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2021 International Conference on Advances in Computing and Communications (ICACC)最新文献

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A Low Power Hard Decision Decoder for BCH Codes BCH码的低功耗硬判决解码器
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708303
Pranitha Garlapati, B. Yamuna, Karthi Balasubramanian
In decoding of Bose-Chaudhuri-Hocquenghem codes, Peterson’s algorithm is more efficient for codes with single, double and triple error correcting capabilities. Numerous methods were proposed to reduce the hardware complexity caused due to the inversion operation involved in the Peterson’s algorithm. In this paper, a low complex hardware BCH decoder using inversion-less Peterson’s algorithm presented in literature is designed and its performance is verified with the Matlab results. An attempt is made to design a low power version of this low complex BCH decoder by replacing the parallel Chien search architecture in the decoder with the two-step p-parallel Chien search approach that is originally used in literature with the Berlekamp-Massey Algorithm. For use with the inversion-less Peterson’s algorithm the parallel Chien search architecture has been modified and the resultant decoder has shown a power reduction of up to 42 percentage with a moderate increase in area by 10 percentage.
在Bose-Chaudhuri-Hocquenghem码的译码中,Peterson算法对具有单、双、三重纠错能力的码的译码效率更高。提出了许多方法来降低由于Peterson算法中涉及的反演操作而导致的硬件复杂性。本文采用文献中提出的无反转Peterson算法设计了一种低复杂度硬件BCH译码器,并用Matlab测试结果验证了其性能。我们尝试设计这种低复杂度BCH解码器的低功耗版本,方法是用文献中最初使用的Berlekamp-Massey算法的两步p-并行Chien搜索方法取代解码器中的并行Chien搜索架构。对于使用无反转的Peterson算法,对并行Chien搜索架构进行了修改,由此产生的解码器显示出功耗降低高达42%,面积适度增加10%。
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引用次数: 3
Implementation of Low Complexity Signal Tracking Loop of a GPS Receiver Using CORDIC Algorithm 用CORDIC算法实现GPS接收机低复杂度信号跟踪环路
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708191
Vishnu Vijay, Rohan Mathew George, Sneha Joe, Swetha Shajee Dominic, R. Joseph, Sherin Sunil Jose, Simi Zerine Sleeba, Arun Ashok
Global Positioning System (GPS) receivers constitute a topic of great importance since they have applications in many fields of science and industry to determine the users position, velocity and time. In order to determine position, GPS receivers needs to know the navigation message which is obtained by demodulating the received signal. Demodulating process requires the local harmonic signal and the received signal to have a phase alignment of relatively high accuracy. In this paper we focus on the digital design of the Signal Tracking Loop of a customized GPS receiver. We present a novel implementation of the Carrier Discriminator used in the signal tracking loop using CORDIC Algorithm which reduces the computational complexity of mathematical operations.
全球定位系统(GPS)接收机在科学和工业的许多领域都有应用,用于确定用户的位置、速度和时间,因此是一个非常重要的课题。为了确定位置,GPS接收机需要知道接收信号解调后得到的导航电文。解调过程要求本端谐波信号与接收信号具有较高精度的相位对准。本文重点研究了定制GPS接收机信号跟踪环路的数字化设计。提出了一种基于CORDIC算法的信号跟踪环路载波鉴别器的实现方法,降低了数学运算的计算复杂度。
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引用次数: 0
Memristor based Tunable Negative Group Delay Circuit 基于忆阻器的可调谐负群延迟电路
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708356
C. L. Palson, R. K. Sreelal, D. D. Krishna, B. R. Jose
The rise of new generation communication systems requires high-quality signal transmission with significantly less signal distortion. Hence to ensure the quality, a tri-band Negative Group Delay Circuit (NGDC) is designed utilizing bandstop characteristics to compensate for the undesired positive group delays. In this work, L and U shaped stubs are etched on the 50 Ohm transmission line to generate NGD. Further, a memristor is connected across a slot to bring about tunability to the group delays, wherein it acts as a tunable resistance.
