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INDONESIA
Indonesian Journal of Electrical Engineering and Computer Science
Published by Institute of Advanced Engineering and Science
ISSN : 25024752     EISSN : 25024760     DOI : -
Core Subject :
Arjuna Subject : -
Articles 101 Documents
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Search results for , issue "Vol 12, No 6: June 2014" : 101 Documents clear
Magnetic Resonance Imaging Fusion by 3D Compactly Supported Shearlet Transform Chang Duan; Qihong Huang; Shuai Wang; Xuegang Wang; Hong Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

T2* and Quantitative Susceptibility Mapping (QSM) Magnetic Resonance Imaging (MRI) volume provide different type inner structure information of scanned organs. If they can be properly fused into one volume, the details of the organ can be more clearly revealed. In this paper, a 3D MRI volume fusion method based on 3D Compactly Supported Shearlet Transform (3D-CSST) and 3D Dual Tree Compactly Supported Shearlet Transform (3D-DT-CSST), is proposed, which can overcome the limitation, loss of inter layer correlative information, of conventional 2D image fusion methods. 3D-DT-CSST is our modification of 3D-CSST, which is approximate shift invariant. It can improve the performance of fusion method. The proposed method is evaluated by 4 groups of MRI volumes of human brains. The experiment suggests the proposed method has a better performance than conventional 2D wavelet, 2D DT-CWT and 3D wavelet, 3D DT-CWT based fusion methods, and 3D-DT-CSST based method is better than 3D-CSST based method. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.4268
A Power Effective Algorithm for State Encoding Anping He; Hao Wu; X. Song; Jinzhao Wu
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Reducing the area and power dissipation of FSM circuit is of significant importance for EDA technology. Many methods are adopted to achieve an effective and fast transformation of FSMs to binary codes, including Genetic algorithm (GA) and others. In this paper, we propose a GA based state assignment of a FSM circuit to gain the minimization of power consumption and area. We modify the traditional mutation to be an ordered operation, which is also a substitution of the crossover that guarantees every new individual owns better fitness than the old one. We test the proposed algorithm with benchmarks, as well as do the comparison with the published; our method saves both power and area dissipation in reasonable computation time. DOI: http://dx.doi.org/10.11591/telkomnika.v12i6.5482
Multiple-Input Single-Output Wireless Power Transmission System for Coal Mine Duan Zhao; Enjie Ding; Xin Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

In Wireless Power Transmission (WPT) systems, the proportion of energy received by the load is critical and the efficiency is the more significant parameter. The magnetic multiple input algorithms as well as many multiple overlapping coils structures in the transmitter side are proposed for the coal mine Internet of the Things (IOT) nodes. Different phase shifts cases for the input signal were considered to study their effect on the efficiency. Simulation results showed that the axial component of magnetic induction resulted from the multiple overlapping coils structure has preferable homogeneous distribution over the traditional single input coil. The proposed system achieved an efficiency value of 60 % for a receiver placed 40 cm away from a 4 coils transmitter comparing to an efficiency value of 50% for the same distance using a single coil transmitter. Simulation results shows that the proposed model is well adapted for the movable charging mode for the IOT nodes in coal mine. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5439
Robust Weighted Measurement Fusion Kalman Predictors with Uncertain Noise Variances Wen-juan Qi; Peng Zhang; Gui-huan Nie; Zi-li Deng
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

For the multisensor system with uncertain noise variances, using the minimax robust estimation principle, the local and weighted measurement fusion robust time-varying Kalman predictors are presented based on the worst-case conservative system with the conservative upper bound of noise variances. The actual prediction error variances are guaranteed to have a minimal upper bound for all admissible uncertainties of noise variances. A Lyapunov approach is proposed for the robustness analysis and their robust accuracy relations are proved. It is proved that the robust accuracy of weighted measurement robust fuser is higher than that of each local robust Kalman predictor. Specially, the corresponding steady-state robust local and weighted measurement fusion Kalman predictors are also proposed and the convergence in a realization between time-varying and steady-state Kalman predictors is proved by the dynamic error system analysis (DESA) method. A Monte-Carlo simulation example shows the effectiveness of the robustness and accuracy relations. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5453
Design of an Optical Emitting System for Scannerless Imaging LIDAR Based on ZEMAX Muhmmad Rizwan Anjum; Wang Xiaowei; Khanzada T. J. S.; M. A. Shaheen
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i6.pp4825-4832

