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2010 International Conference on Communications, Circuits and Systems (ICCCAS)最新文献

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HRR detection theory in coherent Weibull clutter 相干威布尔杂波中的HRR检测理论
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-09-23 DOI: 10.1109/ICCCAS.2010.5581968
Xiaofei Shuai, L. Kong, Jianyu Yang
{"title":"HRR detection theory in coherent Weibull clutter","authors":"Xiaofei Shuai, L. Kong, Jianyu Yang","doi":"10.1109/ICCCAS.2010.5581968","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581968","url":null,"abstract":"In this paper, we first introduce the definition of spherically invariant random vector (SIRV) and then give the representation of Weibull distribution by SIRV and two detection algorithms for Weibull clutter. In particular, the optimum detector is derived for the distributed target by the Neyman-Pearson (NP) criterion. Since the optimum NP detector is impossible to realize at the practical situations, we also introduce the GLRT-based adaptive detector. Finally, the numerical results show that the performance loss due to adaptively estimating the covariance matrix and texture component is negligible.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124425210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chaotic synchronization of a fractional neurons network system with two neurons 具有两个神经元的分数神经元网络系统的混沌同步
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581878
Shangbo Zhou, Xiaoran Lin, Limin Zhang, Yong Li
{"title":"Chaotic synchronization of a fractional neurons network system with two neurons","authors":"Shangbo Zhou, Xiaoran Lin, Limin Zhang, Yong Li","doi":"10.1109/ICCCAS.2010.5581878","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581878","url":null,"abstract":"Chaos in a fractional-order neurons network which contains two neurons is analyzed by means of Lyapunov exponents and waveform diagrams. And numerical simulations shows that this system can be synchronized realize spread secure communications and achieve two-way signals transmission.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124396321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Generalized synchronization of non-autonomously discrete time chaotic system 非自主离散时间混沌系统的广义同步
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581874
Ting Liu, L. Min, Li Cao
{"title":"Generalized synchronization of non-autonomously discrete time chaotic system","authors":"Ting Liu, L. Min, Li Cao","doi":"10.1109/ICCCAS.2010.5581874","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581874","url":null,"abstract":"This paper establishes three constructive theorems which are to achieve generalized chaos synchronization (GCS) for non-autonomously discrete time chaotic systems. The theorems uncover the general forms of two GCS non-autonomously discrete time chaotic systems by a prescribed transformation. Numerical simulation examples are given to illustrate the effectiveness of the proposed theorems.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120949706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Fractional order Liu-system synchronization and its application in multimedia security 分数阶刘系统同步及其在多媒体安全中的应用
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581877
Yanhong Deng, K. Qin
{"title":"Fractional order Liu-system synchronization and its application in multimedia security","authors":"Yanhong Deng, K. Qin","doi":"10.1109/ICCCAS.2010.5581877","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581877","url":null,"abstract":"This paper proposed a method to achieve the projective synchronization of fractional order Liu-system. Based on constructing an approximation integer order system for the fractional order Liu-system, a control algorithm is proposed to improve on the projective synchronization in the new integer order systems. The synchronization method is adopted to realize the generalized synchronization of 2.7 order Liu-system, and the simulation result verify the effectiveness. This control scheme can be used in some multimedia security and information transmission based on Internet.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"47 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120998502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Design and FPGA realization of a pseudo random sequence generator based on a switched chaos 基于切换混沌的伪随机序列发生器的设计与FPGA实现
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581965
Aixue Qi, Chunyan Han, Guangyi Wang
{"title":"Design and FPGA realization of a pseudo random sequence generator based on a switched chaos","authors":"Aixue Qi, Chunyan Han, Guangyi Wang","doi":"10.1109/ICCCAS.2010.5581965","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581965","url":null,"abstract":"The fact that chaotic systems are realized with finite precisions in digital systems leads to dynamical degradation of the original systems. The most well known problem of the degradation is the existence of short cycle length. To generate pseudo random (PR) sequences for spread spectrum communications and improve its statistical properties, this paper introduces a novel switched chaotic system, which consists of four different subsystems and can change its structure timely and randomly from one to another using two switching functions. Using the switched system, a PR sequence generator is designed and realized based on FPGA (field programmable gate array). This technique is derived from the idea of combining DSP Builder tool with Matlab/Simulink and Quartus II software, and guarantees the generation of repeatable consistent sequences based only on the initial conditions. Furthermore, the proposed PR sequence generator is subjected to four basic statistical tests using the well-known tests suites FIPS-140-1. This PR sequence generator successfully passes all basic statistical tests and can be used in the design of various FPGA-based spread spectrum communications.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125945010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Speech emotion recognition based on supervised locally linear embedding 基于监督局部线性嵌入的语音情感识别
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581962
Shiqing Zhang, Lemin Li, Zhijin Zhao
