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2022 2nd Asian Conference on Innovation in Technology (ASIANCON)最新文献

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Performance Analysis of Wideband Spectrum Sensing (WSS) in Cognitive Radio Networks (CRN) over Erroneous Sensing and Reporting Channels 认知无线网络(CRN)中基于错误感知和报告信道的宽带频谱感知(WSS)性能分析
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9908624
Kiran Kumar Godugu, Suseela Vappangi
With the aid of cooperative spectrum sensing (CSS), the performance characteristics of non-cooperative cognitive radio (CR) nodes can be substantially improved under the scenario of shadowing, fading, uncertainties in the channel, etc. Predominantly, the CSS scheme decreases the probabilities of miss-detection and false alarm considerably. The CSS is also mapped into multiple primary users (PU) detection schemes using orthogonal frequency division multiplexing (OFDM) technique. In this paper, we introduce a novel multi-band joint detection scheme known as wide-band spectrum sensing (WSS) in cognitive radio networks (CRN) that jointly detects various available channels rather than one frequency at a time. The proposed WSS not only enhances the dynamic spectrum utilization but also lowers the interference to the PUs. Furthermore, by lowering the PU’s interference over AWGN channel, the optimal solutions for WSS under non-cooperative and cooperative systems are investigated. This work formulates the mathematical framework for measuring miss-detection as well as total error probability (TEP). The derived analytical expressions are validated through MATLAB-based simulations. From the simulated results, it can be deduced that the proposed WSS scheme significantly enhances the performance of the system when compared with the conventional CSS schemes.
借助协同频谱感知(CSS),非合作认知无线电(CR)节点在信道阴影、衰落、不确定性等情况下的性能特性得到了显著改善。CSS方案显著降低了误检和虚警的概率。CSS还通过正交频分复用(OFDM)技术映射成多个PU (primary user)检测方案。在本文中,我们介绍了一种新的多波段联合检测方案,即认知无线电网络(CRN)中的宽带频谱感知(WSS),它可以联合检测各种可用信道,而不是一次检测一个频率。所提出的WSS不仅提高了动态频谱利用率,而且降低了对pu的干扰。此外,通过降低PU对AWGN信道的干扰,研究了非合作和合作系统下WSS的最优解。这项工作制定了测量漏检和总误差概率(TEP)的数学框架。通过matlab仿真验证了推导出的解析表达式。仿真结果表明,与传统的CSS方案相比,所提出的WSS方案显著提高了系统的性能。
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引用次数: 1
Calibration of Cross Capacitive Sensor used for Transformer Oil Testing 变压器油试验用交叉电容式传感器的标定
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9908609
Mahammad Aamir Mahmood, Obaidur Rahman, S. A. Khan
In this work, an effort is being made to calibrate a cross capacitive sensor when used to measure the concentration of insulation degradation parameters in transformer oil. The cross capacitive sensor offers many privileges in oil-based sensing. Moisture and 2-furfuraldehyde (2-FAL) are the two most important insulation degradation by- products. The concentration of moisture and 2-FAL with in the oil has been directly related to the condition of transformer insulation. The cross-capacitive sensor is calibrated using regression analysis for the measurement of 2-FAL, moisture and mixture of 2-FAL and moisture in the oil.
在这项工作中,正在努力校准用于测量变压器油中绝缘降解参数浓度的交叉电容传感器。交叉电容式传感器在油基传感中具有许多优势。湿气和2-糠醛(2-FAL)是两种最重要的绝缘降解副产物。油中水分和2-FAL的浓度直接关系到变压器的绝缘状况。使用回归分析对交叉电容式传感器进行校准,用于测量油中2-FAL、水分以及2-FAL和水分的混合物。
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引用次数: 1
Design of QAM in 45nm Using Cadence Tool 利用Cadence工具设计45nm的QAM
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9909362
Ravi Hosamani, Govindaraj Tonape, Harshavardhana Mannur, Basavaraj Neelagund
For wireless communication, low-power modulators are Widely used because of their efficiency. Quadrature Amplitude Modulation (QAM) is one of the popularly employed modulation Techniques for high data rate transmission. This paper describes the analysis of the parameters like power and area of 32bit and 64bit QAM modulators. In this proposed approach, a Lookup table is used to store cosine and sine wave data generated using traditional methods. To generate the output signal, the stored data is chosen on the input data stream. The modulator is simulated and synthesized, and results are compared in 180nm, 90nm, and 45nm in Cadence’s genus tool. The proposed model is designed and developed in Verilog code using cadence. The layout of the 64qam modulator is carried out in the cadence’s innovus tools with 45nm technology.
