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2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT)最新文献

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Design of A Ring Oscillator Based PUF with Enhanced Challenge Response pair and Improved Reliability 基于增强挑战响应对和提高可靠性的环形振荡器PUF设计
Suchismita Batabyal, A. A. Bazil Rai
Hardware security is of utmost importance nowadays, with the increased number of threats like modelling attacks, reverse engineering and extracting secret information from the IC's. A physical unclonable function (PUF) is a promising solution to many security related problems and can be used to produce devices or IC's that are unique and resistant to cloning attempts. A PUF is like a fingerprint for a particular physical object, it is based on many manufacturing mismatches that occur during IC fabrication or the propagation delays that are present in the wires and interconnects. Various kinds of PUF designs are possible like ring oscillator, SRAM and arbiter PUF's etc. A Ring oscillator based PUF is designed based on the delays present in the wires that leads to different frequency of oscillation and can form the basis for key generation. They are also easily implemented in field programmable gate array (FPGA).In this paper we propose a ring oscillator based design with enhanced challenge response pair (CRP) with improved reliability. Our design has more number of challenge response pair since all the possible frequency comparisons of the Ro are done. Also it provides better reliability because our approach relies on relative values and not absolute value, it incorporates the difference between the highest frequency in the present comparison and the maximum of all the measured frequencies, under varying environmental conditions even if the absolute value changes, the relative value will never change.
如今,随着建模攻击、逆向工程和从IC中提取秘密信息等威胁的增加,硬件安全至关重要。物理不可克隆功能(PUF)是解决许多安全相关问题的一种很有前途的解决方案,可用于生产独特且可抵抗克隆尝试的设备或IC。PUF就像一个特定物理对象的指纹,它是基于在IC制造过程中发生的许多制造不匹配或存在于电线和互连中的传播延迟。各种PUF设计是可能的,如环形振荡器,SRAM和仲裁PUF等。设计了一种基于PUF的环形振荡器,该振荡器是基于导线中存在的导致不同频率振荡的延迟,可以构成密钥生成的基础。它们也很容易在现场可编程门阵列(FPGA)中实现。本文提出了一种基于环形振荡器的增强挑战响应对(CRP)设计,提高了可靠性。我们的设计有更多的挑战响应对,因为所有可能的频率比较都完成了。此外,它提供了更好的可靠性,因为我们的方法依赖于相对值而不是绝对值,它包含了当前比较中最高频率与所有测量频率最大值之间的差异,在不同的环境条件下,即使绝对值改变,相对值也不会改变。
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引用次数: 28
Issues with High Volatage Measurement and its Mitigation 高压测量的问题及其缓解
S. Patil, M. Rane, S. Bindu
A measuring system which can measure high voltage impulses is been implemented using resistive and capacitive divider network. The simulation of this resistive divider is been done in MATLAB Software with the ten stage Marx circuit and results are calculated which are then matched with both the capacitive divider network and the resistive divider network. The voltage values of resistive divider and capacitive divider are calculated and compared. It is seen that the resistive divider network has excellent response characteristics as compared to capacitive divider network. The experimental result shows that it can measure the voltage quantities up to 5000V, which has pulse width of $5mu$ -sec sheet.
