首页 > 最新文献

2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)最新文献

英文 中文
Anodic alumina and titania MIM capacitors - an experimental comparative study 阳极氧化铝和二氧化钛MIM电容器的实验比较研究
D. Kannadassan, R. Karthik, P. Mallick, M. Baghini
This paper presents the fabrication and comparative study of barrier type Al2O3 & TiO2 Metal-Insulator-Metal (MIM) capacitor using anodic oxidation technique. With high capacitance density (> 5fF/μm2) and low leakage current density (10nA/cm2), both the capacitors show excellent performance and meet the ITRS recommendations for the year 2015. With a detailed study on frequency dependence of capacitance and conduction mechanisms, the evaluation of capacitor performance is done for the RF and Mixed signal applications. The barrier type anodic oxides are suggested as a dielectric material for high performance MIM capacitors.
本文介绍了利用阳极氧化技术制备阻挡型Al2O3 & TiO2金属-绝缘体-金属(MIM)电容器并进行了对比研究。具有高电容密度(> 5fF/μm2)和低漏电流密度(10nA/cm2),性能优异,符合2015年ITRS推荐标准。详细研究了电容和传导机制的频率依赖性,对射频和混合信号应用中的电容性能进行了评价。提出了阻隔型阳极氧化物作为高性能MIM电容器的介质材料。
{"title":"Anodic alumina and titania MIM capacitors - an experimental comparative study","authors":"D. Kannadassan, R. Karthik, P. Mallick, M. Baghini","doi":"10.1109/ICEVENT.2013.6496586","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496586","url":null,"abstract":"This paper presents the fabrication and comparative study of barrier type Al2O3 & TiO2 Metal-Insulator-Metal (MIM) capacitor using anodic oxidation technique. With high capacitance density (> 5fF/μm2) and low leakage current density (10nA/cm2), both the capacitors show excellent performance and meet the ITRS recommendations for the year 2015. With a detailed study on frequency dependence of capacitance and conduction mechanisms, the evaluation of capacitor performance is done for the RF and Mixed signal applications. The barrier type anodic oxides are suggested as a dielectric material for high performance MIM capacitors.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"73 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76723528","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
Segmentation and location of abnormality in brain MR images using distributed estimation 基于分布式估计的脑磁共振图像异常分割与定位
A. Vithyavallipriya, B. Sankaragomathi, T. Ramakrishnan
This paper presents a modern semi supervised scheme for the detection and segmentation of abnormalities present in the brain MR images. The high degree of automation can be attained by using semi supervised learning, because it does not require any pathology modeling. If the dimensionality of the data is large then the estimation of the probability density function is not possible. To overcome this every image is handled as a network of locally coherent image partitions. Median filter is used for preserving edges while removing noise. Contrast enhancement automatically adjusts the intensity values of the image to achieve a better quality. The block wise separation is carried out by calculating the parameter like principal component analysis (PCA), Eigen value, Eigen vector, maximum likelihood function. The maximum likelihood function which estimating the abnormality for each partition is formulated. The likelihood function consists of a model and a data term and is formulated as a quadratic programming problem.
