral signal based on sparse representation is proposed. Firstly, utilizing the training sample to obtain the dictionaries of both baseline and spectrum;Secondly, establishing sparse representation model of spectral signal;thirdly, employing OM-P algorithm to calculate the representation coefficients of spectral signal and finally, obtaining the spectral baseline from representation coefficients which are corresponded to the baseline dictionary. Then, the spectra baseline correction is completed by removing the baseline from original observed spectrum. Contrast experiment and quantitative analysis of corrected spectral signals are conducted and results show the highly efficiency and accuracy of the proposed algorithm.
通讯机构：
[Guan, Zhihong] H;Huazhong Univ Sci & Technol, Dept Control Sci & Engn, Wuhan 430074, Peoples R China.
关键词：
Fractional-order Hyperchaotic System (FOHCS);Feedback Control (FC);Laplace transform;antisynchronization;Lü-like Hyperchaotic System
摘要：
In this paper, the chaos multiscale-synchronization between two different Fractional-order Hyperchaotic System (FOHCS)s have been investigated. The Lü-like and its FOHCS are also studied. The Lü-like FOHCS is controlled to be multiscale-synchronization with Liu FOHCS and new Lorenz FOHCS, respectively. The analytical conditions for the multiscale-synchronization of these pairs of different FOHCSs are derived by utilizing Laplace transform. Furthermore, multiscale-synchronization between two different FOHCSs is achieved by utilizing the different linear and nonlinear feedback control method in a short period and both remain in chaotic states. Numerical simulations are used to verify the theoretical analysis using different values of the fractional-order parameter and the different linear and nonlinear control functions.
期刊：
Journal of Communications,2013年8(3):161-167 ISSN：1796-2021
通讯作者：
Zhen, X.(xuzhen@whu.edu.cn)
作者机构：
[Long, Zhou; Zhen, Xu] School of Electric and Electronic Engineering, Wuhan Polytechnic University, Wuhan, China
通讯机构：
School of Electric and Electronic Engineering, Wuhan Polytechnic University, China
关键词：
Bandwidth;Multicast;Routing;Slot
摘要：
Multicasting, which is a one-to-many communication, is motivated by the increasing importance of real-time and multimedia applications with different QoS requirements. The QoS metric considered in this work is the bandwidth. We approach this problem by assuming a common channel shared by all hosts under a TDMA (Time Division Multiple Access) channel model. In this paper, we propose a new TDMA-based QoS multicast routing algorithm--PSLCB, which aims at minimizing the number of forwarders so as to reduce bandwidth consumption. Simulations results show that compared with ODMRP, our proposed QoS routing algorithm improve packet delivery ratio and reduce end-to-end packet delay.<br/>
作者机构：
[徐正全] State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China;[周龙] Department of Electric Information Engineering, Wuhan Polytechnic University, Wuhan 430023, China;[Zeng, Wu] State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China<&wdkj&>Department of Electric Information Engineering, Wuhan Polytechnic University, Wuhan 430023, China
通讯机构：
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, China
期刊：
International Conference on Wavelet Analysis and Pattern Recognition,2011年:77-82 ISSN：2158-5695
通讯作者：
Gao, Z.(gaozhifan@gmai1.com)
作者机构：
[Gao, Zhifan; You, Xinge] Department of Electronics and Information Engnineering, Huazhong University of Science and Technology, Wuhan, China;[Zeng, Wu] State Key Laboratory of Infonnation Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, China;[Zeng, Wu; Zhou, Long] Department of Electric Information Engineering, Wuhan Polytechnic University, Wuhan, China
会议名称：
2011 International Conference on Wavelet Analysis and Pattern Recognition(2011小波分析与模式识别国际会议)
会议时间：
2011-07-10
会议地点：
桂林
会议论文集名称：
2011 International Conference on Wavelet Analysis and Pattern Recognition(2011小波分析与模式识别国际会议)论文集