在无线通信中,低功率调制器因其效率高而得到广泛应用。正交调幅(QAM)是一种广泛应用于高数据速率传输的调制技术。本文对32位和64位QAM调制器的功率、面积等参数进行了分析。在该方法中,使用查找表来存储使用传统方法生成的余弦和正弦波数据。为了产生输出信号,在输入数据流上选择存储的数据。对该调制器进行了仿真和合成,并在Cadence的属工具中对180nm、90nm和45nm的调制器结果进行了比较。所提出的模型是在Verilog代码中使用cadence设计和开发的。64qam调制器的布局是在cadence创新的45纳米技术工具中进行的。
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引用次数: 1
Investigation on Switching Structure Geometries and their Impact on Electromagnetic Response of RF-MEMS Capacitive Switch RF-MEMS电容开关结构几何形状及其对电磁响应影响的研究
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9909237
R. Kumari, M. Angira
This paper explores the impact of various switching structure geometries on the RF performance of a shunt capacitive switch. The switch geometries have been analysed as an electrical model in order to develop an understanding of the effect of geometrical changes in terms of scattering (S) parameters which affects the RF response of the switch. A RF-MEMS capacitive switch is built into a finite element method (FEM) based RF tool and the effect of meandering, actuation area, and further dielectric thickness have been analysed in this work. It is investigated that with an increase in the number of meanders, switch resistance and inductance have increased and thus the isolation peak is shifted towards low frequencies compared to the design having a low number of meanders. The switch with a smaller central overlap area has a good on-state response compared to the design having more central overlap area. Furthermore, reduction of dielectric thickness affects unactuated state response by tuning isolation to lower frequencies with a wider range of under 20 dB response points. As a result of the understandings gained from analysed structural modifications, designers can optimize the RF performance of the capacitive shunt switch in the desired frequency range.
本文探讨了各种开关结构几何形状对并联电容开关射频性能的影响。为了理解几何变化对开关射频响应的影响,我们将开关几何形状作为电模型进行了分析。将RF- mems电容开关内置到基于有限元法的RF工具中,分析了弯曲、驱动面积和进一步介电厚度对RF开关的影响。研究表明,与曲线数较少的设计相比,随着曲线数的增加,开关电阻和电感增加,因此隔离峰向低频偏移。与中心重叠面积较大的开关相比,中心重叠面积较小的开关具有良好的导通响应。此外,介质厚度的减小通过将隔离调谐到更低的频率,在20db响应点以下的更宽范围内影响非驱动状态响应。由于从分析的结构修改中获得的理解,设计人员可以在所需的频率范围内优化电容并联开关的射频性能。
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引用次数: 1
Study and Analysis of Field Oriented Control of Brushless DC Motor Drive using Hysteresis Current Control Technique 基于磁滞电流控制技术的无刷直流电动机磁场定向控制研究与分析
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9909355
Gopal Gupta, M. Sreejeth
With the increasing use of Electric Vehicle, Brushless DC Motor is gaining ground as its mainly used in 2W and 3W. For efficient controlling of Brushless DC Motor, Field Oriented Control becomes prominent. This paper presents the Field Oriented Control of Brushless DC Motor Drive using Hysteresis Control Technique. FOC algorithm is derived from the dynamic modelling of Brushless DC Motor. The simulation and modelling of BLDC Drive is done in MATLAB/Simulink Environment.
随着电动汽车使用的增加,无刷直流电动机主要应用于2W和3W,正在获得发展。为了有效地控制无刷直流电动机,磁场定向控制成为一个突出的问题。本文介绍了利用磁滞控制技术实现无刷直流电动机驱动的磁场定向控制。FOC算法来源于无刷直流电动机的动态建模。在MATLAB/Simulink环境下对无刷直流电机进行了仿真和建模。
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引用次数: 0
A Novel Approach to Chest Disease Detection from Chest X-Ray Images 从胸部 X 射线图像检测胸部疾病的新方法
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9909156
Swati Patil, Snehal R. Rathi, Vaibhav Mankar
Chest diseases are one of the common diseases in humans, many viral borne diseases also attack the respiratory systems. In such situations, it becomes very important to detect and cure the disease as soon as possible. The chest x-ray is one of the most important sources to detect and identify chest disease. However, detecting the disease can be complicated and may require several medical tests. With the advancement in computer vision technologies, machines can extract information from images. We have trained the computer vision-based models for the task of phenomena disease delectation from the chest x-ray images. In this research paper, we present the novel approach for disease delectation using the ribs extractor framework. The ribs extractor model presented in this research paper was developed using the Conditional generative adversarial network. We have used CNN, densenet, resnet, VGG, and vision, transformer models. We have employed the transfer learning techniques for densenet, resnet, and VGG models. We also present the comparative study of the computer vision models without and with ribs extractor. Finally, we discuss the future scope and suggest ways to improve computer-aided disease detection. We hope that this research helps the research community to better understand medical image centric disease detection.