本文提出了一种用于检测和分割脑磁共振图像异常的现代半监督方案。高度的自动化可以通过使用半监督学习来实现,因为它不需要任何病理建模。如果数据的维数很大,则不可能估计概率密度函数。为了克服这个问题,每个图像都作为局部连贯图像分区的网络来处理。中值滤波用于在去除噪声的同时保留边缘。对比度增强自动调整图像的强度值,以获得更好的质量。通过计算主成分分析(PCA)、特征值、特征向量、极大似然函数等参数进行分块分离。给出了估计各分区异常的最大似然函数。似然函数由一个模型和一个数据项组成,并被表述为一个二次规划问题。
{"title":"Segmentation and location of abnormality in brain MR images using distributed estimation","authors":"A. Vithyavallipriya, B. Sankaragomathi, T. Ramakrishnan","doi":"10.1109/ICEVENT.2013.6496568","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496568","url":null,"abstract":"This paper presents a modern semi supervised scheme for the detection and segmentation of abnormalities present in the brain MR images. The high degree of automation can be attained by using semi supervised learning, because it does not require any pathology modeling. If the dimensionality of the data is large then the estimation of the probability density function is not possible. To overcome this every image is handled as a network of locally coherent image partitions. Median filter is used for preserving edges while removing noise. Contrast enhancement automatically adjusts the intensity values of the image to achieve a better quality. The block wise separation is carried out by calculating the parameter like principal component analysis (PCA), Eigen value, Eigen vector, maximum likelihood function. The maximum likelihood function which estimating the abnormality for each partition is formulated. The likelihood function consists of a model and a data term and is formulated as a quadratic programming problem.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83484695","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 cram of reconfigurable patch antenna using RF MEMS 一种基于射频MEMS的可重构贴片天线
C. Priya, D. Saraswathi, S. Baskar, V. Shailesh
Over the past three decades, Micro-Electro-Mechanical Systems (MEMS) have provided advancements in different fields of electronics. MEMS technology also enabled microwave and antenna engineers to produce some existing and novel radio-frequency components resulting as a new research field, namely RF MEMS. The use of MEMS technology for RF and microwave applications promises to solve many limitations, RF MEMS can reduce manufacturing cost, size, weight, and improve performance and battery life. In terms of performance, MEMS can provide low-loss switching and tuning of microwave circuits with higher dynamic range, lour cost, and greater flexibility than the competing techniques. In this paper we proposed a reconfigurable patch Antenna structures using MEMS switches. This concept leads to reduction in space and multiple functionality from a single antenna structure.
在过去的三十年中,微机电系统(MEMS)在电子技术的各个领域都取得了进步。MEMS技术还使微波和天线工程师能够生产一些现有的和新颖的射频元件,从而形成一个新的研究领域,即射频MEMS。将MEMS技术用于射频和微波应用有望解决许多限制,射频MEMS可以降低制造成本、尺寸、重量,并提高性能和电池寿命。在性能方面,MEMS可以提供微波电路的低损耗开关和调谐,具有更高的动态范围,更低的成本,以及比竞争技术更大的灵活性。本文提出了一种基于MEMS开关的可重构贴片天线结构。这一概念减少了空间,使单一天线结构具有多种功能。
{"title":"A novel cram of reconfigurable patch antenna using RF MEMS","authors":"C. Priya, D. Saraswathi, S. Baskar, V. Shailesh","doi":"10.1109/ICEVENT.2013.6496562","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496562","url":null,"abstract":"Over the past three decades, Micro-Electro-Mechanical Systems (MEMS) have provided advancements in different fields of electronics. MEMS technology also enabled microwave and antenna engineers to produce some existing and novel radio-frequency components resulting as a new research field, namely RF MEMS. The use of MEMS technology for RF and microwave applications promises to solve many limitations, RF MEMS can reduce manufacturing cost, size, weight, and improve performance and battery life. In terms of performance, MEMS can provide low-loss switching and tuning of microwave circuits with higher dynamic range, lour cost, and greater flexibility than the competing techniques. In this paper we proposed a reconfigurable patch Antenna structures using MEMS switches. This concept leads to reduction in space and multiple functionality from a single antenna structure.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"53 2 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78443429","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: 2
An efficient SQRT architecture of Carry Select adder design by Common Boolean logic 基于通用布尔逻辑的进位选择加法器的高效SQRT结构设计
S. Manju, V. Sornagopal
Carry Select adder (CSLA) is known to be the fastest adder among the Conventional adder structures. This work uses an efficient Carry select adder by sharing the Common Boolean logic (CLB) term. After a logic simplification, we only need one OR gate and one inverter gate for carry and summation operation. Through the multiplexer, we can select the correct output according to the logic states of the carry in signal. Based on this modification Square root CSLA (SQRT CSLA) architecture have been developed and compared with the regular and Modified SQRT CSLA architecture. The Modified CSLA architecture has been developed using Binary to Excess -1 converter (BEC). This paper proposes an efficient method which replaces a BEC using common Boolean logic. The result analysis shows that the proposed architecture achieves the three folded advantages in terms of area, delay and power.
