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2017 International Conference on Recent Innovations in Signal processing and Embedded Systems (RISE)最新文献

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An EMD based approach for discrimination of apnea and normal EEG signals 一种基于EMD的呼吸暂停和正常脑电图信号识别方法
S. Yadav, V. Bajaj, Anil Kumar
Sleep apnea is a type of sleep syndrome and is caused due to breaks or pause during sleep. A new technique is used in this paper for the discrimination between apnea and normal sleep electroencephalogram (EEG) signals. Here, the empirical mode decomposition (EMD) method is used for the discrimination purpose of apnea and normal sleep EEG signals. In EMD method, EEG signal (which may be non-linear or non-stationary in nature) has been decomposed into oscillatory functions known as intrinsic mode functions (IMFs). After decomposition of EEG signals, two important features termed as energy and entropy has been extracted. These features help in discrimination process of EEG signals.
睡眠呼吸暂停是一种睡眠综合症,是由于睡眠中断或暂停引起的。本文提出了一种新的识别呼吸暂停和正常睡眠脑电图信号的方法。本文采用经验模态分解(EMD)方法对呼吸暂停和正常睡眠脑电图信号进行判别。在EMD方法中,脑电信号(本质上可能是非线性或非平稳的)被分解成振荡函数,称为本征模态函数(IMFs)。对脑电信号进行分解后,提取出能量和熵两个重要特征。这些特征有助于脑电信号的识别处理。
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引用次数: 1
A wide tuning range voltage controlled ring oscillator using injection locking 采用注入锁定的宽调谐范围电压控制环形振荡器
N. Dhakad, R. Gurjar
In this paper design of Voltage Controlled Oscillator (VCO) using injection locking technique is proposed. The circuit simulation is done by Cadence Virtuoso Analog Design Environment using SCL 180nm CMOS process. Simulation results shows that the VCO achieves tuning range of 150% over the range of 508 MHz to 3.56 GHz with the phase noise of −126 dBc/Hz at 1 MHz offset frequency. The power dissipation of the circuit is 110.4 μW from 1.8 supply voltage.
本文提出了一种采用注入锁紧技术的压控振荡器(VCO)的设计方法。采用SCL 180nm CMOS工艺,利用Cadence Virtuoso模拟设计环境对电路进行仿真。仿真结果表明,该VCO在508 MHz ~ 3.56 GHz范围内实现了150%的调谐范围,在1 MHz偏移频率下相位噪声为- 126 dBc/Hz。电源电压为1.8时,电路功耗为110.4 μW。
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引用次数: 0
Software defined radio based receivers using RTL — SDR: A review 软件定义无线电接收机使用RTL - SDR:综述
Madhuram Mishra, A. Potnis, Prashant Dwivedy, S. Meena
Software defined Radio is one of the most important and latest technique for modern wireless communication. SDR is a radio which can be tuned to any frequency band which the hardware supports, implement different modulation and demodulation schemes and different signal types and standard(s) in the same device by using reconfigurable hard-are and using powerful software. This paper provides a detailed analysis of SDR based radio receivers that can be implemented by using SDR systems. The main types of devices that can be implemented using SDR are only Radio Receiver, only Radio Transmitter and a Transceiver which provide function for both transmitter and receiver. Implementation of SDR devices using MATLAB, Simulink, GNU Radio and Single Board Computer is also discussed in this paper. The availability of low cost SDR hardware with good functional capability has reduced the overall cost of SDR system. This paper also provides a comparison between different types of radio systems developed using SDR and their performance analysis is also provided.