采用阻容分压器网络实现了高压脉冲的测量系统。利用MATLAB软件对该电阻分频器进行了十级马克思电路的仿真,并对仿真结果进行了计算,并与电容分频网络和电阻分频网络进行了匹配。对电阻分压器和电容分压器的电压值进行了计算和比较。结果表明,与电容式分频网络相比,电阻式分频网络具有优良的响应特性。实验结果表明,它可以测量高达5000V的电压量,脉冲宽度为5 μ s片。
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引用次数: 1
Area and Timing Analysis of Advanced Adders under changing Technologies 技术变化下先进加法器的面积与时序分析
Apoorva Raghunandan, RAVISH ARADHYA H V
A good VLSI Design is one with low area occupancy and high speed of operation. As per Moore's law the number of transistors on a chip, increase and so does the overall chip Area. Optimizing the parameters of Area and Delay is of high importance in VLSI Design. Performance analysis and comparison of Area occupancy and Delay has been performed for 4 adders - the Ripple Carry Adder (Adder 1), the Kogge Stone Adder (Adder 2), the Carry Skip Adder (Adder 3) and the Brent Kung Adder (Adder 4), each being a 16-bit adder. The Adders were designed using Verilog code and then simulated and synthesized using RTL Encounter tool. Netlists were generated using the nclaunch tool for the three technologies. The Area and Delay results have been obtained for three technologies namely 180nm, 90nm and 45nm. At 180m, the Ripple Carry Adder occupies the least area of 1118nm2and Kogge Stone Adder has the smallest Delay of 3.495ns. At 90nm, the Ripple Carry Adder occupies the smallest Area of 315nm2 and the Kogge Stone Adder has the smallest delay of 2.957ns. The Ripple Carry Adder has a delay of 3.875ns in [3]. The reduction of delay in the paper is 10.99%.. The Carry Skip Adder has a delay of 8.106ns in [3] and a reduction of 64.16% is obtained in this paper. The Kogge Stone Adder has a delay of 6.7ns in [3]. A delay reduction of 63.65% is obtained in this paper. In [3], The Brent Kung Adder has a delay of 8.094ns. A reduction of 71.14% is obtained Amongst the four adders it has been found that the Brent Kung occupies the least Area of 123nm2 at 45nm and also has the smallest delay of 2.336 ns.
一个好的超大规模集成电路设计是一个占地面积小,运行速度快的设计。根据摩尔定律,芯片上晶体管的数量会增加,芯片的总面积也会增加。面积和延迟参数的优化在超大规模集成电路设计中具有重要意义。对4个加法器进行了面积占用和延迟的性能分析和比较——Ripple Carry加法器(Adder 1)、Kogge Stone加法器(Adder 2)、Carry Skip加法器(Adder 3)和Brent Kung加法器(Adder 4),每个加法器都是16位加法器。使用Verilog代码设计了加法器,并使用RTL Encounter工具进行了仿真和合成。网络列表是使用这三种技术的启动工具生成的。得到了180nm、90nm和45nm三种工艺下的面积和延迟结果。在180m处,纹波进位加法器的面积最小,为1118nm2, Kogge Stone加法器的延迟最小,为3.495ns。在90nm处,纹波进位加法器的面积最小,为315nm2, Kogge Stone加法器的延迟最小,为2.957ns。纹波进位加法器在[3]中有3.875ns的延迟。本文的延迟减少率为10.99%。进位跳频加法器在[3]中的延迟为8.106ns,本文的延迟降低了64.16%。Kogge石加法器在[3]中有6.7ns的延迟。本文得到了延迟减少63.65%的结果。在[3]中,Brent Kung Adder的延迟为8.094ns。在四种加法器中,Brent Kung在45nm处占用的面积最小,为123nm2,延迟最小,为2.336 ns。
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引用次数: 1
Harmonic Source Identification Using Modified Power Direction Method 基于修正功率方向法的谐波源识别
Pragya Joshi, S. K. Jain
In this paper harmonic source identification has been done using active power direction method with the study of distortion caused by loads at the system nodes. The active power direction method is being continuously used until present date with required modifications and integration with other techniques in order to improve its application for the purpose of harmonic source detection. The effect of disturbing loads at the nodes renders significant information regarding the type of load connected to it. A comparative study of distorting and non-distorting portion of load parameters along with the power direction analysis is used as an effective tool to identify harmonic sources present in the system, better performance can be witnessed in this work on various test cases where power direction method fails. The effectiveness of the proposed technique has been tested on a modified IEEE 5 bus system and IEEE 9 bus system.
