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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 :
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Articles 100 Documents
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Search results for , issue "Vol 11, No 11: November 2013" : 100 Documents clear
Model Reference Adaptive Speed Control of 2-Phase Travelling Wave Ultrasonic Motor Zhang Wen Yu; Shi Jing Zhuo
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

Adopting relatively simple motion control algorithm, helps reduce the cost of ultrasonic motor system including the drive control circuit, so as to promote its industrialization. For this purpose, this paper presents a simple model reference adaptive control strategy. The small amount of calculation of the policy, and with a certain degree of adaptive capacity, improves the system cost-effective.DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3551
Instruction Pipeline Efficient Mechanism with maximum hit ratio Shahnawaz Talpur
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

To achieve highest performance in rapidly growing advancement in multi-core technology, there is need to minimize the large gap between faster processor speed and memory. It becomes more critical issue when branch occurs with penalty of cache miss. Many researchers proposed different branch prediction, instruction perfecting methods and algorithms but the CPU pipeline performance couldn’t be the maximal. A prototype model has been designed in this paper which has no prediction for branch and no chance of CPU core to be idle. Analysis is carried out on the benchmarks suite and Transactional Slice (TS) has been proposed in contrast with traditional delay slot and dynamic prediction fetch branch. In proposed mechanism hit rate will be maximal.  Pin Tool is used to analyze the Transactional Slice with SPEC 2006 benchmark. DOI:  http://dx.doi.org/10.11591/telkomnika.v11i11.3216 
A High Performance Sigma-Delta ADC for Audio Decoder Chip Yu Fan; Yang Huijing; Li Gang
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

This paper gives a high performance sigma delta Analog to Digital Converter (ADC) applied in computer audio decoder chip. In this design, a 3rd-order single-loop CIFF topology is chosen to achieve the high performance ADC. Its signal bandwidth is 20KHz, sampling frequency is 10.24MHz and oversampling ratio is 256. Local feedback coefficient is used to reduce quantization noise. The non-linear model of modulator is given and the stability is analyzed. It is got that when quantizer gain is bigger than 0.322 the system is stable. According to simulation, Signal to Noise Ratio (SNR) is 123.1dB and Effective Number of Bits (ENOB) is 20.15bits. When input level is bigger than -3dBFs, the modulator is overload and becomes unstable. Then the integrator, quantizer and feed forward summation in ADC circuit are designed.  Then the ADC is implemented in 0.6um CMOS process, and the test result shows that its performance is 99.28dB. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3498
DC Power System of Electric Vehicle Zhang Liwei; Wang Xiao; Zhang Yujin
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

In recent years, environmental and energy problem has become one of the world's hot spot problems. Today, the road cars not only consume a lot of oil resource, but also cause serious pollution to human survival environment. Therefore, to save energy and protect environment, a green environmental friendly electric car instead of fuel car will be needed for sustainable development of the society. Electric vehicle has no pollution, low noise, high efficiency, diversification, simple structure and convenient maintaining; the development of green cleaning electric vehicle is the trend, and the inevitable choice. The power supply system of electric vehicle can be divided into three parts, the battery charging system, motor drive system and dc load power supply system. This paper mainly studies the dc load power supply system. Main function is to convert the high-voltage of the battery in the electric vehicle into low voltage output, provide the power supply for the low voltage dc load, including the car safety system, windshield wiper system, audio system. On the basis of the analysis of the parameters, this article designs the converter, sets up the principle prototype, analyzes the experimental results and finally makes conclusion. The vehicle power supply is green, environment friendly, high-efficiency, digital and intelligent.  DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3511
Ship Dynamic Positioning Systems Based on Fuzzy Predictive Control Wang Liyun; Xiao Jianmei; Wang Xihuai
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

Dynamic Positioning Systems (DPS) is a technique of automatically maintaining the position of vessels within the specified limits by controlling thrusters. This paper introduces a fuzzy predictive control to position vessels. Firstly, the mathematical model of vessel is created and simplified. Then, we use feed-forward compensation to decouple the system. The T-S model is identified by Fuzzy C-Means clustering algorithm and Least Squares method. After that, we use Generalized Predictive Control (GPC) to control the ships in three degrees of freedom (DOF)-surge, sway and yaw. The simulation results show that the fuzzy predictive control can orient the vessels effectively.  DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3527
The Research of Design Dynamics on Behavior Flow Ecosystem Hao Yongtao; Chen Bihuan; Lou Diming
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

We analyze the current product design modeling background and status, combined with the design dynamics, propose more intelligent design of the product behavioral modeling. by analogy Ecosystem, proposed the concepts and design framework product flow behavior and product behavior flow of the ecosystem. Proposed the concepts of design entropy flow and conservation in design dynamics, put forward a hybrid Petri nets to describe the flow behavior and formal product ecosystem model, a hybrid Petri net is given to the behavior flow ecosystem model and analyze engine and the design entropy. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3552
In the Network Communication An Improved Algorithm of Image Watermarking Based on DWT Yun KE
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

This paper discussed an improvement algorithm of image digital watermarking based on the discrete wavelet transform（DWT）and singular value decomposition(SVD). In this algorithm, a good characteristics of multiresolution and time-frequency local analysis of discrete wavelet transform combining with image intrinsic algebraic properties of SVD. After decomposing the original host image into four bands, we apply the SVD to watermark image and modify DWT coefficients of the host image with the singular values of the watermark image.Experimental results show that this new image watermarking algorithm has a good imperceptibility of embedded watermark image, security and robust against common attacks such as filtering, geometric, attack, JPEG compression and rotation. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3404
Application of data fusion in computer facial recognition Wang Ai Qiang; Han Min
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

The recognition rate of single recognition method is inefficiency in computer facial recognition. We proposed a new confluent facial recognition method using data fusion technology, a variety of recognition algorithm are combined to form the fusion-based face recognition system to improve the recognition rate in many ways. Data fusion considers three levels of data fusion, feature level fusion and decision level fusion. And the data layer uses a simple weighted average algorithm, which is easy to implement. Artificial neural network algorithm was selected in feature layer and fuzzy reasoning algorithm was used in decision layer. Finally, we compared with the BP neural network algorithm in the MATLAB experimental platform. The result shows that the recognition rate has been greatly improved after adopting data fusion technology in computer facial recognition. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3384
Autonomy Domain Trust Model in Manufacturing Grid Based on User Trust Agent Junyu Xiao; Zhangwei Yang; Feng Jiang
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

Trust security is one of the hotspot in manufacturing grid. The paper proposes a trust model to suit for manufacturing grid, based on domain trust model. It manages trust value of grid user from the introducing of user trust agent in autonomy domain. Furthermore, it considers the impact of time decay and the punishment of malicious transactions. The model is effective in reducing the malicious transaction of grid user to improve security of manufacturing grid through analysis and experiment simulation. DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3493 
Analyzing Head and Eye Movement System with CORBA Wang Changyuan; Zhang Jing; Chen YuLong
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

In order to study the vestibular system in different organs of movement as well as their collaboration between working mechanism, this paper designs a model of the common object request broker architecture (CORBA) for the head and eye movement system based on the vestibular function. By analyzing physiological characteristics of the head and eye movement model, and further introducing the structure features of CORBA. It focus on the component composition and the model design of CORBA components library. According to the physiology work model of head and eye movement, the CORBA model of head and eye movement is established. As well as the structure of the model is designed in real application of head and eye movement measurement system. This paper provides a new way to research the head and eye movement system through using mathematical modeling and application structure which is based on vestibular function.  DOI: http://dx.doi.org/10.11591/telkomnika.v11i11.3506

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