胸部疾病是人类常见疾病之一,许多病毒性疾病也会侵袭呼吸系统。在这种情况下,尽快发现和治愈疾病就变得非常重要。胸部 X 光是检测和识别胸部疾病的最重要来源之一。然而,疾病的检测可能比较复杂,需要进行多项医学检查。随着计算机视觉技术的发展,机器可以从图像中提取信息。我们训练了基于计算机视觉的模型,用于从胸部 X 光图像中发现疾病现象。在本研究论文中,我们介绍了使用肋骨提取器框架进行疾病选择的新方法。本研究论文中介绍的肋骨提取模型是利用条件生成对抗网络开发的。我们使用了 CNN、densenet、resnet、VGG 和视觉转换器模型。我们对 densenet、resnet 和 VGG 模型采用了迁移学习技术。我们还对不带肋骨提取器和带肋骨提取器的计算机视觉模型进行了比较研究。最后,我们讨论了未来的发展方向,并提出了改进计算机辅助疾病检测的方法。我们希望这项研究能帮助研究界更好地理解以医学影像为中心的疾病检测。
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引用次数: 0
Modelling of 2D Photonic Crystal based Micro Ring Resonator Sensor for the Detection of Malaria 基于二维光子晶体的微环谐振器疟疾检测传感器建模
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9909063
Rupinder Kaur, Gaurav Kumar Bharti, Ashutosh Tripathi
In this paper, a 2D Photonic crystal based optical biosensor has been proposed and modelled for the detection of malaria. The model comprises of an optical micro ring resonator. The variation in the refractive index (RI) of the human blood cells has been observed from the normal to the infected one. This variation leads to the shift in intensity of the light and helps to detect whether the cell is normal or infected. The proposed design has high sensitivity of 942.8 nm/RIU with a Q-factor of around 750. The simulation and analysis of the design has been done using Finite difference time domain (FDTD) method.
本文提出了一种基于二维光子晶体的光学生物传感器,并建立了用于疟疾检测的模型。该模型由一个光学微环谐振器组成。观察了人体血细胞的折射率(RI)从正常到感染的变化。这种变化导致光线强度的变化,有助于检测细胞是正常的还是被感染的。该设计具有942.8 nm/RIU的高灵敏度,q因子约为750。采用时域有限差分(FDTD)方法对设计进行了仿真分析。
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引用次数: 4
Open Source Python Libraries: An Application to Seismic Reservoir Characterization 开源Python库:地震储层表征的应用
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9909402
Sayantan Shaw
Open source python libraries to implement linear operators are finding widespread applications in solving different problems of seismic data processing and interpretation. One such attempt has been made to invert acoustic impedance of layered earth structure from seismic reflection response observed on the earth’s surface. The present algorithm combines two established approaches, viz. i) using correlation as the adjoint operator of convolution and ii) using conjugate gradient solver as an alternative to matrix inversion-a commonly used method to solve constrained optimization problems. Time integration of the derived reflectivity from the inversion of observed seismic amplitude using the above two steps gives rise to bandpass acoustic impedance, thereby, enhancing the interpretive value of the results. The proposed algorithm has been tested on a two-dimensional wedge model and found to fare well for both noise free and noise corrupted synthetic data. Application on real field example from Teapot Dome 3D survey shows that the derived band pass acoustic impedance matches favorably with the acoustic impedance measured in a borehole.