软件无线电是现代无线通信中最重要、最新的技术之一。SDR是一种可以调谐到硬件支持的任何频段的无线电,通过使用可重构的硬件和功能强大的软件,在同一设备中实现不同的调制和解调方案以及不同的信号类型和标准。本文对基于SDR的无线电接收机进行了详细的分析,这些接收机可以用SDR系统来实现。可以使用SDR实现的主要设备类型只有无线电接收机、无线电发射机和收发器,它们同时提供发射器和接收器的功能。本文还讨论了利用MATLAB、Simulink、GNU Radio和单板计算机实现SDR器件的方法。低成本、良好功能的SDR硬件的出现降低了SDR系统的总体成本。本文还对利用SDR开发的不同类型的无线电系统进行了比较,并对其性能进行了分析。
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引用次数: 19
Online career counseling system using adaptive e-learning 采用自适应电子学习的在线职业咨询系统
Kazi Fakir Mohammed, Sushopti Gawade, V. Nimkar
E-learning has been for more than around for ten years. It is probably the learning object that is assumed to be the learning content today. Commencing from computer-based delivery systems world, learning objects were idolized as Lego blocks or atoms. E-learning can be assumed as a part of lecture room or not that totally depends upon its implementation. It can be designated to as self-paced, non-synchronous training or can be drove by an instructor or can be renamed as concurrent learning. Distance learning is best matched to E-learning and also adjustable training, but can also be utilized with confronting teaching, where the terminology commonly used is blended learning. This type of blended learning in today's world is kind of static learning where the student are presented with static content irrespective of their capability to grasp the knowledge they are being provided. Therefore, there is need for a type of system that can adapt to the student's capability and would then provide knowledge by adapting to student's pace. To realize this sort of system, we would be building a system of career counseling system wherein the student would be presented a set of questions that would be based on their previous answers thus adapting to the student capability. Our system would take into consideration various factors before presenting questions to the candidate. Also, keeping in track the students previous history which also is of utmost importance, the final result that would be displayed to the student would take into consideration the historical factors of the students as well.
电子学习已经有十多年的历史了。它可能是学习对象,被假定为今天的学习内容。从基于计算机的传输系统世界开始,学习对象就像乐高积木或原子一样被偶像化。电子学习是否可以作为课堂教学的一部分,完全取决于它的实施。它可以被指定为自定节奏、非同步的训练,也可以由教练指导,或者可以重命名为并行学习。远程学习最适合电子学习和可调整培训,但也可以用于面对面教学,其中通常使用的术语是混合学习。在当今世界,这种混合式学习是一种静态学习,学生被提供静态的内容,而不考虑他们掌握知识的能力。因此,需要一种能够适应学生能力的系统,然后通过适应学生的步伐来提供知识。为了实现这种系统,我们将建立一个职业咨询系统,在这个系统中,学生将根据他们之前的答案提出一系列问题,从而适应学生的能力。我们的系统在向候选人提问之前会考虑各种因素。此外,跟踪学生以前的历史也是最重要的,最终的结果将显示给学生也会考虑到学生的历史因素。
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引用次数: 1
Broad band low noise amplifier for wireless application using double order gain flatting technique 采用双阶增益平坦化技术的无线宽带低噪声放大器
M. Abdulla, Amjad Quazi, Zeenal Aafreen Khan
In this paper designed broad band low noise amplifier for wireless application, the proposed amplifier is designed using the input, output matching network, double order gain flatting and bandwidth enhancement techniques. The proposed amplifier designed and simulated in the LT-Spice simulator. The simulation result is validated in terms of S-Parameters, current gain, power dissipation and noise analysis. The more research in the field of broad band low noise amplifier is highly demanded therefore many researchers have been doing research since the past decades. This proposed amplifier could be used in wireless application like Wi-Max, WLAN, GSM and Bluetooth.
