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2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)最新文献

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FPGA based microstepping scheme for stepper motor in Space-Based Solar Power Systems 基于FPGA的天基太阳能发电系统中步进电机微步进方案
2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2012-09-17 DOI: 10.1109/ICIINFS.2012.6304771
N. Anish, D. Krishnan, S. Moorthi, M. Selvan
{"title":"FPGA based microstepping scheme for stepper motor in Space-Based Solar Power Systems","authors":"N. Anish, D. Krishnan, S. Moorthi, M. Selvan","doi":"10.1109/ICIINFS.2012.6304771","DOIUrl":"https://doi.org/10.1109/ICIINFS.2012.6304771","url":null,"abstract":"Space-Based Solar Power (SBSP) systems require high precision in positioning of the photovoltaic panels, which can be attained through the use of stepper motors. The precision of the shaft movement can be improved by employing a microstepping scheme in the stepper motor controller. Microstepping renders to advantages which include dynamics with high precision, accurate positioning, ripple reduction and attenuation of mechanical resonance. The present paper focuses on the hardware implementation of a high performance FPGA based algorithm developed using Very High Speed Integrated Circuit Hardware Description Language (VHDL) for a microstepping scheme of a stepper motor for solar-tracking of photovoltaic panels in SBSP.","PeriodicalId":171993,"journal":{"name":"2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128907167","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: 15
Bandwidth efficient error reselience technique for enhancement layers of the scalable extension of H.264/AVC H.264/AVC可扩展增强层的带宽高效容错技术
2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2012-09-17 DOI: 10.1109/ICIINFS.2012.6304783
M. B. Dissanayake
{"title":"Bandwidth efficient error reselience technique for enhancement layers of the scalable extension of H.264/AVC","authors":"M. B. Dissanayake","doi":"10.1109/ICIINFS.2012.6304783","DOIUrl":"https://doi.org/10.1109/ICIINFS.2012.6304783","url":null,"abstract":"The motion information of an encoded video data stream plays a vital role in frame reconstruction, compared to its residual information. Hence, it is sensible to provide extra protection for the motion information. The proposed system is implemented based on the existing redundant coding algorithm of H.264/AVC and it provides extra protection only for the motion information. The paper analyzes the effect of proposed error resilience technique on enhancement layer picture quality. The performance of the algorithm is evaluated under both error free and error prone Internet Protocol(IP) packet network environments. The proposed algorithm increases the bandwidth utilization with slight degradation in the primary picture quality at error free conditions, compared to the existing redundant coding method of H.264/AVC standard. Furthermore, the simulation results show that the proposed algorithm outperforms the existing redundant picture coding technique of scalable extension of H.264/AVC standard, under packet loss environments.","PeriodicalId":171993,"journal":{"name":"2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132347227","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: 1
Design of compact controller and power module for corrosion and marine growth prevention 设计紧凑型控制器和电源模块，防止腐蚀和海洋生长
2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2012-09-17 DOI: 10.1109/ICIINFS.2012.6304828
T. M. Gangothri, P. Sumitha, S. Moorthy, K. Selvajyothi, Sk Noor Mahammed
{"title":"Design of compact controller and power module for corrosion and marine growth prevention","authors":"T. M. Gangothri, P. Sumitha, S. Moorthy, K. Selvajyothi, Sk Noor Mahammed","doi":"10.1109/ICIINFS.2012.6304828","DOIUrl":"https://doi.org/10.1109/ICIINFS.2012.6304828","url":null,"abstract":"This paper presents the design of compact controller and power module for corrosion protection as well as marine growth prevention in marine structures such as ship hulls, cargos, vessels etc. The system designed provides an electrical solution to the problem of marine growth and corrosion in metallic structures in marine environment. The digital controller constantly monitors the ship hull potential using reference electrode and gives control signal to the power module so as to impress the correct amount of current on to the surface of ship-hull through the external anodes, thereby protecting the shiphull. This system provides an increased level of protection against corrosion as compared to the traditional methods. The compact power module is designed using a buck regulator IC and the controller uses PIC18F microcontroller which provides control signal to the power module based on the level of corrosion. The system is tested in simulation and experimentally verified.","PeriodicalId":171993,"journal":{"name":"2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131036961","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: 1
