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2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)最新文献

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A forward-backward UFIR algorithm for denoising of piecewise-smooth signals 一种用于分段平滑信号去噪的前向后UFIR算法
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676074
R. Olivera-Reyna, O. Vite-Chavez, L. Morales-Mendoza, Y. Shmaliy
{"title":"A forward-backward UFIR algorithm for denoising of piecewise-smooth signals","authors":"R. Olivera-Reyna, O. Vite-Chavez, L. Morales-Mendoza, Y. Shmaliy","doi":"10.1109/ICEEE.2013.6676074","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676074","url":null,"abstract":"A new time-variant forward-backward (FB) unbiased finite impulse response (UFIR) smoothing algorithm is addressed to denoise piecewise signals with known or well detectable breakpoints. The algorithm unites advantages of linear structures with robustness of the nonlinear ones. The FB UFIR smoother has been examined in Gaussian and Cauchy noise environments in a comparison to the myriad filter. It is shown that the solution proposed preserves edges without jitter, provides efficient denoising, and is sufficiently robust against the heavy-tailed noise.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125170339","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
First advances on the development of a hydroponic system for cherry tomato culture 樱桃番茄水培系统的研究进展
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676029
L. A. Velazquez, M. A. Hernández, Moises León, R. Domínguez, J. M. Gutiérrez-Salgado
{"title":"First advances on the development of a hydroponic system for cherry tomato culture","authors":"L. A. Velazquez, M. A. Hernández, Moises León, R. Domínguez, J. M. Gutiérrez-Salgado","doi":"10.1109/ICEEE.2013.6676029","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676029","url":null,"abstract":"Advances in the development of a hydroponic system for the cherry tomato culture based on the nutrient film technique are presented. The monitoring parameters for the nutritious hydroponic solution are the pH and the electrical conductivity. Sensors and conditioning circuits were designed and implemented to monitor such parameters. The physical irrigation system based on PVC tubing was designed and is presented as well. Preliminary results showed high accuracy on pH measurements with a correlation coefficient of 0.994 for expected values and a standard deviation of 0.01 after repeated measurements. The final goal is the integration of the developed sensors and circuits into a full control greenhouse system for a simple, easy to use and low cost soilless culture platform.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125594795","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: 31
Numerical study of Least Mean Square method for adjusting curves 曲线调整的最小均二乘法数值研究
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676090
J. A. Hernández, F. Gómez-Castañeda, J. Moreno-Cadenas
{"title":"Numerical study of Least Mean Square method for adjusting curves","authors":"J. A. Hernández, F. Gómez-Castañeda, J. Moreno-Cadenas","doi":"10.1109/ICEEE.2013.6676090","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676090","url":null,"abstract":"The adjustment of parameters within a function for modeling a set of observations is a very frequent task in many applied areas of science. There are sophisticated techniques to reach this goal, such as regression, use of gradients, neural networks, neurofuzzy modeling, genetic algorithms, swarm optimization, etc. In this paper numerical simulations are done about the efficiency and capacity of the Least Mean Square (LMS) algorithm to find an optimal set of parameters for adjusting a function to a set of observed data. Although the LMS method has been very used for minimization of errors and extraction of noise in signal processing systems, its capacities for regression and approximation have been not very often explored. Using simple examples, conditions on which the learning parameters can be adjusted to model a set of training data are explored, using a iterative learning process where the approximation of the stochastic error is recalculated immediately after any parameter is actualized. A description of the speed for convergence, as a function of the learning rate, is shown for the cases under study.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129739228","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
A feature selection methodology for breast ultrasound classification 乳腺超声分类的特征选择方法
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676056
C. Munoz-Meza, W. Gómez
