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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 9,199 Documents
 176   177   178   179   180 
A New Evidence Combination Method Based on Consistent Strength Changming Qiao; Shuli Sun
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 11: November 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

A lot of practical applications show that DS (Dempster-Shafer) theory of evidence cannot deal with highly conflicted evidence. For this problem, Murphy proposed a method to solve it by modifying source model of evidence. But this method just calculated the mean of the conflicted evidence and didn’t pay much attention on their correlation. Based on the combination method of Murphy, a new method to calculate the weighted average of the conflicted evidence using consistent strength is proposed by taking the correlation into account. The proposed combination method can combine highly conflicted evidences to be more satisfactory. A numerical example shows the effectiveness of the proposed method. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3585
Intelligent Network Temperature and Humidity Measuring System Based on USB Interface Zhiguo Huang; Zhixin Huang; Xihe Cui; Shengli Han
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 5: May 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

Multi digital output relative humidity and temperature sensors-SHT71 were set network monitoring points in the system, which can measure at any moment, timing, real-time temperature and relative humidity per point of the environment by-turn. Temperature-humidity value, dew-point value, date and time per point were displayed by lattice graphics LCM (Liquid Crystal Display Module) HY-12864K. At the same time, they were saved in nonvolatile FRAM (Ferroelectric Random Access Memory) FM31256, which can assure data do not lose after the power of the system fail. Acquired data can be uploaded directly to PC in the USB-HOST mode or be copied indirectly to PC far away from testing field by flash disk in the USB-DEVICE mode. The application software not only can draw temperature, humidity and dew-point curve and calculate maximum, minimum, average, but also can make further statistical analysis, report forms printing and set-up basic measure parameters of the system. DOI : http://dx.doi.org/10.11591/telkomnika.v12i5.5114
An Improved Cognitive Radio Spectrum Sensing Algorithm Dengyin Zhang; Kuankuan Li; Li Xiao
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 2: February 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

To improve the cognitive radio user’s detection performance and reduce the complexity, this paper composites the Fractal box dimension algorithm and the 3th-order cyclic-cumulate (TCC) algorithm and improves the TCC algorithm, so a novel detection algorithm is proposed that the Fractal box dimension is used when the signal to noise (SNR) is high, while the improved TCC algorithm is used when the SNR is low. This new algorithm not only avoids using TCC algorithm with high complexity when the channel environment is good, but also reduces the decision complexity of TCC algorithm. Simulation result shows that this algorithm obtains good detection performance with lower complexity than the traditional TCC algorithm. DOI: http://dx.doi.org/10.11591/telkomnika.v11i2.1980
Intensity and Trustworthiness Awake Delay Perceptive Routing for Submarine WSNs Devakumar Devakumar; V. Balamurugan
Indonesian Journal of Electrical Engineering and Computer Science Vol 9, No 3: March 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v9.i3.pp546-548

Abstract

Submarine Wireless Sensor Networks (SWSNs) have earned important concentration of both university and manufacturing in current years. In this paper, we introduce intensity and trustworthiness awake delay perspective (ITADP) routing protocol for submarine WSNs. We get inspiration from Submarine Opportunistic Routing (SOR) protocol that explains expected end-to-end latency from Sender sensor to sink. We consider two faults in SOR. Initially, in SOR protocol, sensor transmit the information to intermediate node that have higher trustworthiness missing the depth of the forwarder node, thus create more hop counts. The coordination time of intermediate sensor cluster is second fault that increases the latency. Thus, we introduce Intensity and trustworthiness awake routing in submarine WSNs.
Design and implementation of AMBA bridge protocol in system on chip design Wang Hang Suan; Asral Bahari Jambek; Mohd Nazrin Bin Md Isa; Azizi bin Harun; Shaiful Nizam Bin Mohyar; Zulfiqar Ali Bin Abd. Aziz
Indonesian Journal of Electrical Engineering and Computer Science Vol 14, No 2: May 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v14.i2.pp788-795

Abstract

The Advanced Microcontroller Bus Architecture (AMBA) is widely used in modern technology device. The design of bridge in the system is due to increase demand of power consumption and functionality. The bridge help to reduce power by separate the system into high bandwidth and low bandwidth. The goal of this paper is to design and implement the AMBA bridge into a SoC design which consists of a processor, RAM, ROM, watchdog and LED module. These peripherals are connected separately based on different bandwidth with a bridge as the medium. The result shown the bridge transfer a correct data from the ROM into the RAM. The experiment was carry out using Synopsys 2017 and Keil uVision.
Study on Pattern Reconfiguration of Plasma Antenna Excited by Surface Wave Zhu Anshi; Chen Zili; Wei Jianbin; Zhen Yunhui
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 9: September 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i9.pp6658-6666