新一代通信系统的兴起要求高质量的信号传输,显著减少信号失真。因此,为了保证质量,设计了一个三波段负群延迟电路(NGDC),利用带阻特性来补偿不希望的正群延迟。在这项工作中,L形和U形的存根被蚀刻在50欧姆的传输线上,产生NGD。此外,跨槽连接忆阻器以使组延迟可调谐,其中忆阻器作为可调谐电阻。
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引用次数: 1
Freshness Estimator for Fruits and Vegetables Using MQ Sensors 基于MQ传感器的果蔬新鲜度估计
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708369
S. Bala Naga Pranav, T. R. Kaushek Kumar, J. Hari Prakash, S. Sharan, M. Ganesan
To understand the freshness of fruits and vegetables, there is always a necessity to build a device that can automate the process of detecting the freshness. The objective of this paper is to build a device that measures the quality of fruit and vegetables and provides an output based on its edibility. Arduino UNO (microprocessor) along with MQ2, MQ4 (gas sensors Mĭngăn Qǐ lai 2, 4) and IR (Infra-Red) sensors are used to detect the concentration of Methane (CH4) and Ethylene (C2H4) in ppm (Parts Per Million). It was found that the excess ripening after which the fruit starts decomposing has a concentration of 300ppm (Ethylene) for all fruits and vegetables. The decomposition results in producing trace amounts of Methane gas, which is also detected using the MQ4 sensor. With all these constraints, the result is calculated by the microprocessor and is displayed in a 16x2 LCD display. The testing process of the device involved many fruits and vegetables. In this work two common fruits (Mango, Banana) and a common vegetable (Tomato) was deeply analyzed and found that the concentration of Ethylene is very much higher than 300 ppm in the fruits or vegetables which are highly decayed and are considered as unfit for the human consumption. It was also found that the ppm curve with respect to time axis derived from the sensor shows a very less deviation for the highly fresh fruits or vegetables. This device can be implemented in all food-based industries where there is a necessity to compute the freshness of fruits and vegetables. The simplicity and cost-efficiency of the device makes it a perfect product that can be used by everyone.
为了了解水果和蔬菜的新鲜度,总是有必要建立一个可以自动检测新鲜度的设备。本文的目的是建立一种测量水果和蔬菜质量的装置,并根据其可食性提供输出。Arduino UNO(微处理器)以及MQ2, MQ4(气体传感器Mĭngăn q / lai 2,4)和IR(红外)传感器用于检测以ppm(百万分之一)为单位的甲烷(CH4)和乙烯(C2H4)的浓度。结果发现,水果在过度成熟后开始分解,所有水果和蔬菜的乙烯浓度为300ppm(乙烯)。分解会产生微量的甲烷气体,MQ4传感器也可以检测到这种气体。在所有这些约束条件下,结果由微处理器计算并显示在16x2 LCD显示器上。该设备的测试过程涉及许多水果和蔬菜。本研究对两种常见的水果(芒果、香蕉)和一种常见的蔬菜(番茄)进行了深入分析,发现乙烯在高度腐烂的水果或蔬菜中的浓度远远高于300ppm,被认为不适合人类食用。还发现,从传感器得出的ppm曲线相对于时间轴的偏差对高度新鲜的水果或蔬菜来说非常小。该设备可用于所有需要计算水果和蔬菜新鲜度的食品行业。该设备的简单性和成本效益使其成为每个人都可以使用的完美产品。
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引用次数: 3
Analysing Gender and Age Aspects of Cyberbullying through Online Social Media 通过在线社交媒体分析网络欺凌的性别和年龄方面
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708197
Mariya Raphel, P. J. Parvathi, Rizwana Yasmin Hashim, Rohan J Thevara, P. Deepasree Varma
In this paper, we focus at tracking down cyberbullies and categorize them based on their age and gender. The dataset that we use to analyze this information is provided by the MySpace group data labeled for cyberbullying. Machine learning classifiers are trained using this data to detect cyberbullies and later we analyze the age and gender patterns of those cyberbullies. We look for features that are simple to extract as well as yield good outcomes. As appropriate training data is often tough to obtain in machine learning-specially in the domain of cyberbullying detection - we also examine to what extend does lesser amounts of training data would contribute to better outcomes by performing cross-validation. Our findings show that employing a few yet expressive features has a significant benefit in detecting cyberbullies, particularly when size of training data is small.