{"title":"A feature selection methodology for breast ultrasound classification","authors":"C. Munoz-Meza, W. Gómez","doi":"10.1109/ICEEE.2013.6676056","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676056","url":null,"abstract":"In this paper we proposed a feature selection methodology for classifying breast ultrasound (BUS) images based on principal component analysis (PCA) and mutual information (MI). The BUS dataset consisted of 641 BUS images (228 carcinomas and 413 benign lesions). Besides, three M-dimensional feature sets were built: morphological (M = 22), texture (M = 502), and combined (M = 524). These sets were ranked by PCA and MI approaches, where the first feature presents the largest discrimination power between benign and malignant classes. Next, m-dimensional feature subsets (where m <; M) were created by adding iteratively the first m attributes. The .632+ bootstrap error was estimated at each iteration by using the Fisher discriminant analysis (FLDA) as classifier. Thus, at the argument of the minimum of the error curve is found the best m-dimensional feature subset. Finally, the area under ROC curve (AUC) was used as figure of merit to evaluate the discrimination power of selected features. The results pointed out that the best classification performance was reached by the “combined-MI” set with AUC = 0.951 and 13 features, whereas the “combined-complete” set attached AUC = 0.657 with 524 features.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127251549","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
Size reduction of volcano monopole antenna for personal communication applications 缩小个人通信用火山单极天线的尺寸
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676082
Berenice Borja-Benitez, E. Garduño-Nolasco, J. Sosa-Pedroza, L. Rodriguez-Mendez
{"title":"Size reduction of volcano monopole antenna for personal communication applications","authors":"Berenice Borja-Benitez, E. Garduño-Nolasco, J. Sosa-Pedroza, L. Rodriguez-Mendez","doi":"10.1109/ICEEE.2013.6676082","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676082","url":null,"abstract":"We present a computer analysis of three different size reduction techniques on a volcano smoke planar antenna. A successfully structure size reduction was obtained using high permittivity substrates, partial cuts insertion, and slots insertion. We compare sizes of original antenna and the one modified, using reflection coefficient S11, gain and radiation patterns as analysis parameters. The original bandwidth of 5.14 GHz is achieved with gains up to 8 dB and almost omnidirectional radiation patterns. The final structure has dimensions of 45 × 100 × 1.52 mm, representing a 62% size reduction of original design.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"34 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124254448","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
A posteriori error estimates of variational discretization mixed finite element methods for integro-differential optimal control problem 积分-微分最优控制问题变分离散混合有限元方法的后验误差估计
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676039
Zuliang Lu, Dayong Liu
{"title":"A posteriori error estimates of variational discretization mixed finite element methods for integro-differential optimal control problem","authors":"Zuliang Lu, Dayong Liu","doi":"10.1109/ICEEE.2013.6676039","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676039","url":null,"abstract":"In this paper we study a posteriori error estimates of all discretization parameters for quadratic convex optimal control problems governed by integro-differential equations by using the variational discretization mixed finite element methods. The state and co-state are approximated by the lowest order Raviart-Thomas mixed finite element spaces and the control is not approximated. By applying some error estimates results of mixed finite element methods for integro-differential equations, we derive a posteriori error estimates both for the coupled state and the control approximation of the optimal control problem.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127990462","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
Symbolic sensitivity analysis in the sizing of analog integrated circuits 模拟集成电路尺寸的符号灵敏度分析
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676069
A. Sanabria-Borbón, E. Tlelo-Cuautle
{"title":"Symbolic sensitivity analysis in the sizing of analog integrated circuits","authors":"A. Sanabria-Borbón, E. Tlelo-Cuautle","doi":"10.1109/ICEEE.2013.6676069","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676069","url":null,"abstract":"Sensitivity circuit analysis is useful for identifying tolerances of circuit elements to maintain circuit performance features under prescribed target specifications. In the case of integrated circuit (IC) sizing, it is helpful because an analog IC designer can know which elements should be more carefully designed. In this context, we present the application of a graph-based symbolic technique for deriving analytical expressions for differential gain, common-mode gain and then common-mode rejection ratio (CMRR) of operational transconductance amplifiers (OTAs). Afterwards, the sensitivity of each expression with respect to each transistor-parameter is symbolically obtained, and the expression is evaluated from an HSpice simulation. Finally, a comparison between the derived symbolic expressions and HSpice simulations is made to show that the circuit elements causing large sensitivities implies large performance variations.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125944910","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