本文设计了用于无线应用的宽带低噪声放大器,该放大器采用输入、输出匹配网络、双阶增益平坦化和带宽增强技术进行设计。该放大器在LT-Spice模拟器上进行了设计和仿真。从s参数、电流增益、功耗和噪声分析等方面验证了仿真结果。由于对宽带低噪声放大器的研究日益迫切,几十年来许多研究人员一直在进行研究。该放大器可用于Wi-Max、WLAN、GSM和蓝牙等无线应用。
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引用次数: 1
Pixel based satellite image fusion using dual-tree complex and Curvelet transform 基于双树复合体和Curvelet变换的像素级卫星图像融合
P. Chaudhari, S. P. Mahajan
Multisensory Image fusion is the operation of combining complementary information from two or more source images into a single fused image. The fused image will supply supplementary information from source images and reduce the redundancy. Satellite image fusion is the process of fusion between high spectral but low resolution multispectral and low-spectral but high-resolution panchromatic images. Traditional fusion methods can't give the image with high spectral and spatial resolution. Fusion using DWT achieve an image with high spectral information but failed to provide spatial information and it has less sharpness in fused image. But using Curvelet transform we get a fused image with high spatial and spectral information with more sharpness.
多感官图像融合是将来自两个或多个源图像的互补信息组合成单个融合图像的操作。融合后的图像可以提供源图像的补充信息,减少冗余。卫星图像融合是高光谱低分辨率多光谱图像与低光谱高分辨率全色图像融合的过程。传统的融合方法无法获得高光谱分辨率和高空间分辨率的图像。利用小波变换进行融合可以获得高光谱信息的图像,但不能提供空间信息,融合后的图像清晰度较差。而利用Curvelet变换得到的融合图像具有较高的空间和光谱信息,清晰度更高。
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引用次数: 1
Survey on website evaluation tools 关于网站评价工具的调查
S. Khandare, Sushopti Gawade, V. Turkar
Website usability means how effortlessly the end user can use the website i.e. making the interface of the website more user friendly, proper presentation of information in a clear and concise way, the placement of important items in appropriate areas as well as there should be lack of ambiguity. Also the contents of the website should work on various devices and browsers. Another important concern for website's usability is ensuring that the website is appropriate for all ages and genders. Some major aspects of Usability are — consistency, simplicity, clarity, familiarity, accessibility, credibility and relevancy. A website's ease of use, or its usability, is an integral part of its success, especially with websites becoming more and more interactive, complex and packed with features.
网站可用性指的是最终用户如何轻松地使用网站,即使网站的界面更加用户友好,以清晰简洁的方式适当地呈现信息,将重要项目放置在适当的区域,以及应该避免歧义。此外,网站的内容应该在各种设备和浏览器上工作。网站可用性的另一个重要问题是确保网站适合所有年龄和性别。可用性的一些主要方面是——一致性、简单性、清晰性、熟悉性、可访问性、可信度和相关性。一个网站的易用性,或者说易用性,是其成功不可或缺的一部分,尤其是在网站变得越来越互动、复杂和功能丰富的情况下。
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引用次数: 6
A low power, low phase noise wide tuning LC VCO with varactor bank 具有变容管组的低功率、低相位噪声宽调谐LC压控振荡器
Shephali Singh, R. Gurjar
Thispaper presentedthe LC VCO design with varactor bank based on the selection of passive elements. A negative CMOS cross coupled pair is added to reduce losses and improves quality factor. This configuration is selected due to ease of oscillation and a relatively straight forward design approach. Tuning range is achieved from 9 band MOS varactor bank having low VCO gain. The PMOS varactors operating in inversion and depletion region which allow large tuning and less parasitic resistance. LC VCO has been implemented using SCL 0.18 pm CMOS technology. The proposed design achieves a wide tuning frequency from 4.3 GHz–6.8 GHz and a phase noise of −127.5dBc/Hz @ 1 MHz. The tuning range of proposed circuit is 45% andthe power consumption is 216 uW using 1.5 V supply voltage.