在这篇论文中,我们的重点是追踪网络恶霸,并根据他们的年龄和性别对他们进行分类。我们用来分析这些信息的数据集是由标记为网络欺凌的MySpace组数据提供的。机器学习分类器使用这些数据进行训练,以检测网络欺凌者,然后我们分析这些网络欺凌者的年龄和性别模式。我们寻找的特征是简单的提取,并产生良好的结果。由于在机器学习中通常很难获得适当的训练数据,特别是在网络欺凌检测领域,我们还研究了通过执行交叉验证,在多大程度上较少的训练数据将有助于获得更好的结果。我们的研究结果表明,使用一些有表现力的特征在检测网络欺凌者方面有显著的好处,特别是当训练数据的大小很小的时候。
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引用次数: 0
CMOS based variable gain LNA at V-Band 基于CMOS的v波段可变增益LNA
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708219
Nallagatla Roopika, M. Moheth, Sure Vinod, P. Sanjana, K. Balamurugan
Recent advancements in semiconductor technologies supports high data rate communications in V-band. Particularly 60 GHz encourages short range multi Gbps transmission suitable for multimedia applications. The first block of the receiver, Low Noise Amplifier (LNA) should have high gain requirements simultaneously maintaining low noise Figure (NF). This work consists of designing Variable Gain (VG) LNAs over the desired bandwidth (57–64) GHz in the V – Band. Variable loads formed by active devices are used to change body transconductance of amplifying transistor. It is found that better tuning range of 19.23 dB/V is achieved with lower noise Figure of 1. 4SSdB for PMOS variable load LNA. Almost 3.57 GHz bandwidth is achieved with figure-of-the-merit (FOM) of >S in all LNAs.
半导体技术的最新进展支持v波段的高数据速率通信。特别是60 GHz鼓励适合多媒体应用的短距离多Gbps传输。接收机的第一块,低噪声放大器(LNA)应具有高增益要求,同时保持低噪声图(NF)。这项工作包括在V波段设计超过所需带宽(57-64)GHz的可变增益(VG) LNAs。利用有源器件形成的可变负载来改变放大晶体管的本体跨导。结果表明,在噪声较低的情况下,调谐范围达到了19.23 dB/V。4SSdB用于PMOS可变负载LNA。在所有lna的性能因数(FOM) >S的情况下,实现了近3.57 GHz的带宽。
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引用次数: 1
Comorbidity Based Risk Prediction System for ARDS in COVID-19 Patients 基于合并症的COVID-19患者ARDS风险预测系统
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708206
Nitin Rajesh, Vysakh Thachileth Poulose, P.L. Umesh, Renu Mary Daniel
The Coronavirus disease is an acute respiratory disease that has been designated as a pandemic by the WHO(World Health Organization).The rapid increase in the number of illnesses and death rates has put enormous strain on public health services. Hence, its critical to recognize the comorbidities in COVID-19 patients that led to ARDS(Acute Respiratory Distress Syndrome). In this paper, we use machine learning and deep learning methods to classify high risk COVID-19 patients with accurate results. This paper might speed up decisions made in public health services for predicting medical resources as well as early classification of high risk COVID-19 patients.
新冠肺炎是世界卫生组织(WHO)指定为大流行的急性呼吸道疾病。疾病数量和死亡率的迅速增加给公共卫生服务带来了巨大的压力。因此,识别导致ARDS(急性呼吸窘迫综合征)的COVID-19患者的合并症至关重要。在本文中,我们使用机器学习和深度学习方法对COVID-19高危患者进行分类,并获得准确的结果。该研究可加快公共卫生服务决策,预测医疗资源,早期分类高危患者。
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引用次数: 0
Design of ESD Protection Circuits for LNA Using 65-nm CMOS Technology 基于65nm CMOS技术的LNA ESD保护电路设计
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708297
Lakshmi Nair, K. Balamurugan, M. Jayakumar
In the past couple of years, 60 GHz communications have encountered a progress to cover industrial, scientific and commercial applications. The focus of this work is to design electrostatic discharge (ESD) for 60 GHz low noise amplifier (LNA) utilizing 65-nm CMOS technology. In order to improve performance, custom designed spiral inductor working around 60 GHz frequency band has been illustrated. The circuit under test consists of a two-stage common source low noise amplifier. The proposed ESD protection circuits consisting of customized inductor offers less parasitic capacitance and renders lower RF degradation. The measured results shows that the proposed design achieves a gain of 37 dB and noise Figure of 2.745 dB at 60 GHz with 20 mW power consumption.