进位选择加法器(CSLA)是传统加法器结构中最快的加法器。这项工作通过共享公共布尔逻辑(CLB)项,使用了一个有效的进位选择加法器。经过逻辑简化后,我们只需要一个OR门和一个逆变门进行进位和求和运算。通过多路复用器,我们可以根据进位信号的逻辑状态选择正确的输出。在此基础上开发了平方根CSLA (SQRT CSLA)体系结构,并与常规SQRT CSLA体系结构和修改后的SQRT CSLA体系结构进行了比较。改进的CSLA架构采用二进制到超-1转换器(BEC)开发。本文提出了一种用普通布尔逻辑代替BEC的有效方法。结果分析表明,该架构在面积、时延和功耗方面实现了三方面的优势。
{"title":"An efficient SQRT architecture of Carry Select adder design by Common Boolean logic","authors":"S. Manju, V. Sornagopal","doi":"10.1109/ICEVENT.2013.6496590","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496590","url":null,"abstract":"Carry Select adder (CSLA) is known to be the fastest adder among the Conventional adder structures. This work uses an efficient Carry select adder by sharing the Common Boolean logic (CLB) term. After a logic simplification, we only need one OR gate and one inverter gate for carry and summation operation. Through the multiplexer, we can select the correct output according to the logic states of the carry in signal. Based on this modification Square root CSLA (SQRT CSLA) architecture have been developed and compared with the regular and Modified SQRT CSLA architecture. The Modified CSLA architecture has been developed using Binary to Excess -1 converter (BEC). This paper proposes an efficient method which replaces a BEC using common Boolean logic. The result analysis shows that the proposed architecture achieves the three folded advantages in terms of area, delay and power.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"59 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77406872","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: 88
A survey on energy efficient neural network based clustering models in wireless sensor networks 无线传感器网络中基于节能神经网络的聚类模型研究
C. Subha, S. Malarkan, K. Vaithinathan
The performance of wireless sensor networks strongly depends on their network lifetime. As a result, Dynamic Power Management approaches with the purpose of reduction of energy consumption in sensor node, after deployment and designing of the network, have drawn attentions of many research studies. Recently, there have been a strong interest to use the intelligent tools especially neural networks in energy efficient approach of Wireless sensor networks, due to their simple parallel distributed computation, distributed storage, data robustness, auto-classification off sensor nodes and sensor reading. Dimensionality reduction and prediction of classification of sensor data obtained simply from the outputs of the neural-networks algorithms can lead to lower communication costs and energy conservation. All these characteristics are well considered in the neural network based algorithms such as ART, ART1, FUZZY ART, IVEBF and EBCS. These algorithms and their performance in improving the lifetime of the WSN are discussed in this paper.
无线传感器网络的性能在很大程度上取决于其网络寿命。因此,在网络的部署和设计之后,以降低传感器节点能耗为目的的动态电源管理方法受到了许多研究的关注。近年来,由于神经网络具有简单的并行分布式计算、分布式存储、数据鲁棒性、传感器节点自动分类和传感器读取等优点,在无线传感器网络的节能方法中应用智能工具,尤其是神经网络,已经引起了人们的强烈兴趣。简单地从神经网络算法的输出中获得传感器数据的降维和分类预测可以降低通信成本和节约能源。基于神经网络的ART、ART1、FUZZY ART、IVEBF和EBCS等算法都很好地考虑了这些特征。本文讨论了这些算法及其在提高无线传感器网络寿命方面的性能。
{"title":"A survey on energy efficient neural network based clustering models in wireless sensor networks","authors":"C. Subha, S. Malarkan, K. Vaithinathan","doi":"10.1109/ICEVENT.2013.6496545","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496545","url":null,"abstract":"The performance of wireless sensor networks strongly depends on their network lifetime. As a result, Dynamic Power Management approaches with the purpose of reduction of energy consumption in sensor node, after deployment and designing of the network, have drawn attentions of many research studies. Recently, there have been a strong interest to use the intelligent tools especially neural networks in energy efficient approach of Wireless sensor networks, due to their simple parallel distributed computation, distributed storage, data robustness, auto-classification off sensor nodes and sensor reading. Dimensionality reduction and prediction of classification of sensor data obtained simply from the outputs of the neural-networks algorithms can lead to lower communication costs and energy conservation. All these characteristics are well considered in the neural network based algorithms such as ART, ART1, FUZZY ART, IVEBF and EBCS. These algorithms and their performance in improving the lifetime of the WSN are discussed in this paper.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"22 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77678688","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: 17
Optimized architecture for Floating Point computation Unit 浮点计算单元的优化架构
Harish Anand Ti, D. Vaithiyanathan, R. Seshasayanan
As floating point operations are complex, hence its implementation in Field Programmable Gate Array (FPGAs) consumes large amount of resources. FPGAs becomes inefficient if Floating Point Units (FPUs) are unutilized, to overcome this issue, a novel architecture is proposed in this paper for optimizing the floating point computation units in hybrid FPGAs in terms of achieving a better reduction in both area and power. The proposed architecture involves an algorithmic (logarithmic) approach for computing floating point numerical operations. It performs all the four basic arithmetic operations using simple hardware like adders, look up tables and interpolation steps. This methodology is used to evaluate a variety of FPU architecture optimizations. The model is being evaluated by comparing with the existing architectures like embedded FPUs and other FPU units in the FPGAs in terms of area, power, speed and high throughput. The simulation results of our model in cadence encounter tool shows the proposed architecture scales nearly 28 percent area and consumes 36 percent less power than existing FPUs. And also our method scales very well with an increase in required accuracy compared to the existing techniques.