{"title":"Speech emotion recognition based on supervised locally linear embedding","authors":"Shiqing Zhang, Lemin Li, Zhijin Zhao","doi":"10.1109/ICCCAS.2010.5581962","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581962","url":null,"abstract":"Speech emotion recognition is a new and challenging subject in signal processing area. In this paper, a new feature extraction method based on supervised locally linear embedding (SLLE) is proposed for speech emotion recognition. SLLE is used to implement nonlinear dimensionality reduction on high-dimensional emotional speech features with nonlinear manifold structure. And then the enhanced low-dimensional data representations embedded with SLLE are extracted for speech emotion recognition. Experimental results on natural emotional Chinese speech database confirm the validity and high performance of the proposed method.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126620938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Stability analysis of V2 controlled buck converter operating in CCM and DCM V2控制降压变换器在CCM和DCM中的稳定性分析
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581936
Guohua Zhou, Jianping Xu, Yanyan Jin, Jin Sha
{"title":"Stability analysis of V2 controlled buck converter operating in CCM and DCM","authors":"Guohua Zhou, Jianping Xu, Yanyan Jin, Jin Sha","doi":"10.1109/ICCCAS.2010.5581936","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581936","url":null,"abstract":"The operation principle of V2 controlled buck converter operating in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) are analyzed. It is pointed out that V2 control is essentially a kind of control technique by utilizing peak output voltage as a control variable, quite similar to peak current-mode control. Stabilities of V2 controlled buck converter operating in CCM and DCM are analyzed in detail. It is concluded that V2 controlled buck converter is stable in CCM when duty ratio is less than 0.5 and in DCM for the whole range of duty ratio. When duty ratio is larger than 0.5, subharmonic oscillation of V2 controlled buck converter operating in CCM can be eliminated by using slope compensation. Simulation and experiment results are given to verify analysis results.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126770649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
A network intelligent video analysis system based on multimedia DSP 基于多媒体DSP的网络智能视频分析系统
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581979
Qi Wang, Qing Guan, Sheng Xu, Fang Tan
{"title":"A network intelligent video analysis system based on multimedia DSP","authors":"Qi Wang, Qing Guan, Sheng Xu, Fang Tan","doi":"10.1109/ICCCAS.2010.5581979","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581979","url":null,"abstract":"In this paper, we designed a hardware and software system using TI's new multimedia technology, Davinci based on multimedia DSP. The objective is to develop a practical Internet based intelligent video analysis product. This system can perform real-time processing of the video data from IP camera. And at the same time, it executes intelligent video analysis algorithms, provides users quick, accurate and intelligent video analysis service. In this system, we implement a multiple objects tracking approach for objects labeling being able to preserve objects identity even when an overlapping occurs on the image plane between different objects. And we use histogram matching techniques for real-time objects tracking under heavy occlusions and disappearance. We also compare our improved method with another objects tracking algorithm based on Mean Shift and Kalman filter. Experimental results show that the system is stable and fits real-time requirement, and the performance of our method is better.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116035022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Tracking accuracy analysis of dynamic programming track before detect algorithm 动态规划检测前跟踪算法的跟踪精度分析
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581960
Shuai Yue, L. Kong, Jianyu Yang, Wei Yi
{"title":"Tracking accuracy analysis of dynamic programming track before detect algorithm","authors":"Shuai Yue, L. Kong, Jianyu Yang, Wei Yi","doi":"10.1109/ICCCAS.2010.5581960","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581960","url":null,"abstract":"Dynamic programming algorithm is an effective track before detect method. It recovers target trajectory at the same time as the detection is declared after processing several successive frames of measurement. This paper simulates the tracking accuracy of each frame of trajectory which is recovered from the maximum of merit function after executing dynamic programming. Several useful results for improving tracking performance are obtained. First the tracking accuracy of middle frames is higher than both sides. Second the lager SNR and the more possible transition states, the more gentle the curves. Third under the condition of large SNR the more possible transition states, the higher accuracy.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117302972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A novel transformation for exploring open cloaks 探索开放式斗篷的新转变
2010 International Conference on Communications, Circuits and Systems (ICCCAS) Pub Date : 2010-07-28 DOI: 10.1109/ICCCAS.2010.5581888
C. Qiu, Tiancheng Han
{"title":"A novel transformation for exploring open cloaks","authors":"C. Qiu, Tiancheng Han","doi":"10.1109/ICCCAS.2010.5581888","DOIUrl":"https://doi.org/10.1109/ICCCAS.2010.5581888","url":null,"abstract":"Based on coordinate transformation, a novel method for exploring open cloaks is investigated. Two types of cloaks are proposed with continuous boundary and discontinuous boundary, respectively. The advantage of such cloaks is that the hidden object can be controlled to exchange information with the outer region or not. Although open cloaks do not perform as well as closed cloaks, they still can minimize the scattering significantly. Simulation results validate the method.","PeriodicalId":199950,"journal":{"name":"2010 International Conference on Communications, Circuits and Systems (ICCCAS)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117331312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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