本文采用有源功率方向法进行谐波源识别,并研究了系统节点上负荷引起的畸变。有源功率方向法在谐波源检测中不断得到改进,并与其他技术相结合,以提高有源功率方向法的适用性。节点上干扰负载的影响提供了有关与其相连的负载类型的重要信息。将负载参数的畸变部分与非畸变部分进行对比研究,并结合功率方向分析作为识别系统中存在谐波源的有效工具,在功率方向法失效的各种测试用例中,本工作取得了较好的效果。在改进的ieee5总线系统和ieee9总线系统上测试了该技术的有效性。
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引用次数: 2
Design and Integration of Lane Departure Warning, Adaptive Headlight and Wiper system for Automobile Safety 车道偏离预警、自适应前灯和雨刷系统的设计与集成
G. Vijay, M. N. Ramanarayan, A. Chavan
The number of road accidents is increasing every year due to increases in vehicle and driver negligence, and it leads to a serious issue in front of modern society. Unintended lane departure and rear end collisions are some of the main reason behind road accidents in the freeway. However, it is now possible to prevent this problem to some extent, by using Advance driver assistant system (ADAS). This paper presents a Design and integration of lane departure warning, adaptive headlight and wiper system which works on different road and illumination conditions. The system uses a raspberry pi for video processing and arduino Mega is used as processing unit for AHAWS. The algorithm of LDWS takes video input frame by frame, filters the frame detects edges using canny edge detection, the lane detection decision is done by Hough transform using OpenCV python software. Based on the position of the car inside the detected lanes the warning is raised. The AHAWS algorithm takes three inputs road curvature which is given by LDWS in case of integrated system, surrounding light intensity and rain intensity based on the input the headlight will turn along with curve, the headlight intensity is adjusted according to surrounding light and wiper frequency is set according to rain intensity. The experimental results States that the AHWAS responds quickly to change in input, the average lane detection rate and the departure warning rate are 99.8% and 92.1%, respectively. With a $720times 1280$ resolution, the average processing speed is 22.2 fp/s.
由于车辆的增加和驾驶员的疏忽,道路交通事故的数量每年都在增加,这是摆在现代社会面前的一个严重问题。意外偏离车道和追尾碰撞是高速公路交通事故的主要原因。但是,现在可以通过使用高级驾驶辅助系统(ADAS)在一定程度上防止这个问题。本文提出了一种能够在不同道路和光照条件下工作的车道偏离预警、自适应前灯和雨刷系统的设计与集成。该系统使用树莓派进行视频处理,并使用arduino Mega作为AHAWS的处理单元。LDWS算法逐帧接收视频输入,使用canny边缘检测对帧进行滤波,使用OpenCV python软件进行Hough变换进行车道检测决策。根据车辆在检测到的车道内的位置提出警告。在集成系统中,AHAWS算法以LDWS给出的道路曲率为三个输入,根据输入的周围光强和雨强,前照灯将随曲线转动,根据周围光强调节前照灯强度,根据雨强设置雨刷频率。实验结果表明,AHWAS对输入变化的响应速度较快,平均车道检测率和偏离预警率分别达到99.8%和92.1%。在720 × 1280的分辨率下,平均处理速度为22.2 fp/s。
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引用次数: 3
A Progressive Sampling based Approach to Reduce Sampling Time 一种减少采样时间的渐进式采样方法
Nandita Bangera, K. N.
Analytics plays vital role in Data Science. It involves finding trends and patterns from the huge repository of data. Scanning huge amount of data consumes lot of time, which can be reduced by sampling. In this paper we have demonstrated effectiveness of Progressive sampling wherein the sample size is gradually increased till it reaches a desired accuracy. By applying an algorithm based on Rademacher average to mine frequent datasets using Progressive sampling, we have shown that the runtime and the sampling time is considerably reduced as compared with static sampling.