实现线性运算符的开源python库在解决地震数据处理和解释的不同问题中得到了广泛的应用。利用在地表观测到的地震反射响应反演层状大地结构的声阻抗。本算法结合了两种已建立的方法,即i)使用相关作为卷积的伴随算子,ii)使用共轭梯度求解器作为求解约束优化问题的常用方法矩阵反演的替代方法。利用上述两步反演地震振幅所得反射率的时间积分得到带通声阻抗,从而增强了结果的解释价值。该算法已在二维楔形模型上进行了测试,结果表明该算法对无噪声和受噪声破坏的合成数据都有很好的效果。通过对Teapot Dome三维测量实例的应用表明,推导出的带通声阻抗与井中实测声阻抗吻合较好。
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引用次数: 0
Ontology Construction and Knowledge Graph for Cross Domain Unstructured Text 跨领域非结构化文本本体构建与知识图谱
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9908942
Shital Kakad, Sudhir Dhage
Ontology construction takes a lot of effort and time. Semantic web extract accurate knowledge from large databases. In this paper, an ontology construction process is proposed for cross domain data. The amazon and flip kart reviews are taken to construct ontology for unstructured text data . The data is pre-processed to clean and remove noise. The combined approach of cosine similarity and TF-IDF has been used to find similarity. Further, K means clustering is applied to identify topics. The hierarchical clustering is implemented to represent ontology. The accuracy, precision and recall are calculated by applying different classifier algorithms like Decision Tree Classifier, Gaussian NB, Random Forest Classifier, Support vector classifier and, K Neighbors Classifier. Support vector classifiers show excellent results comparative to other classifier algorithms. Support vector classifier performance shows accuracy - 0.70%, precision- 0.83% , recall- 0.70% and F1-score - 0.73%.
构建本体需要花费大量的精力和时间。语义网从大型数据库中提取准确的知识。提出了一种面向跨领域数据的本体构建方法。采用amazon和flip kart评论来构建非结构化文本数据的本体。对数据进行预处理,去除噪声。利用余弦相似度和TF-IDF相结合的方法来寻找相似度。此外,K均值聚类应用于识别主题。实现了层次聚类来表示本体。采用不同的分类器算法,如决策树分类器、高斯NB、随机森林分类器、支持向量分类器和K近邻分类器,计算准确率、精密度和召回率。与其他分类器算法相比,支持向量分类器表现出优异的分类效果。支持向量分类器的准确率为0.70%,精密度为0.83%,召回率为0.70%,F1-score为0.73%。
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引用次数: 0
Malaria Cell Image Classification using Autoencoder 基于自编码器的疟疾细胞图像分类
Pub Date : 2022-08-26 DOI: 10.1109/ASIANCON55314.2022.9908823
S. Bobde, Siddharth Shenoy, Omkar Shete, Omkar Shinde, Harsh Jhunjhunuwala
Over the years, many researchers have sought to use Deep Learning techniques to detect the malaria-infected cells in blood sample images. Although extremely dangerous, the spread of malaria can be restricted when treated in the early stages. This serves as an impetus for implementing an accurate solution for the detection of malaria that can replace the traditional manual process. The manual process consists of visually examining the blood samples and counting the parasitized and non-parasitized red blood cells. This process is extremely time-consuming, requires the presence of trained medical personnel, and is susceptible to human errors. With these aspects in mind, we aimed to develop a solution that could be used by medical staff with minimal training, thereby saving on time and labour. Having studied various research papers related to the use of Deep Learning techniques for the detection of malaria, we have proposed a model that addresses the gaps we identified in these systems while not compromising on the accuracy of the results. Our proposed model comprises a pre-processing module, the frozen Encoder of an Autoencoder model, a few dense CNN layers, and the classifier (Softmax).
多年来,许多研究人员试图使用深度学习技术来检测血液样本图像中的疟疾感染细胞。尽管极为危险,但如果在早期阶段进行治疗,疟疾的传播可以得到限制。这将推动实施疟疾检测的准确解决方案,取代传统的人工过程。手工过程包括目视检查血液样本并计数寄生和未寄生的红细胞。这个过程非常耗时,需要训练有素的医务人员在场,而且容易出现人为错误。考虑到这些方面,我们的目标是开发一种解决方案,可以由医务人员使用最少的培训,从而节省时间和劳动力。在研究了与使用深度学习技术检测疟疾相关的各种研究论文之后,我们提出了一个模型,该模型可以解决我们在这些系统中发现的差距,同时不影响结果的准确性。我们提出的模型包括预处理模块、自动编码器模型的冻结编码器、几个密集的CNN层和分类器(Softmax)。
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引用次数: 0
期刊
2022 2nd Asian Conference on Innovation in Technology (ASIANCON)
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