Abstract

For the purpose of anti-jamming communications, the radiation pattern reconfiguration of plasma antenna excited by surface wave were studied. The self-consistent model used to describe the relation between the pump signal and radiation pattern is put forward by combining the Boltzmann Equation and Maxwell Equation. And the correctness of the model is validated by using FDTD approach. The experiment system that used to measure the radiation pattern is established to validate the correctness of the self-consistent model. The investigation results show that the radiation pattern are reconfigurable by controlling the pump signal.
Study on Defect Detecting and Locating Method of Tubular Cylindrical Conductor Yinchuan Wu; Baolong Guo; Jiatian Zhang; Zhengguo Yan
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 6: June 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper is to present a defect detecting and locating method of tubular cylindrical conductor based on alternating current impedance measurement theory. A defect estimation  can be made through the impedance measurement of some distance on the inner and the outer surfaces of the tubular cylindrical conductor. A defect in the thickness direction can be located by the skin effect influence on impedance and the frequency change in exciting current. The results show that: this method can effectively identify and locate a defect, and therefore should be promoted in the defect detecting of metal materials in other shapes. DOI: http://dx.doi.org/10.11591/telkomnika.v11i6.2676
A high frequency reflected current signals-based fault type identification method Shwe Myint; Warit Wichakool
Indonesian Journal of Electrical Engineering and Computer Science Vol 17, No 2: February 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v17.i2.pp551-563

Abstract

The main objective of this paper is to identify fault type and faulted phase focus on the time delay values of reflected phase and modal current signals. The proposed method identifies fault type with the help of amplitude maxima of detail wavelet coefficient of residual current. The time delay values of phase and modal current reflected signals are used to detect faulty phase instead of using threshold values. Using time delay as a fault type identification parameter is achieved to save the overall protection system operating time because time delay is also the main feature of traveling wave fault location method. Moreover, to ensure the applied wavelet filter, the proposed algorithm is tested with the detail information of the three mother wavelets, such as db4, db6 and db8 and chosen the highest classification accuracy. Various disturbance events were tested with changing different possible fault types, faulted-feeders, fault resistances, fault locations and fault inception times on a loop distribution system. The robustness of the proposed faulted phase selection algorithm is performed through MATLAB Simulation.
Wideband Dual-linear Polarized Stacked Patch Antenna with Asymmery Feeding Qingyuan Fang; Song Lizhong
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 1: January 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

The narrow working bandwidth of microstrip antennas limits their applications in in radar and communication systems. Staked patch antenna based on aperture coupling and asymmetry feeding technique was proposed in this paper. A cross-shape aperture imbedded in the ground plane with asymmetry feeding structure provided a relative wideband electromagnetic coupling and allowed a high isolation between two orthogonal ports.The asymmetry feeding structure was composed of two microtrip lines locating above and under the ground plane. U-shape microtrip line adjusted microstrip feeding line characteristic impendence with antenna input impendence in a broad band. Experimental results indicated that an impendence bandwidth of 35.3%, better than 4.5dBi antenna gain, better than 30dB isolation and good cross-polarization were available. Measured results proved that stacked patches using asymmetry feeding structure through aperture coupling to expand working frequency and realize dual-linear polarization was effective. DOI : http://dx.doi.org/10.11591/telkomnika.v12i1.3974
Voltage Flickering Reduction Using Distribution STATCOM Yahia M Esmail; S K Elsayed; M A Mehanna
Indonesian Journal of Electrical Engineering and Computer Science Vol 4, No 2: November 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v4.i2.pp263-270

Abstract

Power Quality is becoming intensity concerned from both electric utilities and customers. Voltage Flicker is a major power quality problem as it has a significant impact on both the equipment and production environment. This work describes the voltage control technique of reduction of voltage flicker and clearing fault using Distribution Static Synchronous Compensator (DSTATCOM). The test system used is IEEE 9-bus distribution system clarified the optimal location of DSTATCOM by using Artificial Neural Network. A simulation was done using MATLAB/Simulink software.

Page 178 of 920 | Total Record : 9199

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