Abstract

Optical emitting system is an essential part of scannerless imaging LIDAR. It plays an important role in decreasing the divergence angle and homogenizing the beam spot which have an immense influence on the light signal back from the target. This research work proposes the design of the system using ZEMAX model also determine the includes shaping and zooming features of design model. In the shaping system feature we used two cylindrical lenses whose accurate positions have been solved by using the theories of matrix optics and Gauss optics. The cam curve of a three-group zoom system with (2x-7x) zoom ratios has been drawn. The simulation results verify the availability that the beam from the laser diode meets the requirements after optical emission from system.
Design and Implementation of Probe Driver Teleoperative Force Feedback System Amjad Ali Syed; Xing-guang Duan; Arbab Nighat Khizer; Mengli Mengli; Xiangzhan Kong; Qiang Huang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The basic need of neurosurgery is to insert the probe into the key hole linearly for performing functional neurosurgery, trigeminal neuralgia surgery, biopsies, deep brain stimulation, and stereo-EEG. Recently, tele-robotic systems have been introduced to assist surgeon during invasive procedures to obtain desired results. In this paper, a linear probe driving tele-operative system with force feedback is proposed. The proposed system is highly accurate, stable, and safe and provides haptic transparency to the surgeon during its operation. The master slave architecture, control system and software application are designed to inject and eject probe driving trials. The experiments are performed on a piecewise linear Plasticine model. The accuracy, stability, repeatability of the system and haptic force feedback fidelity are discussed in the results.  DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5277
Internet of Things as Intimating for Pregnant Women’s Healthcare: An Impending Privacy Issues Mir Sajjad Hussain Talpur; Murtaza Hussain Shaikh; Riaz Ali Buriro; Hira Sajjad Talpur; Fozia Talpur; Hina Shafi; Munazza Ahsan Shaikh
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Ingeniously, the innovations are taking place in current medical era, where IoT is a key and its related technology plays a dynamic role in pregnant women care taking inside hospital and outside. IoT ensure the effective and efficient care of pregnant women in any environment because intelligent tiny devices like RF-Tags, sensors are attached with pregnant women, and all the activities of pregnant women can be monitored by professional medical staff from anywhere and anytime. The usage of these advanced technologies in pregnant women care environment, absolutely eradicates the pregnancy complications and harmful incidents, but also raises privacy, religious, ethical, legal and social issues. The purpose of this paper is to discuss the usage of IoT in pregnant women healthcare environments and articulates endorsements to promote research then can guarantee that the pregnant women’s privacy is preserved. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.4227
Photovoltaic Technology and Electricity Saving Strategies for Fixed-Velocity-Measuring System ZhangLi Lan; Jian Li
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The power supply methods for fixed-velocity-measuring system (FVMS) based on photovoltaic (PV) technology are proposed after analysis and comparison among the current methods for FVMS on freeway. According to the sunshine condition in typical low sunshine areas, all components consist of PV system are specially designed, including the related maximum power point track (MPPT) technology for solar panel and the charge-discharge algorithm for storage battery in the dedicated controller. Targeted electricity saving strategies for FVMS on freeway are put forward. Experimental results show high efficiency and stability of the dedicated controller and in practical application, the specially designed PV system in this paper can provide continuous electric power supply throughout a year in an efficient way, and the output voltage and frequency are stable. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5477
Research on Backlash Nonlinearity in AC Servo-driven Precision Transmission System Wei Zhou; Ling Zhao; Xiaolun Li; Lihong Lin
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

AC servo-driven precision transmission system is mainly composed of AC servo motor, mechanical transmission parts and control parts. Because of mutual coupling between various parts, particularly transmission system in mechanical coupling vibration in non-smooth transition, it will be of great harm to safe operation of the system. This paper made some overview and built the model of AC servo-driven precision transmission system mainly from the perspective of backlash nonlinear characteristic and with simulation tool of Matlab/Simulink to analyze the influence of backlash on the precision of servo system, and then corresponding simulation curve and conclusions were shown in this paper. Do hope the work above will have certain reference significance to actual engineering application. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5394
Research of a New Non-Layer Protocol Architecture for Satellite Network Lixiang Liu; Dapeng Wang; Lu Wang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 6: June 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The traditional hierarchical network architecture has the defect of redundancy and no interaction between the layers. These defects have bad impact on QoS and network security. Hierarchical network protocols are difficult to be used to satellite network. This paper analysis the different network protocol architecture and propose a new network protocol architecture for satellite-Component-based network architecture, this architecture is proposed for eliminating of hierarchical network design flaws. Network protocols will be divided according to the function for forming of low coupling functional components. It provides high quality services to the application using combined components. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5448

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