由于浮点运算比较复杂,因此在fpga (Field Programmable Gate Array,现场可编程门阵列)中实现浮点运算需要消耗大量的资源。如果浮点单元(fpu)未被利用,fpga会变得效率低下,为了克服这一问题,本文提出了一种新的架构来优化混合fpga中的浮点计算单元,以实现更好的面积和功耗降低。所提出的体系结构涉及一种计算浮点数值运算的算法(对数)方法。它使用简单的硬件(如加法器、查找表和插值步骤)执行所有四种基本算术运算。该方法用于评估各种FPU架构优化。通过与现有架构(如嵌入式FPU和fpga中的其他FPU单元)在面积、功率、速度和高吞吐量方面进行比较,对该模型进行了评估。我们的模型在节奏遭遇工具中的仿真结果表明,所提出的架构比现有的fpu扩展了近28%的面积,功耗降低了36%。而且,与现有技术相比,我们的方法可以很好地提高所需的精度。
{"title":"Optimized architecture for Floating Point computation Unit","authors":"Harish Anand Ti, D. Vaithiyanathan, R. Seshasayanan","doi":"10.1109/ICEVENT.2013.6496587","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496587","url":null,"abstract":"As floating point operations are complex, hence its implementation in Field Programmable Gate Array (FPGAs) consumes large amount of resources. FPGAs becomes inefficient if Floating Point Units (FPUs) are unutilized, to overcome this issue, a novel architecture is proposed in this paper for optimizing the floating point computation units in hybrid FPGAs in terms of achieving a better reduction in both area and power. The proposed architecture involves an algorithmic (logarithmic) approach for computing floating point numerical operations. It performs all the four basic arithmetic operations using simple hardware like adders, look up tables and interpolation steps. This methodology is used to evaluate a variety of FPU architecture optimizations. The model is being evaluated by comparing with the existing architectures like embedded FPUs and other FPU units in the FPGAs in terms of area, power, speed and high throughput. The simulation results of our model in cadence encounter tool shows the proposed architecture scales nearly 28 percent area and consumes 36 percent less power than existing FPUs. And also our method scales very well with an increase in required accuracy compared to the existing techniques.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"35 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81288233","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: 7
Combined Seizure Index with Adaptive Multi-Class SVM for epileptic EEG classification 结合发作指数与自适应多类支持向量机的癫痫脑电分类
A. S. Muthanantha Murugavel, S. Ramakrishnan, U. Maheswari, B. S. Sabetha
In this paper, we have proposed a novel wavelet based CSI feature and a novel Adaptive Multi-Class Support Vector Machine (SVM) for the multi-class electroencephalogram (EEG) signals classification with the emphasis on epileptic seizure detection. The purpose was to determine an optimum classification scheme for this problem and also to infer clues about the extracted features. Wavelets have played an important role in biomedical signal processing for its ability to capture localized spatial-frequency information of EEG signal. CSI is used to develop a normalized index which state the maximum difference between the seizure and non-seizure states between the frequency range of 1-30Hz. The adaptive MSVM works well for high dimensional, multi-class data streams. Decision making was performed in two stages: feature extraction by computing the Combined Seizure Index and classification using the classifiers trained on the extracted features. We have compared the adaptive MSVM with the benchmark EEG dataset. Our experimental results show that the adaptive MSVM with wavelet based features which will represent the EEG signals and the classification methods trained on these features achieved high classification accuracies with better false rate and sensitivity.
