2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)最新文献_第9页

A new approach for dynamic economic dispatch using Improved Bacterial Foraging Algorithm 基于改进细菌觅食算法的动态经济调度新方法

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422205

D. Dash, M. Basu, J. Pattanaik

引用次数: 2

Distortion free secret image sharing based on X-OR operation 基于X-OR操作的无失真秘密图像共享

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422194

A. Nag, J. Singh, D. Sarkar, P. Sarkar, S. Biswas

引用次数: 3

A proposed method to study the parasitic resistance of Ka-band Silicon IMPATT diode from large-signal electric field snap-shots 提出了一种利用大信号电场快照研究ka波段硅IMPATT二极管寄生电阻的方法

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422154

A. Acharyya, J. Banerjee, S. Banerjee

引用次数: 2

An unsupervised Learning Network for face identification and subsequent localization 一种用于人脸识别和后续定位的无监督学习网络

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422282

G. Sarker

引用次数: 5

A novel design and optimization approach of RF MEMS switch for reconfigurable antenna using ANN method 一种基于神经网络的可重构天线射频MEMS开关设计与优化方法

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422168

P. Chawla, R. Khanna

{"title":"A novel design and optimization approach of RF MEMS switch for reconfigurable antenna using ANN method","authors":"P. Chawla, R. Khanna","doi":"10.1109/CODIS.2012.6422168","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422168","url":null,"abstract":"This paper gives the construction and parametric analysis of low loss RF MEMS switch at low DC frequencies up to 8GHz which support reconfigurable antenna devices. The switch used here exhibit excellent RF characteristics in terms of power and current consumption with typical pull-in voltages lies between 1.912 to 2.125V. The switch also exhibit low insertion loss in the range of (0.01 to 0.03dB at DC-3.0GHz and 0.03 to 0.07dB at 3.0-8GHz) in on condition and with reasonable isolation (9dB at DC- 3.0GHz and 9dB to 17dB at 3.0-8.0GHz) at off position. Further the return loss in up and down states are calculated as -40 to -32dB and less than -0.16dB at DC-8GHz respectively. A feed-forward back-propagation (FFBP) algorithm of neural network is also presented for the validation of changing the anchor arm length, width of upper beam and dielectric of RF MEMS switch. The algorithm assembles new data samples during training from finite element method (FEM) based electromagnetic simulation tool HFSS. Results of the ANN are compared with those of the electromagnetic solver. These physical dimensions are varied and design is optimizing for low power consumption and to achieve acceptable level of s-parameters. The developed algorithm allows the optimisation solutions of the design to be carried out by replacing repeated simulations and also provides lesser processing times whilst still retaining an excellent accuracy as compared with finite element modelling. The optimized isolation and insertion loss results are in very good agreement up to 99.5% as compare with the theoretical results.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129468441","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: 11

Study on potentiality of truncated PRN sequences for communication 截断PRN序列通信潜力的研究

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422225

P. Banerjee, U. Keshwala, M. Kaushik

引用次数: 6

Mutual coupling reduction of microstrip antenna arrays using rectangular split ring shaped defected ground structure 利用矩形裂环缺陷接地结构降低微带天线阵的互耦

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422172

B. Mukherjee, S. Parui, S. Das

引用次数: 4

Orthogonal Variable Spreading Factor (OVSF) based image transmission using Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system 基于正交可变扩频因子(OVSF)的多输入多输出正交频分复用(MIMO-OFDM)系统图像传输

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422132

J. Sheikh, S. A. Parah, U. S. Akhtar, A. M. Hafiz, G. M. Bhat

{"title":"Orthogonal Variable Spreading Factor (OVSF) based image transmission using Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system","authors":"J. Sheikh, S. A. Parah, U. S. Akhtar, A. M. Hafiz, G. M. Bhat","doi":"10.1109/CODIS.2012.6422132","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422132","url":null,"abstract":"Orthogonal Frequency Division Multiplexing (OFDM) in combination with Multiple Input Multiple Output (MIMO) is a popular method for high data rate wireless transmission. The use of multiple antennas at both sides of the link offers an additional fundamental gain-spatial multiplexing gain, which results in increased spectral efficiency. This paper is concerned with the simulation, modeling and performance evaluation of Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) with improved performance. In this scheme OVSF codes have been used for image spreading before transmission as it solves the synchronization problem and minimizes the effect of unwanted noise during transmission. Rayleigh fading channel has been used in the proposed scheme. The performance of the proposed scheme has been tested on image signal and checked by waveforms and plots by calculating bit error rate and pixel error rate. Various digital modulation techniques have been used for checking the performance of the proposed scheme.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123409865","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: 4

Development of Hall sensor propeller anemometer for measuring wind speed using embedded controller 采用嵌入式控制器测量风速的霍尔传感器螺旋桨风速计的研制

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422244

Guddeti Karthick Kumar Reddy, S. Venkatramana Reddy, T. K. Ramkumar

{"title":"Development of Hall sensor propeller anemometer for measuring wind speed using embedded controller","authors":"Guddeti Karthick Kumar Reddy, S. Venkatramana Reddy, T. K. Ramkumar","doi":"10.1109/CODIS.2012.6422244","DOIUrl":"https://doi.org/10.1109/CODIS.2012.6422244","url":null,"abstract":"An Anemometer is a device for measuring wind speed. Propeller type anemometer measures wind speed by generating an a.c signal. In the development of new anemometer, we use Hall Effect sensor to generate digital signal. The voltage levels of the digital signal depends on the input voltage applied to the Hall sensor, its input voltage may be from 2.5V - 27V. The Timer/Counter is a register in the Microcontroller, whose value keeps increasing or decreasing for rising edge or falling edge of the internal or external clock source by a constant rate without the help of CPU. The external clock to the counter is the digital signal from the Hall sensor. Thus the rate of rotations made by the propeller is counted using counter in the PIC 18F series Microcontroller. The spinning rate of the propeller is proportional to the wind speed. Therefore, we can determine the wind speed from the measurement of spinning rate of the propeller using embedded controller and the radius of propeller. The performance of our system is compared with existing system and our designed anemometer is also inexpensive.","PeriodicalId":274831,"journal":{"name":"2012 International Conference on Communications, Devices and Intelligent Systems (CODIS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127038390","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: 5

Automatic classification of A. paeoniifolius species from DNA fingerprints of Amorphophalus Genus 紫穗槐属植物DNA指纹图谱自动分类研究

2012 International Conference on Communications, Devices and Intelligent Systems (CODIS) Pub Date : 2012-12-01 DOI: 10.1109/CODIS.2012.6422269

A. Banerjee, S. Basu, O. Mekkerdchoo, G. Srzednicki, M. Nasipuri

引用次数: 1