Proportional resonant controller based circulating power setup for thermal testing of multilevel inverter 基于比例谐振控制器的多电平逆变器热测试循环功率设置
2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2012-09-17 DOI: 10.1109/ICIINFS.2012.6304815
Ch. Rajendra Prasad, G. Narayanan
{"title":"Proportional resonant controller based circulating power setup for thermal testing of multilevel inverter","authors":"Ch. Rajendra Prasad, G. Narayanan","doi":"10.1109/ICIINFS.2012.6304815","DOIUrl":"https://doi.org/10.1109/ICIINFS.2012.6304815","url":null,"abstract":"A regenerative or circulating-power method is presented in this paper for heat run test on the legs of a three-level neutral point clamped (NPC) inverter. This test ensures that only losses are drawn from the dc supply, while rated power is circulated between the two legs, thus minimising wastage of energy. A proportional-resonant (PR) controller based current control scheme is proposed here for the circulating power test setup in NPC inverter. Simulation and experimental results are presented to validate the controller design at various operating conditions. Results of thermal test on the inverter legs are presented at two different operating conditions.","PeriodicalId":171993,"journal":{"name":"2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129464190","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: 6
Performance of optimum detector for cyclic prefixed OFDM with induced cyclostationarity for spectrum sensing in cognitive radio 认知无线电频谱感知中诱导循环平稳循环前缀OFDM最优检测器的性能
2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2012-09-17 DOI: 10.1109/ICIINFS.2012.6304804
Hemant Saggar, D. K. Mehra
{"title":"Performance of optimum detector for cyclic prefixed OFDM with induced cyclostationarity for spectrum sensing in cognitive radio","authors":"Hemant Saggar, D. K. Mehra","doi":"10.1109/ICIINFS.2012.6304804","DOIUrl":"https://doi.org/10.1109/ICIINFS.2012.6304804","url":null,"abstract":"Cognitive radio offers a solution to spectrum scarcity by intelligently detecting unutilized licensed spectrum. This requires reliable detection of incumbent primary users at sufficiently low SNR. But sensing OFDM signals is particularly challenging as any inherent cyclostationarity is destroyed due to orthogonality of sub-carriers. Induced cyclostationarity can be used to introduce a controlled correlation in the message signal and produce cyclostationary features that can aid spectrum sensing. This paper derives an optimum maximum likelihood test statistic from first principles for detection of a cyclic prefixed OFDM (CP-OFDM) signal with induced cyclostationarity. It adopts a vector matrix model for the CP-OFDM signal in the AWGN scenario and empirically evaluates the detection probability through a Neyman-Pearson test. Simulation results show that a higher probability of detection can be achieved by using the proposed optimum detector for induced cyclostationarity as compared to energy detection and simple cyclic prefix detection. Also the performance scales with number of subcarriers and induced correlation.","PeriodicalId":171993,"journal":{"name":"2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121736509","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
A novel error robust video coding concept using motion vectors and parity bits 一种基于运动矢量和奇偶校验的视频编码新概念
2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS) Pub Date : 2012-08-01 DOI: 10.1109/ICIINFS.2012.6304797
M. B. Dissanayake
{"title":"A novel error robust video coding concept using motion vectors and parity bits","authors":"M. B. Dissanayake","doi":"10.1109/ICIINFS.2012.6304797","DOIUrl":"https://doi.org/10.1109/ICIINFS.2012.6304797","url":null,"abstract":"The paper investigates the concept of developing an error robust encoding mechanism with the minimum level of redundancy. The traditional prediction based video coding architectures have high susceptibility for channel errors. Most of these techniques fail to deliver acceptable error recovery at the receiving end at high error rate transmission networks. However, the parity based Wyner-Ziv paradigm exhibits acceptable level of error recovery in highly error prone environments, at the expense of higher processing power. The proposed method attempts to integrate all of the advantages of these two techniques in order to mitigate the disadvantages associated with each and every technique while providing high error robustness to the transmitted bit stream.","PeriodicalId":171993,"journal":{"name":"2012 IEEE 7th International Conference on Industrial and Information Systems (ICIIS)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127141818","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
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