本文提出了一种新的基于小波的CSI特征和一种新的自适应多类支持向量机(SVM),用于多类脑电图信号的分类,重点是癫痫发作的检测。目的是为这个问题确定一个最佳的分类方案,并推断提取的特征的线索。小波以其捕获脑电信号局部空间频率信息的能力在生物医学信号处理中发挥着重要作用。CSI用于开发一种标准化指数,该指数表示1-30Hz频率范围内癫痫发作和非癫痫发作状态之间的最大差异。自适应MSVM适用于高维、多类数据流。决策分两个阶段进行:通过计算组合癫痫指数提取特征,使用提取的特征训练的分类器进行分类。我们将自适应MSVM与基准EEG数据集进行了比较。实验结果表明,基于小波特征表征脑电信号的自适应MSVM和基于这些特征训练的分类方法具有较高的分类准确率和较好的错误率和灵敏度。
{"title":"Combined Seizure Index with Adaptive Multi-Class SVM for epileptic EEG classification","authors":"A. S. Muthanantha Murugavel, S. Ramakrishnan, U. Maheswari, B. S. Sabetha","doi":"10.1109/ICEVENT.2013.6496565","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496565","url":null,"abstract":"In this paper, we have proposed a novel wavelet based CSI feature and a novel Adaptive Multi-Class Support Vector Machine (SVM) for the multi-class electroencephalogram (EEG) signals classification with the emphasis on epileptic seizure detection. The purpose was to determine an optimum classification scheme for this problem and also to infer clues about the extracted features. Wavelets have played an important role in biomedical signal processing for its ability to capture localized spatial-frequency information of EEG signal. CSI is used to develop a normalized index which state the maximum difference between the seizure and non-seizure states between the frequency range of 1-30Hz. The adaptive MSVM works well for high dimensional, multi-class data streams. Decision making was performed in two stages: feature extraction by computing the Combined Seizure Index and classification using the classifiers trained on the extracted features. We have compared the adaptive MSVM with the benchmark EEG dataset. Our experimental results show that the adaptive MSVM with wavelet based features which will represent the EEG signals and the classification methods trained on these features achieved high classification accuracies with better false rate and sensitivity.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"3 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82326154","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: 12
Estimation of tropospheric time delay for Indian LAAS 印度LAAS对流层时延估计
Q. Sultana, A. D. Sarma, M. Q. Javeed
In LAAS with airport pseudolites (APLs), error introduced in the signals due to tropospheric time delay proves to be the largest in pseudolite error budget. In this paper, tropospheric delay (TD) is estimated using Hopfield model and RTCA model for a typical LAAS scenario. Hopfield model is used to estimate delay in GPS signal and RTCA model is used to estimate delay in pseudolite signal. As the tropospheric delay is a function of meteorological parameters, these parameter values are collected from India Meteorological Department (IMD) for Hyderabad city, India, for a typical day. These data values are interpolated with respect to altitude for the estimation of TD at various heights. For an altitude of 1.94 m TD in APL signal is estimated as 7.2 m (approx.) and TD in GPS signal is estimated as 2.75 m. When the aircraft just touches the runway touchdown point, TD in APL signal reduces to insignificant value and TD in GPS signal increases to 3.25 m.
