检索结果-内蒙古大学图书馆

SPECKLE NOISE DETECTION AND REMOVING BY MACHINE LEARNING ALGORITHMS IN MULTISENSORY IMAGES FOR 5G TRANSMISSION

Scalable Computing 2024年第4期25卷 2679-2686页

作者： DHARANI, M. NAGENDRANATH, M.V.V.S. RAFEE, SHAIK MOHAMMAD KISHORE, G.NAVEEN VENKATAKRISHNAMOORTHY, T. Department of Electronics and Communiation Engineering Mohan Babu University Andhra Pradesh Tirupathi India Department of Computer Science and Engineering Sasi Institute of Technology and Engineering Andhra Pradesh Tadepalligudem India Department of AIML Sasi Institute of Technology and Engineering Andhra Pradesh Tadepalligudem India Department of Electronics and Communication Engineering Andhra Pradesh Tadepalligudem India Department of Electronics and Communication Engineering Sasi Institute of Technology & Engineering AP Tadepalligudem India

The multispectral satellite sensor images have multibands, which have some typical noise. There is difficult to detect this tipical noise with low resolution image. The satellite local or gloval pixel information and quantificationare degraded due to this noise. Many standard transformations and filtering operations are developed for detection and removing of non-gaussion noise, which are not given sophisticated results with existing methods. These statistical characteristics are applied to those samples to identify and quantify present tipical noise. The higher-order statistical based machine learning algorithm is developing to remove the speckle noise from satellite image. In this proposed algorithm, implemented the higher order statistical approache such as skewness, kurtosis based adaptive curvelet methods are implemented for the detection and suppression of speckle noise with retrieve of spectral and spectral values. The proposed algorithm preserves smooth and sharp details and maintains the tradeoff level in multispectral bands is suitable for advanced high speed 5G communication with the effective rate of transmission. The proposed results are verified with suitable statistical parameters such as PSNR,Entropy and ERGAS values. © 2024 SCPE.

关键词： Learning algorithms

来源：评论

学校读者我要写书评

暂无评论

A model-based tracking control scheme for nonlinear industrial processes involving joint unscented Kalman filter

引用

Journal of Control and Decision 2025年第1期12卷 111-122页

作者： Sanjay Bhadra Atanu Panda Parijat Bhowmick Somasundar Kannan Department of Electrical Engineering University of Engineering and Management Kolkata(UEMK)New TownKolkataWest BengalIndia Department of Electrical Engineering Maulana Abul Kalam Azad University of TechnologyHaringhataNadiaWest BengalIndia Department of Electronics and Communication Engineering Institute of Engineering and Management(IEM)KolkataWest BengalIndia Department of Electronics and Electrical Engineering IIT GuwahatiGuwahatiAssamIndia Department of Electrical Engineering Robert Gordon UniversityAberdeenScotlandUK

This paper proposes a model-based reference tracking scheme for stable,MIMO,nonlinear processes.A Joint Unscented Kalman Filtering technique is exploited here to develop a stochastic model of the physical process via simultaneous estimation of the process states and the time-varying/uncertain *** the existing nonlinear model predictive controllers,the proposed scheme does not involve any dynamic optimisation process,which helps to reduce the overall complexity,computation overburden and execution ***,the proposed methodology offers robustness to process model-mismatch and considers the effects of stochastic disturbances.A nonlinear two-tank liquid-level control problem and a nonlinear coupled level-temperature control process are studied to demonstrate the usefulness of the proposed scheme.

关键词： Model-based control JUKF nonlinear MPC TITO coupled-tank process level-temperature control

来源：评论

学校读者我要写书评

暂无评论

Resolution-aware beam scanning for joint detection and communication in ISAC systems

引用

Science China(Information Sciences) 2025年第5期68卷 250-266页

作者： Yiming XU Dongfang XU Zhanyuan XIE Zheng JIANG Shenghui SONG Derrick Wing Kwan NG Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology China Telecom Research Institute School of Electrical Engineering and Telecommunications University of New South Wales

