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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
The Recognition of Stored Grain Pests Based on The Gabor Wavelet and Sparse Representation Liang Hong Fu; Jing Lu
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 order to improve the recognition rate and accuracy of stored grain pests classification, saving classification time, a new recognition method based on the Gabor wavelet and sparse representation is proposed in this paper. In this paper, nine typical pests in the stored grain are regarded as the research object, Gabor energy features and morphological features are extracted, principal component analysis is used to reduction dimension and sparse representation is used to achieve the classification of stored grain pests. Simulation results show that, Gabor energy feature is a better choose for grain pests classification, and the overall performance of Gabor features and sparse representation is better than the traditional classification methods. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.4860
Construction and Application of Virtual Reality Geographic Information System Ke Xi-Lin; Guo Qing-Sheng; Zhang Yue-Peng; Zhou Yan
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 the paper, virtual reality geographic information system is discussed and the related technologies involves the concept, characteristics, classification, key technology, and the main application and development situation , it analyzes the virtual reality technology and the necessity of combining geographical information system technology. As to the design and development process of the whole system, including the system's user interface, system requirements, the structure of the system design, system development model and related technology are discussed in this paper. In view of the virtual reality geographic information system technology, the 3-D (three Dimensional) spatial data acquisition, 3-D data model and digital terrain model and digital elevation model and 3-D data of level of detail model and the expression of 3-D data visualization, etc, on the basis of theoretical research, with the help of a professional virtual reality modeling software MultiGen Creator, it builts the scenic spot of the 3-D environment. And it presents the virtual scene modeling process on the basis of MultiGenCreator complex modeling, the implementation plan, scene modeling method are also given out. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.4872
The Design of Fine-grained Network QoS Controller and Performance Research with Network Calculus Hu Jia; Zhou Jinhe
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.pp4468-4474

Abstract

In this paper a network QoS controller is designed. We use the controller to quantification ally control QoS under the random network traffic. The controller is built by min-plus algebra based on network calculus. The controller includes two parts, the lossless fractal regulator and the finite variable storage shaper (FVSS). We can get the arrival curve with the lossless fractal regulator. Then the FVSS control network traffic to realize the fine-gained QoS controller. At last, we analyze the performance of the network QoS controller. Research results show that the relationship between packet losses, packet delays and the buffer storage. We clearly observe the change of the packet loss and the packet delay with the storage of buffer. The results can be applied to evaluate the congestion and flow control strategies, as well as these are references to design network control device parameters. DOI: http://dx.doi.org/10.11591/telkomnika.v12i6.5484
Design and Implementation of Universal Serial Bus Transceiver with Verilog Liqun Xu; Likun Zheng; Yali Chen; Zheying 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

In this paper, a simplified Universal Serial Bus (USB) transceiver is designed, which is special used for mobile terminals such as smart mobile phone, IPad, smart sensor, and so on. The transceiver includes functions such as data serialization, bit stuffing, NRZI encoding and NRZI decoding, bit unstuffing, deserialization. The transceiver is designed and implemented with Verilog HDL in Modelsim. And the transceiver has been verified with FPGA and synthesized using 0.18um 1P6M CMOS process technology. The simulation and FPGA results show that the transceiver satisfies all design specification and can be used as an IP core for smart mobile terminals. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5441
Impact of Missing Data on EM Algorithm under Rayleigh Distribution Zhendong Li; Mengmeng 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

Is EM algorithm parameter estimation under Rayleigh distribution sensitive to missing data and if it is, what extent is it? By designing computer simulation methods, contrast and analyze the results of maximum likelihood estimation with complete data and EM algorithm estimation under different missing rate in small sample. It shows that the results were almost identical when the missing rate is below 0.30, but the efficiency of EM parameter estimation gradually deteriorates as the missing rate increases. Meanwhile the results also show that the EM algorithm is sensitive to sample size and the selection of initial value. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5491
Deployment of TinyOS for Online Water Sensing Xin Wang; Pan Xu
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.pp4802-4807

Abstract

Current quality assessment methods of water parameters are mainly laboratory based, require fresh supplies of chemicals, trained staff and are time consuming. Sensor networks are great alternatives for such requirements. We present a practical application of wireless networks: a remote water monitoring system running TinyOS. The contents of several chemicals in the water are sensed and transmitted. The sensor data are collected and transmitted via ZigBee and GPRS. Instead of focusing on theoretic issues such as routing algorithms, network lifetime and so on, we investigate special techniques involved in the implementation of the system while employing TinyOS and its special programming language.
Optimal Vibration Controller for Vehicle Active Suspension System under Road Roughness Disturbances Shi-Yuan Han; Gong-You Tang; Yue-Hui Chen; Guang-Peng Li; Xi-Xin Yang
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 problem of optimal vibration control for vehicle active suspension systems under road rough-ness disturbance is considered. First, the models for two-degree-freedom quarter-car suspension systemunder road roughness disturbance are presented, and road disturbances are considered as the output of anexosystem. Then, the feedforward and feedback optimal vibration control (FFOVC) law for vehicle active sus-pension systems is obtained and the existence and uniqueness of the FFOVC is proved. A state observeris designed to solve the problem of the physically realizable for the feedforward compensator. Numericalsimulations illustrate the effectiveness of the FFOVC law. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.4380
Development of Video On Demand Server Based on LiveMedia and Improved Cycle Patch Algorithm Guimei Bai
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 disadvantage of patching algorithm is that the generating multicast flow disorder and cycle patch algorithm solved the above problems. Improved Batch processing cycle patch algorithm has better treatment effect for large scale emergency request, and has a good effect in demand on demand for hot programs or prime time, can effectively increase the number of users. The main function of the LiveMedia library is implemented on a variety of media types and coding format support. The paper presents development of video on demand server based on LiveMedia and improved cycle patch algorithm. The test curve showed that patch cycle algorithm can provide service for more users in the same bandwidth, can effectively increase the number of concurrent users. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5015
Underground Image Denoising Zhang Ye; Jia Meng
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

A Mixed Window Shrink and BayesShrink Image Denoising Algorithm Based on Curve let Transform is proposed in this paper. Curve let transform is effective in presenting line and surface property of image. In the proposed algorithm, Curvelet transform is employed for the first stage, then according the theory of image demising method based on Wavelet transform, we combine Window Shrink and BayesShrink denoising algorithm to perform noise reduction. Experiment results show that the proposed algorithm is competitive to Wavelet transform in terms of Peak Signal to Noise Ratio (PSNR) and denoising image quality.  DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5479
A Relaying Scheme for Terrestrial Digital Multimedia Broadcasting (TDMB) Cooperative Network Jin Ren
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

Terrestrial Digital Multimedia Broadcasting (TDMB) is one popular broadcasting standard that enable digital television transmissions to hand held receivers and cooperative system take advantage of the broadcast nature of wireless channels, uses relay stations as virtual antennas. Relay stations are an attractive solution to penetrate the wireless system with lower transmitting power at the Base station. In this paper, we presented a scheme can switch on/off the power weighting ratio between Base station and Relay station in TDMB cooperative Network. It will control the active relays in different channel propagations effectively. DOI : http://dx.doi.org/10.11591/telkomnika.v12i6.5399

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