在机场伪卫星LAAS中,由于对流层时延引起的信号误差在伪卫星误差预算中是最大的。本文利用Hopfield模型和RTCA模型估算了典型LAAS情景下的对流层延迟(TD)。采用Hopfield模型估计GPS信号的时延,采用RTCA模型估计伪卫星信号的时延。由于对流层延迟是气象参数的函数,这些参数值是由印度气象局(IMD)为印度海得拉巴市收集的典型一天的参数值。将这些数据值与海拔进行插值,以估计不同高度的TD。在海拔1.94 m时,APL信号的TD估计为7.2 m(约),GPS信号的TD估计为2.75 m。当飞机刚到达跑道着陆点时,APL信号中的TD减小到不显著值,而GPS信号中的TD增大到3.25 m。
{"title":"Estimation of tropospheric time delay for Indian LAAS","authors":"Q. Sultana, A. D. Sarma, M. Q. Javeed","doi":"10.1109/ICEVENT.2013.6496529","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496529","url":null,"abstract":"In LAAS with airport pseudolites (APLs), error introduced in the signals due to tropospheric time delay proves to be the largest in pseudolite error budget. In this paper, tropospheric delay (TD) is estimated using Hopfield model and RTCA model for a typical LAAS scenario. Hopfield model is used to estimate delay in GPS signal and RTCA model is used to estimate delay in pseudolite signal. As the tropospheric delay is a function of meteorological parameters, these parameter values are collected from India Meteorological Department (IMD) for Hyderabad city, India, for a typical day. These data values are interpolated with respect to altitude for the estimation of TD at various heights. For an altitude of 1.94 m TD in APL signal is estimated as 7.2 m (approx.) and TD in GPS signal is estimated as 2.75 m. When the aircraft just touches the runway touchdown point, TD in APL signal reduces to insignificant value and TD in GPS signal increases to 3.25 m.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"68 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86795472","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
Power efficient Vlsi architecture using Sps technique 采用Sps技术的高效功耗Vlsi架构
S. Ramakrishnan, G. Hemalatha, P. Mohan, R. Seshadri
Using spurious power suppression technique (SPST) in VLSI will reduce the power consumption of the system significantly. Here we are going to implement this design in Infinite Impulse Response (IIR) and Finite Impulse Response (FIR) filter architecture. When we are using this technique in this multipliers the no of partial products generated will be reduced to half which reduces the computation. Then obviously the power consumption is also reduced by this method using the various hardware device.
在超大规模集成电路中采用杂散功率抑制技术(SPST)可以显著降低系统功耗。这里我们将在无限脉冲响应(IIR)和有限脉冲响应(FIR)滤波器架构中实现此设计。当我们在这个乘法器中使用这种技术时,生成的部分乘积的数量将减少一半,从而减少了计算量。显然,通过使用各种硬件设备,这种方法也降低了功耗。
{"title":"Power efficient Vlsi architecture using Sps technique","authors":"S. Ramakrishnan, G. Hemalatha, P. Mohan, R. Seshadri","doi":"10.1109/ICEVENT.2013.6496584","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496584","url":null,"abstract":"Using spurious power suppression technique (SPST) in VLSI will reduce the power consumption of the system significantly. Here we are going to implement this design in Infinite Impulse Response (IIR) and Finite Impulse Response (FIR) filter architecture. When we are using this technique in this multipliers the no of partial products generated will be reduced to half which reduces the computation. Then obviously the power consumption is also reduced by this method using the various hardware device.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"20 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77988312","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
Environment monitoring and device control using ARM based embedded controlled sensor network 基于ARM的嵌入式可控传感器网络环境监测与设备控制
V. Singh, I. Singh, S. K. Sud
Embedded controlled sensor network is the technology used to implement environmental solutions effectively. Many researchers have been making attempts to develop the embedded controlled sensor network. The existing systems are bulky, very costly and difficult to maintain. The proposed system is cost effective and controlled by user friendly embedded systems. In the proposed system ARM based microcontroller and wireless sensors are used to control the various devices and to monitor the information regarding the environment using Zigbee and GSM technologies.
嵌入式控制传感器网络是用于有效实施环境解决方案的技术。许多研究者一直在尝试开发嵌入式可控传感器网络。现有的系统体积庞大、成本高昂且难以维护。所提出的系统具有成本效益,并由用户友好的嵌入式系统控制。在该系统中,采用基于ARM的微控制器和无线传感器来控制各种设备,并使用Zigbee和GSM技术来监测有关环境的信息。
{"title":"Environment monitoring and device control using ARM based embedded controlled sensor network","authors":"V. Singh, I. Singh, S. K. Sud","doi":"10.1109/ICEVENT.2013.6496548","DOIUrl":"https://doi.org/10.1109/ICEVENT.2013.6496548","url":null,"abstract":"Embedded controlled sensor network is the technology used to implement environmental solutions effectively. Many researchers have been making attempts to develop the embedded controlled sensor network. The existing systems are bulky, very costly and difficult to maintain. The proposed system is cost effective and controlled by user friendly embedded systems. In the proposed system ARM based microcontroller and wireless sensors are used to control the various devices and to monitor the information regarding the environment using Zigbee and GSM technologies.","PeriodicalId":6426,"journal":{"name":"2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)","volume":"49 43 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2013-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77718763","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: 9
期刊
2013 International Conference on Emerging Trends in VLSI, Embedded System, Nano Electronics and Telecommunication System (ICEVENT)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1