Speed and current control of a permanent-magnet DC servo motor using a real-time microcontroller 用实时微控制器控制永磁直流伺服电机的速度和电流
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676065
J. Hernandez-Perez, Jesus Ebert Giral-Salas, R. Morales-Caporal, R. Ordoñez-Flores, Miguel Angel Morales-Flores
{"title":"Speed and current control of a permanent-magnet DC servo motor using a real-time microcontroller","authors":"J. Hernandez-Perez, Jesus Ebert Giral-Salas, R. Morales-Caporal, R. Ordoñez-Flores, Miguel Angel Morales-Flores","doi":"10.1109/ICEEE.2013.6676065","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676065","url":null,"abstract":"This paper presents the digital implementation of a double-loop feedback controller for speed and current regulation on a permanent-magnet direct current servo motor based on the real-time microcontroller TMS320F28335. The topology of the controller is based on a cascade control scheme; the speed controller (external loop) sets the reference of the current controller (internal loop). In this way, a high performance on the servo drive can be obtained. A online tuned Proportional-Integral controller regulates the speed reference, the armature current is regulated using a hysteresis controller. In order to make comparisons a single topology speed controller (one control loop) and cascade topology speed and current controllers (double control loop) are digitally implemented. Simulation results are validated by practical experimentation. Electrical drive and sensor platform were developed for the tests. Additionally a data acquisition system is proposed.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127514048","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: 7
Synchronization of complex networks of fractional order nonlinear systems 分数阶非线性系统复杂网络的同步
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676020
J. León, A. F. Lugo-Peñaloza, G. Fernández‐Anaya, R. Martínez-Martínez
{"title":"Synchronization of complex networks of fractional order nonlinear systems","authors":"J. León, A. F. Lugo-Peñaloza, G. Fernández‐Anaya, R. Martínez-Martínez","doi":"10.1109/ICEEE.2013.6676020","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676020","url":null,"abstract":"In this work we obtain analytical results for two different kinds of synchronization. This is obtained by means of the analysis of the fractional non-linear error equation, therefore the couplings inside the complex network do not eliminate the non-linearities of the systems, contrary to what is usual in literature. As an application, we present the synchronization with different kinds of fractional differential systems. We use some numerical results to verify the effectiveness of the proposed method.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"47 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113991241","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
Silicon Nitride anti-reflective coating for intermediate band InAs/GaAs PV devices 用于中间波段InAs/GaAs光伏器件的氮化硅抗反射涂层
2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) Pub Date : 2013-12-02 DOI: 10.1109/ICEEE.2013.6676062
E. Garduño-Nolasco, M. Missous
{"title":"Silicon Nitride anti-reflective coating for intermediate band InAs/GaAs PV devices","authors":"E. Garduño-Nolasco, M. Missous","doi":"10.1109/ICEEE.2013.6676062","DOIUrl":"https://doi.org/10.1109/ICEEE.2013.6676062","url":null,"abstract":"This paper presents the characterisation of several solar cell devices using a single layer of anti-reflective coating (ARC). Several devices, consisting of InAs/GaAs quantum dots cylindrical diodes, were fabricated and characterised. The main difference between the used materials is the inter-dot doping profile. The J-V characteristic for the devices has been obtained under 1 sun showing an increasing of the short circuit current density (Jsc) by almost 40% in the undoped dots sample. We show that the use of 100 nm of Silicon Nitride (Si3N4) enhance the efficiency by about another 2.5% resulting in efficiencies up to 11.6% for single junction diodes.","PeriodicalId":226547,"journal":{"name":"2013 10th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132110944","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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