分析在数据科学中起着至关重要的作用。它涉及到从庞大的数据仓库中发现趋势和模式。扫描大量的数据会消耗大量的时间,这可以通过采样来减少。在本文中,我们已经证明了渐进式抽样的有效性,其中样本量逐渐增加,直到达到所需的精度。通过应用基于Rademacher平均的算法来使用渐进式采样挖掘频繁数据集,我们已经证明,与静态采样相比,运行时间和采样时间大大减少。
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引用次数: 3
Compression of Bayer Colour Filter Array Images 拜耳彩色滤波阵列图像的压缩
Shridhar Patil, P. Deepika
Bayer Colour Filter Array is a matrix of photosensors covered with red, green, and blue colour filters. This setup is advantageous in smartphones as only a third of the required data is captured by the sensor in the camera. The rest of the components based on the colour format can be interpolated using a suitable algorithm to arrive at a full-colour image. Increasing the resolution of the camera sensor will translate to increased bandwidth in the image signal processing pipeline, and consequently power consumption. In addition to that, the bit depth is also on the rise to enhance the colours. These two factors will create a huge impact on the data to be handled in the pertinent processor. Hence, compression of the Bayer data is of immense significance. The existing standard compression schemes can be adapted to suit the Bayer format. Also, several compression schemes, specific to Bayer format have been proposed. Two compression methods, viz. JPEG-LS and Hierarchical Prediction based compression have been tested and the corresponding results are presented in this paper. The former is a standard while the latter has been proposed keeping the Bayer format in mind. Modelling of the algorithms shows that JPEG-LS is best suited in the use cases where lossless compression is desirable, and Hierarchical Prediction based compression is the better option where some amount of loss is acceptable.
拜耳彩色滤光片阵列是一个覆盖着红色、绿色和蓝色滤光片的光传感器矩阵。这种设置在智能手机上是有利的,因为相机中的传感器只捕获了所需数据的三分之一。基于颜色格式的其余组件可以使用合适的算法进行插值,以获得全彩图像。增加相机传感器的分辨率将转化为图像信号处理管道中带宽的增加,从而导致功耗的增加。除此之外,位深度也在上升,以增强颜色。这两个因素将对要在相关处理器中处理的数据产生巨大影响。因此,对拜耳公司的数据进行压缩具有重要意义。现有的标准压缩方案可以适应拜耳格式。此外,还提出了几种针对拜耳格式的压缩方案。本文对基于JPEG-LS和基于分层预测的两种压缩方法进行了测试,并给出了相应的结果。前者是一种标准,而后者是在考虑拜耳格式的情况下提出的。算法的建模表明,JPEG-LS最适合于需要无损压缩的用例,而基于分层预测的压缩是可以接受一定数量的损失的更好选择。
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引用次数: 1
Stator Fault Analysis of Permanent Magnet Synchronous Motor using Finite Element Method 永磁同步电机定子故障有限元分析
P. Naveen, Praveen Kumar N, K. Sriganesh, T. Rajesh, K. Sushmitha
One of the most common faults experienced by the permanent magnet synchronous motor (PMSM) is stator interturn fault which account for 35-40% of the machine failure. This paper focuses on the stator inter-turn fault analysis in the stator winding of Permanent Magnet Synchronous Motor (PMSM) using Finite Element Method. The analysis is carried out for 12.5% and 25% inter-turn short in stator winding of PMSM. The analytical parameters of the motor which includes torque, winding current, induced voltage, speed and electromagnetic parameters like flux density, flux lines and radial flux density were obtained for the faulty machine and compared with the healthy machine. The simulation is done using the ANSYS Maxwell finite element analysis tool.