在过去的几年中,60 GHz通信已经取得了覆盖工业、科学和商业应用的进展。本文的工作重点是利用65纳米CMOS技术设计60 GHz低噪声放大器的静电放电(ESD)。为了提高性能,设计了一种工作在60ghz频段的螺旋电感器。被测电路由一个两级共源低噪声放大器组成。所提出的由定制电感组成的ESD保护电路具有较小的寄生电容和较低的射频退化。测量结果表明,该设计在60 GHz时的增益为37 dB,噪声系数为2.745 dB,功耗为20 mW。
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引用次数: 1
Various Approaches in Plant Species Identification and Plant Disease Detection Using Digital Images of Leaves 利用叶片数字图像进行植物物种鉴定和病害检测的各种方法
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708308
Annie Augustine, K. Sherly
Plants and trees are an inevitable part of our life. All these species contribute to biodiversity, provide clean and fresh air, prevent soil erosion, home remedy, and many more. Acquiring knowledge about species is essential for protecting biodiversity. The identification of plants by conventional methods is complex and time-consuming for novices. Also, many species are endangered because of human encroachment and due to diseases affecting plants. These plant diseases cause economic, social, and ecological losses. In this context, diagnosing diseases accurately and timely and doing the necessary control measures is of the utmost importance. There have been many technological advancements in the area of computer vision to identify plant species and diseases automatically. This paper aims to present various approaches in leaf recognition and disease detection using digital images of leaves. Various phases in image classification using conventional machine learning models and deep learning techniques have been discussed. A comparative study on various paper works and their performance have also been analyzed.
植物和树木是我们生活中不可避免的一部分。所有这些物种都有助于生物多样性,提供清洁新鲜的空气,防止土壤侵蚀,家庭补救措施等等。获取有关物种的知识对保护生物多样性至关重要。对新手来说,用常规方法鉴定植物既复杂又费时。此外,由于人类的入侵和植物疾病的影响,许多物种濒临灭绝。这些植物病害造成经济、社会和生态损失。在这种情况下,准确及时地诊断疾病并采取必要的控制措施是至关重要的。计算机视觉在自动识别植物种类和病害方面取得了许多技术进步。本文旨在介绍利用叶片数字图像进行叶片识别和病害检测的各种方法。讨论了使用传统机器学习模型和深度学习技术进行图像分类的各个阶段。并对各种纸制品及其性能进行了比较研究。
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引用次数: 0
Comparison of ALEXNET and VGG16 for Analysis of Plant Leaf Disease ALEXNET与VGG16在植物叶片病害分析中的比较
Pub Date : 2021-10-21 DOI: 10.1109/ICACC-202152719.2021.9708075
Dayana Mariya Tomy, Aleena M. Jaison, Aksa Christopher, Arun Tomy, Jaison Jacob, A. Harsha
Plant leaves are most commonly affected by diseases caused by bacteria, fungi or viruses which results in an immense decrease in the yield from plants. Since most of the people in India are dependent on agriculture there is a need to detect the plant leaf diseases at an early stage. This paper discusses the plant leaf disease detection using two convolutional neural networks that is AlexNet and VGG16. Both the model was trained using dataset of 38 different classes of plant leaves. The role of number of images, learning rate and freezing of layers in the classification accuracy and training time have been analyzed. Further the prediction of noisy images was performed by using both models and remedy for the disease was displayed.
植物叶片最常受到细菌、真菌或病毒引起的疾病的影响,这些疾病导致植物产量大幅下降。由于印度大多数人依赖农业,因此有必要在早期阶段发现植物叶片疾病。本文讨论了AlexNet和VGG16两个卷积神经网络在植物叶片病害检测中的应用。这两个模型都是使用38种不同类型植物叶片的数据集进行训练的。分析了图像数量、学习率和层冻结对分类精度和训练时间的影响。进一步利用两种模型对噪声图像进行了预测,并给出了治疗方法。
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引用次数: 0
期刊
2021 International Conference on Advances in Computing and Communications (ICACC)
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