Beam scanning for joint detection and communication in integrated sensing and communication(ISAC) systems plays a critical role in continuous monitoring and rapid adaptation to dynamic environments. However, the design of sequential scanning beams for target detection with the required sensing resolution has not been tackled in the *** bridge this gap, this paper introduces a resolution-aware beam scanning design. In particular, the transmit information beamformer, the covariance matrix of the dedicated radar signal, and the receive beamformer are jointly optimized to maximize the average sum rate of the system while satisfying the sensing resolution and detection probability requirements.A block coordinate descent(BCD)-based optimization framework is developed to address the non-convex design problem. By exploiting successive convex approximation(SCA), S-procedure, and semidefinite relaxation(SDR), the proposed algorithm is guaranteed to converge to a stationary solution with polynomial time complexity. Simulation results show that the proposed design can efficiently handle the stringent detection requirement and outperform existing antenna-activation-based methods in the literature by exploiting the full degrees of freedom(DoFs) brought by all antennas.

关键词： integrated sensing and communication (ISAC) detection beam scanning resolution beamwidth

来源：评论

学校读者我要写书评

暂无评论

An ESOCVF-FLL Based Frequency Adaptive Two Loop Control Scheme for Seamless Transition of Microgrid Under Weak Grid Conditions

引用

IEEE Transactions on Consumer Electronics 2024年第1期71卷 1-1页

作者： Nanda, Abhishek Abhinav Narayanan, Vivek Singh, Bhim Department of Electrical Engineering Indian Institute of Technology Delhi New Delhi India Electrical and Computer Engineering Department National University of Singapore Lower Kent Ridge Rd Singapore

A centralized real-time control based on recent guidelines and standards is presented in this work. The present study introduces a two-loop control capable of adapting to frequency changes, enabling a seamless transition. Obtained results indicate that this approach achieves synchronization during frequency step change and sinusoidal variation of utilitys frequency following its restoration. Moreover, presence of DC-offset in grid voltages is considered. An enhanced second-order complex vector filter (ESOCVF)-based frequency locked loop (FLL) is designed to estimate input signal’s exact magnitude, frequency, and phase. Its performance during phase jump and frequency jump is considered and is compared with second order generalized integrator (SOGI), second-order-complex vector filter (SO-CVF) and third-order-complex vector filter (TO-CVF)-based FLL structures to demonstrate performance superiority of ESOCVF-based FLL in tracking of frequency and phase. Performance of various controls of solar photovoltaic (PV) array and battery energy storage system (BESS) based MG are studied in both grid-interfaced (GI) and standalone (SA) modes. IEEE

关键词： Synchronization

来源：评论

学校读者我要写书评

暂无评论

Reducing the Number of Measurements of a Multiport Circuit Using Covering Designs and Turán Systems

引用

IEEE Microwave and Wireless Technology Letters 2023年第2期33卷 115-117页

作者： Chien, Yung-Chi Liu, Hsu-Wei Wu, Tzong-Lin Department of Electrical Engineering Graduate Institute of Communication Engineering National Taiwan University Taipei10617 Taiwan

A theory of arrangements of measurements for obtaining the scattering matrix of a v-port circuit using a k-port vector network analyzer (VNA) is developed based on covering designs and Turán systems, which are two kinds of structures in combinatorial design theory. The results of this letter provide a general strategy for reducing the number of multiport measurements of microwave circuits. © 2022 IEEE.

关键词： Scattering parameters

来源：评论

学校读者我要写书评

暂无评论

Free-form acoustic topological waveguides enabled by topological lattice defects

引用

Physical Review B 2024年第18期109卷 L180101-L180101页

作者： Yin Wang Yong Ge Yu-Jing Lu Shuai Gu Yi-Jun Guan Qiao-Rui Si Shou-Qi Yuan Qiang Wang Hong-Xiang Sun Haoran Xue Research Center of Fluid Machinery Engineering and Technology School of Physics and Electrical Engineering School of Computer Science and Communication Engineering School of Physics Collaborative Innovation Center of Advanced Microstructures State Key Laboratory of Acoustics Department of Physics The

The emerging field of topological acoustics provides exciting possibilities for controlling sound propagation with extraordinary robustness. Conventional topological acoustic waveguides built from topological edge states, which arise solely from the nontrivial topology in the momentum space, usually have restricted shapes due to their crystalline structures. Here, we show that, using an acoustic topological system with both nontrivial topologies in the real and momentum spaces, free-form acoustic topological waveguides can be constructed. These topological waveguides support disclination-localized states, caused by the interplay between topological lattice defects and the valley-Hall topology. As demonstrated in our simulations and experiments, such disclination waveguides can take arbitrary shapes and form open arcs within the lattice, which are not possible for previous crystalline acoustic topological waveguides. Furthermore, by increasing the number of topological lattice defects, we can realize more than one topological waveguide in one lattice. They join at the topological lattice defect and form a topological waveguide network, enabling more complicated functionalities such as beam splitting. Our results point to a promising direction for free-form acoustic topological devices with the advantages of embedded forms, easy cascading, and high robustness.

