2015 23rd Iranian Conference on Electrical Engineering最新文献

RLS based adaptive IVT2 fuzzy controller for uncertain model of inverted pendulum 基于RLS的倒立摆不确定模型自适应IVT2模糊控制器

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146334

M. Akbarzadeh-T., Masoud Bashari

引用次数: 0

Language identification based on improved training and classification 基于改进训练和分类的语言识别

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146206

E. Partovi, S. Ahadi, N. Faraji

引用次数: 0

Active magnetic field compensation system using proton precession scalar magnetometer for SQUID based applications 基于质子进动标量磁强计的主动磁场补偿系统在SQUID中的应用

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146433

J. Mazaheri, H. Kamrani, Farrokh Sareshtedari, M. Fardmanesh

{"title":"Active magnetic field compensation system using proton precession scalar magnetometer for SQUID based applications","authors":"J. Mazaheri, H. Kamrani, Farrokh Sareshtedari, M. Fardmanesh","doi":"10.1109/IRANIANCEE.2015.7146433","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2015.7146433","url":null,"abstract":"A sensitive proton precession scalar magnetometer has been implemented and used for the active compensation of magnetic fields. For establishing a silent environment for SQUID applications, two approaches might be considered, which consist of passive and active magnetic shielding [1]. Each of these two approaches has its own benefits. In active shielding approach, using vector sensors for the active shielding or calibration systems, has a main complication in precise alignment of the sensor and the coils. This is due to the fact that, the sensitivities and offsets of individual sensors, their mutual angular deviations, and the misalignment between the coil and the sensor reference system have to be exactly considered [2]. Because of these complications, scalar magnetometers have an advantage of more accuracy than vector magnetometers in calibration of active shielding. In scalar active compensation system, shielding is based on elimination (compensation) of external magnetic field by applying proper currents through different coils of the system. In this work a magnetic compensation system has been made based on proton precession magnetometer. Proton Precession scalar magnetometer is used for external magnetic field measurement and based on the measured signal, other processing and amplification circuits apply the compensation currents into the coils of the system [3]. The readout circuits of the sensor which is based on measuring of the precession frequency of Hydrogen atoms around the external magnetic field, has been designed with especial noise consideration for increasing SNR for maximum sensitivity. This system is to be used for different SQUID applications which require a very silent magnetic environment. It should be noted that the mentioned system could be also used for the calibration of the coil systems for vector magnetometer calibration.","PeriodicalId":187121,"journal":{"name":"2015 23rd Iranian Conference on Electrical Engineering","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115077406","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

Strain engineering of low-buckled two-dimensional materials based on tight binding approach 基于紧密结合方法的低屈曲二维材料应变工程

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146388

M. Mahmoudi, Davoud Adineloo, M. Fathipour

引用次数: 0

Verifiable identity-based mix network 基于可验证身份的混合网络

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146249

Mohammadhassan Ameri Ekhtiarabadi, H. Yajam, J. Mohajeri, M. Salmasizadeh

引用次数: 2

Reduced complexity joint decoding for turbo-coded wireless sensor networks 降低涡轮编码无线传感器网络联合解码的复杂性

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146201

J. Haghighat, F. Labeau, D. Plant, Samira Naderi

{"title":"Reduced complexity joint decoding for turbo-coded wireless sensor networks","authors":"J. Haghighat, F. Labeau, D. Plant, Samira Naderi","doi":"10.1109/IRANIANCEE.2015.7146201","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2015.7146201","url":null,"abstract":"We consider a data-gathering wireless sensor network, modeled by a Chief Executive Officer (CEO) problem. The Fusion Centre (FC) decodes data that are separately encoded at each sensor node by turbo codes. The CEO model introduces a correlation model between sensors' data. As shown in the literature, this correlation can be employed at the FC to perform a joint graph-based decoding. The optimal decoding is provided by the well-known sum-product algorithm; however, the sum-product summations impose a computational complexity that exponentially grows by increasing the number of sensors. In this paper, we propose a suboptimal joint decoding algorithm in which we first perform a reliability sorting and then we use a set of most-reliable nodes to update extrinsic information for other nodes. This algorithm exponentially reduces the decoding complexity compared to the sum-product algorithm and achieves BERs impressively close to the ones achieved by the sum-product decoding. We show by simulations that applying reliability sorting substantially improves the performance of the proposed algorithm. We also show that, by fixing the number of most-reliable nodes and increasing the total number of sensors, we could further reduce the average BER of the system, while keeping the same decoding complexity for joint decoding.","PeriodicalId":187121,"journal":{"name":"2015 23rd Iranian Conference on Electrical Engineering","volume":"38-40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116768385","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