定子匝间故障是永磁同步电动机最常见的故障之一,占整机故障的35-40%。本文对永磁同步电动机定子绕组匝间故障进行了有限元分析。对永磁同步电机定子绕组12.5%匝间短路和25%匝间短路进行了分析。得到了故障电机的解析参数,包括转矩、绕组电流、感应电压、转速以及磁通密度、磁通线、径向磁通密度等电磁参数,并与正常电机进行了比较。采用ANSYS Maxwell有限元分析工具进行仿真。
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引用次数: 3
Integrated Secure Columnist Hexpod All- Terrain Full Time Counter-Foe Master 综合安全专栏作家六脚全地形全职反敌人大师
N. Ashwini, N. Swathi, L. Prem, B. Nithin, A. N. Prajwal, G. A. S. Raghavendra
The present technology in the defence for the surveillance system is not effective. The different ways in which intruders invading to an unauthorized territory has increased over a year and thus causing a massive destruction and other violence which in turn results in life losses and, disturbs the peace of a country. There is no much advanced technology which can control the trespassers from invading, navigating on any terrain condition and on water with full time surveillance. In this paper, we have proposed a counter-foe night vision eyed robot, for monitoring and recognizing the foe activities along with authorized and unauthorized persons discernation within the premises using advanced Haar transformation and face recognition system with weapon detection capability. If robot recognizes any unusual activities, will automatically captures the scene and send the processed image to the base station. It can also transmit live video if necessary, at certain condition. Unlike recent technologies robot has also got the capability for detecting the invisible foe activities that takes place beneath the terra-firm with terrain switching mechanism.
目前对监视系统的防御技术并不有效。入侵者入侵未经授权领土的不同方式在一年中有所增加,从而造成大规模破坏和其他暴力,从而造成生命损失并扰乱一个国家的和平。没有什么先进的技术可以控制入侵者在任何地形条件下的入侵和航行,也没有全天候监视的水上航行。在本文中,我们提出了一种对抗敌人的夜视眼睛机器人,用于监控和识别敌人的活动,以及使用先进的哈尔变换和具有武器探测能力的人脸识别系统识别房屋内的授权和未经授权的人员。如果机器人识别到任何异常活动,将自动捕捉现场并将处理后的图像发送到基站。如果有必要,在一定的条件下,它还可以传输实时视频。与最近的技术不同,机器人还具有探测地面下发生的隐形敌人活动的能力-地形切换机制。
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引用次数: 0
Dual-Band Shared-Aperture Reflectarray Antenna Element at Ku-Band for the TT&C Application of a Geostationary Satellite ku波段双频共孔径反射天线单元在静止卫星测控中的应用
Daliya Velandi Thiruvoth, A. Raj, B. P. Kumar, V. S. Kumar, R. Gupta
A dual-band reflectarray microstrip patch antenna element is presented in this paper. The concept of polarization diversity is effectively utilized in the design with the cross-polarization level obtained well below -25dB in both the principal planes. This supports the implementation of dual-band operation from the same element. The two orthogonal modes of a rectangular patch: TM01, and TM10, are exploited for the dual-band operation. The inherent narrow bandwidth of the element fulfils the requirement of the present work at both the downlink and uplink frequencies of 11.4 GHz and 13.2 GHz respectively. The bandwidth is measured to be 2% to 3%, which effectively keeps the design simple. Also, a good port isolation of 27 dB at downlink band and 20 dB at uplink band are observed. A measured return loss of 17.7 dB at 11.4 GHz and 26 dB at 13.2 GHz are obtained with an acceptable deviation of only 0.65% (75 MHz) at downlink frequency. Based on this element a configuration for dual-band reflectarray is also proposed.
介绍了一种双频反射式微带贴片天线元件。在设计中有效地利用了极化分集的概念,在两个主平面上获得了远低于-25dB的交叉极化电平。这支持从同一元件实现双频操作。利用矩形贴片的两种正交模式TM01和TM10实现双波段工作。该元件固有的窄带带宽分别在11.4 GHz和13.2 GHz下行和上行频率上满足了当前工作的要求。测量的带宽为2% ~ 3%,有效地保持了设计的简单性。此外,还观察到良好的端口隔离,在下行频段为27 dB,在上行频段为20 dB。在11.4 GHz和13.2 GHz的测量回波损耗分别为17.7 dB和26 dB,在下行频率上的可接受偏差仅为0.65% (75 MHz)。在此基础上提出了一种双波段反射天线的结构。
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引用次数: 22
期刊
2019 4th International Conference on Recent Trends on Electronics, Information, Communication & Technology (RTEICT)
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