关键词： Acoustics Defects Topological phase transition Topological phases of matter

来源：评论

学校读者我要写书评

暂无评论

New Antenna Array Beamforming Techniques Based on Hybrid Convolution/Genetic Algorithm for 5G and Beyond communications

引用

computer Modeling in engineering & Sciences 2024年第3期138卷 2749-2767页

作者： Shimaa M.Amer Ashraf A.M.Khalaf Amr H.Hussein Salman A.Alqahtani Mostafa H.Dahshan Hossam M.Kassem Electronics and Communications Engineering Department Higher Institute of Engineering and TechnologyKafr ElsheikhEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringMinia UniversityMiniaEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringTanta UniversityTantaEgypt Electronics and Electrical Communications Engineering Department Faculty of EngineeringHorus University EgyptNew DamiettaEgypt Department of Computer Engineering College of computer and Information SciencesKing Saud UniversityRiyadh11543Saudi Arabia School of Computing Mathematics and EngineeringCharles Sturt UniversityBathurstNSW2795Australia

Side lobe level reduction(SLL)of antenna arrays significantly enhances the signal-to-interference ratio and improves the quality of service(QOS)in recent and future wireless communication systems starting from 5G up to ***,it improves the array gain and directivity,increasing the detection range and angular resolution of radar *** study proposes two highly efficient SLL reduction *** techniques are based on the hybridization between either the single convolution or the double convolution algorithms and the genetic algorithm(GA)to develop the Conv/GA andDConv/GA,*** convolution process determines the element’s excitations while the GA optimizes the element *** M elements linear antenna array(LAA),the convolution of the excitation coefficients vector by itself provides a new vector of excitations of length N=(2M−1).This new vector is divided into three different sets of excitations including the odd excitations,even excitations,and middle excitations of lengths M,M−1,andM,*** the same element spacing as the original LAA is used,it is noticed that the odd and even excitations provide a much lower SLL than that of the LAA but with amuch wider half-power beamwidth(HPBW).While the middle excitations give the same HPBWas the original LAA with a relatively higher *** the increased HPBWof the odd and even excitations,the element spacing is optimized using the ***,the synthesized arrays have the same HPBW as the original LAA with a two-fold reduction in the ***,for extreme SLL reduction,the DConv/GA is *** this technique,the same procedure of the aforementioned Conv/GA technique is performed on the resultant even and odd excitation *** provides a relatively wider HPBWthan the original LAA with about quad-fold reduction in the SLL.

关键词： Array synthesis convolution process genetic algorithm(GA) half power beamwidth(HPBW) linear antenna array(LAA) side lobe level(SLL) quality of service(QOS)

来源：评论

学校读者我要写书评

暂无评论

A Fully LTPS-TFT-Based Bi-Directional Biomedical Interface Circuit for Large-Area Healthcare Applications

IEEE Journal on Flexible Electronics

引用

IEEE Journal on Flexible Electronics 2025年第12期3卷 526-532页

作者： Zhang, Hanbo Lou, Yuqing Zhang, Zhihang Li, Yongfu Rokhan, Fakhrul Wang, Guoxing Zhao, Jian Shanghai Jiao Tong University School of Electronic Information and Electrical Engineering Shanghai200240 China Universiti Putra Malaysia Faculty of Engineering Department of Computer and Communication System Engineering Selangor Serdang43400 Malaysia

This paper proposed a fully LTPS-TFT-based bi-directional biomedical pixel interface with integrated a high linearity stimulator and a high-performance bio-potential sensing front-end circuit to amplify and digitize biological signals for high robustness data transmission. All circuits are designed and manufactured under a 3-μm LTPS process. We demonstrated the experiment in saline using the stimulator circuit to simulate stimulation inside the organism, achieving stimulation with different average currents under different duty cycles. The proposed front-end circuit has a gain of 40 dB. The referred input voltage noise of the entire signal chain is 86.2 μV/√Hz, and the ENOB is 9.13 bits at an input of 0.5 mVPP. Simultaneously conducting statistical testing on 20 chips has achieved a 1.05 dB SNDR standard deviation. Finally, we use a function signal generator to simulate the input signals of ECoG, ECG, and EOG, then use front-end circuits to read and reconstruct them to demonstrate that the proposed pixel interface can correctly read common biomedical signals for healthcare applications. © 2022 IEEE.