本文在无源元件选择的基础上,提出了带变容组的LC压控振荡器的设计。增加负CMOS交叉耦合对,降低损耗,提高品质因数。选择这种配置是由于易于振荡和相对直接的设计方法。调谐范围由具有低压控振荡器增益的9波段MOS变容管组实现。PMOS变容管工作在反转和耗尽区,允许大的调谐和更小的寄生电阻。LC压控振荡器采用SCL 0.18 pm CMOS技术实现。提出的设计实现了4.3 GHz - 6.8 GHz的宽调谐频率和- 127.5dBc/Hz @ 1 MHz的相位噪声。该电路的调谐范围为45%,功耗为216 uW,电源电压为1.5 V。
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引用次数: 2
A review on various image fusion algorithms 综述了各种图像融合算法
Nivedita Jha, A. Saxena, A. Shrivastava, M. Manoria
The process of Image fusion can be defined as the process of combining multiple input images into a single composite image. Our aim is to create a single output image from the collection of input images which contains a better explanation of the view than the one provided by any of the individual input images. The fundamental problem of image fusion is one of determining the best procedure for combining the several input images. The review adopted in this paper is that combining various images with prior information is best handled within a statistical outline. The manuscript presented here is a representative collection of the latest advances in the field of Image Fusion (IF) which is offered and a range of methods that are causative to its growth are presented. It describes the spatial and transforms domain fusion techniques such as, Principal Component Analysis (PCA), Independent Component Analysis (ICA), Discrete Cosine Transform (DCT) and wavelet domain techniques and others.
图像融合的过程可以定义为将多个输入图像组合成单个合成图像的过程。我们的目标是从输入图像的集合中创建一个单一的输出图像,它比任何单个输入图像提供的视图都能更好地解释视图。图像融合的基本问题是确定多幅输入图像的最佳组合方法。本文采用的评论是,将各种图像与先验信息结合在一起,最好在一个统计大纲内处理。这里提出的手稿是一个代表性的集合,在图像融合(IF)领域的最新进展,这是提供和一系列的方法,导致其增长被提出。介绍了空间和变换域的融合技术,如主成分分析(PCA)、独立成分分析(ICA)、离散余弦变换(DCT)和小波域技术等。
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引用次数: 6
Analysis of privacy preserving echanisms for outsourced data mining 外包数据挖掘的隐私保护机制分析
K. Agrawal, V. Tewari
The emergence of data mining techniques have revolutionized the information-centric world. New tools and techniques have been announced in a quick session. In recent years, the amount of digital data collected from various resources has increased tremendously. Multiple organizations and individuals having fewer computation resources and lack of expertise can outsource their data mining jobs to the third party service provider/server. The Data-Mining-as-a-Service (DMaaS) paradigm is steadily gaining impetus. Privacy and security issues are the primary concern of DMaaS, as the third party is assumed to be semi-trusted. In this scenario, the data owner may not want to share its sensitive data either with the server or other data owners. In this paper, we propose a cloud-aided privacy preserving data mining solution for outsourced data in the multi-party environment with less leakage of raw data. Our solution is designed for applications, where high-level privacy-preservation is required by the data owners.
数据挖掘技术的出现彻底改变了以信息为中心的世界。新的工具和技术已经在一个简短的会议中宣布。近年来,从各种资源收集的数字数据量急剧增加。计算资源较少且缺乏专业知识的多个组织和个人可以将其数据挖掘工作外包给第三方服务提供商/服务器。数据挖掘即服务(Data-Mining-as-a-Service, DMaaS)范式正在稳步发展。隐私和安全问题是DMaaS的主要关注点,因为第三方被认为是半可信的。在这种情况下,数据所有者可能不希望与服务器或其他数据所有者共享其敏感数据。本文针对多方环境下的外包数据,提出了一种原始数据较少泄露的云辅助隐私保护数据挖掘解决方案。我们的解决方案是为应用程序设计的,在这些应用程序中,数据所有者需要高级别的隐私保护。
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引用次数: 3
期刊
2017 International Conference on Recent Innovations in Signal processing and Embedded Systems (RISE)
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