An energy efficient gait trajectory planning algorithm for a seven linked biped robot using movement elements 基于运动单元的七连杆双足机器人节能步态轨迹规划算法

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146358

Amirhosein Khazenifard, F. Bahrami, M. E. Andani, M. N. Ahmadabadi

{"title":"An energy efficient gait trajectory planning algorithm for a seven linked biped robot using movement elements","authors":"Amirhosein Khazenifard, F. Bahrami, M. E. Andani, M. N. Ahmadabadi","doi":"10.1109/IRANIANCEE.2015.7146358","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2015.7146358","url":null,"abstract":"In this paper, a computational algorithm is introduced to generate energy efficient gait patterns. Each space cycle of gait has been decomposed to several phases, and boundaries of each phase are called via points. The algorithm uses six universal movement elements [1] together with kinematic information of the physical system at via points. We also developed an optimization procedure to obtain energy efficient kinematic information for the via points and called the new algorithm \"optimized-COMAP\". The algorithms was used to generate gait patterns for a human like, seven link biped robot. For the joint trajectories of the lower extremities of a optmized-COMAP have been used. Then a desired ZMP trajectory restricted into two upper and lower boundaries has been used to generate upper-body trajectory and to guarantee dynamic balance of the robot. The methodology was evaluated by simulating the model of the biped robot together with a closed loop feedback linearization controller. The proposed planning method can be applied to other mobile robots control systems as a structured pattern generator which just needs initial and final kinematic information of the physical system at via points.","PeriodicalId":187121,"journal":{"name":"2015 23rd Iranian Conference on Electrical Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127579547","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

Ultra optimized Y-defect waveguide for realizing reliable and robust all-optical logical AND gate 超优化的y型缺陷波导，实现可靠、稳健的全光逻辑与门

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146370

Mohammad Pirzadi, A. Mir

引用次数: 3

Adaptive extremum seeking control of a nonlinear system using backstepping technique 基于反演技术的非线性系统自适应求极值控制

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-07-02 DOI: 10.1109/IRANIANCEE.2015.7146350

Shakiba Yaghoubi, M. Dehghani, M. Khayatian

引用次数: 4

Inverse electromagnetic scattering of a dielectric cylinder buried below a slightly rough surface using a New intelligence approach 用一种新的智能方法研究埋在略粗糙表面下的介电圆柱体的反电磁散射

2015 23rd Iranian Conference on Electrical Engineering Pub Date : 2015-05-10 DOI: 10.1109/IRANIANCEE.2015.7146246

M. Shamsaddini, A. Tavakoli, P. Dehkhoda

{"title":"Inverse electromagnetic scattering of a dielectric cylinder buried below a slightly rough surface using a New intelligence approach","authors":"M. Shamsaddini, A. Tavakoli, P. Dehkhoda","doi":"10.1109/IRANIANCEE.2015.7146246","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2015.7146246","url":null,"abstract":"This paper presents a new intelligence method, based on an inverse scattering technique and a New Adaptive Shuffled Frog Leaping Algorithm (NASFLA), to detect the radius, permittivity and location of a buried 2-D circular cylinder under a slightly rough surface. In the proposed approach, the suggested improved NASFL algorithm minimizes the difference between the measured information of an unknown buried cylinder and the obtained simulation results through the iterations of a forward problem. In order to speed up the computations, an analytical method is proposed as the forward solution. This analytical method utilizes the small perturbation method (SPM) for the scattering from the slightly rough surface and considers all multiple interactions between the rough surface and the buried cylinder. On the other hand, the synthetic measured data is obtained by using the method of Moments (MoM). Furthermore, in this paper, a new adaptive frog leaping rule is proposed to enhance the local exploration, performance and quicker algorithm convergence. To show the effectiveness and accuracy of the proposed method, the inverse scattering from a dielectric circular cylinder buried under a slightly rough surface, with sinusoidal profile, is simulated for a TM polarized incident wave. The obtained results show the capability of the suggested approach to determine the parameters of the buried object.","PeriodicalId":187121,"journal":{"name":"2015 23rd Iranian Conference on Electrical Engineering","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115422039","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