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

Deep Learning-Assisted Parallel Interference Cancellation for Grant-Free NOMA in Machine-Type communication

引用

IEEE Internet of Things Journal 2025年第13期12卷 24041-24056页

作者： Oh, Yongjeong Jo, Jaehong Shim, Byonghyo Jeon, Yo-Seb POSTECH Department of Electrical Engineering Gyeongbuk Pohang37673 Korea Republic of Seoul National University Institute of New Media and Communications and the Department of Electrical and Computer Engineering Seoul08826 Korea Republic of

In this paper, we present a novel approach for joint activity detection (AD), channel estimation (CE), and data detection (DD) in uplink grant-free non-orthogonal multiple access (NOMA) systems. Our approach employs an iterative and parallel interference removal strategy inspired by parallel interference cancellation (PIC), enhanced with deep learning to jointly tackle the AD, CE, and DD problems. Based on this approach, we develop three PIC frameworks, each of which is designed for either coherent or non-coherence schemes. The first framework performs joint AD and CE using received pilot signals in the coherent scheme. Building upon this framework, the second framework utilizes both the received pilot and data signals for CE, further enhancing the performances of AD, CE, and DD in the coherent scheme. The third framework is designed to accommodate the non-coherent scheme involving a small number of data bits, which simultaneously performs AD and DD. Through joint loss functions and interference cancellation modules, our approach supports end-to-end training, contributing to enhanced performances of AD, CE, and DD for both coherent and non-coherent schemes. Simulation results demonstrate the superiority of our approach over traditional techniques, exhibiting enhanced performances of AD, CE, and DD while maintaining lower computational complexity. © 2014 IEEE.

关键词： Channel estimation

来源：评论

学校读者我要写书评

暂无评论

Cepstral and acoustic ternary pattern based hybrid feature extraction approach for end-to-end bangla speech recognition

引用

Journal of Ambient Intelligence and Humanized Computing 2023年第12期14卷 16903-16919页

作者： Dua, Mohit Akanksha Dua, Shelza Department of Computer Engineering National Institute of Technology Kurukshetra India Department of Electronics Communication and Engineering Punjab Engineering College Chandigarh Chandigarh India

In the last three decades, a lot of work has been done for building Automatic Speech Recognition (ASR) systems for well-established languages such as English, Chinese, etc. However, for implementing a Large Vocabulary Continuous Speech Recognition (LVCSR) system for low resource languages, the research work is also growing rapidly in corpus-focused areas. Hence, there is a requirement of benchmarking large corpus in case of low-resource language like Bangla such that prejudice results can be avoided and limitations can be handled. In the proposed work, an openly available large-scale Bangla speech corpus provided by Google has been used. The work in this paper proposes a combination of image inspired features with well explored cepstral features to build front end feature extraction phase. It uses integration of Convolutional Neural Network (CNN) and bi-directional Long-short Term Memory (bi-LSTM) with Connectionist Temporal Classification (CTC) loss function to implement backend acoustic model. The experiments employ static and dynamic features of Mel-frequency Cepstral Coefficients (MFCC), Constant Q Cepstral Coefficients (CQCC), and Gammatone Cepstral Coefficients (GTCC) techniques, one by one, with Acoustic Ternary Patterns (ATP) features. The proposed work investigates the effect of these various hybrid front-end approaches with CNN, bi-LSTM and integration of these two models. The novelty of this paper lies in the fact that fusion of ATP with cepstral features improves performance of the proposed low resource language ASR system, where the proposed combination of ATP-dynamic CQCC features with integrated backend acoustic model shows a relative improvement of 10–15% in Word Error Rate (WER) over all other experimented combinations. Further to exploit the noise robust nature of GTCC features, the ATP-dynamic GTCC features with integrated CNN-bi-LSTM back-end model are evaluated in noisy scenario, also. © 2023, The Author(s), under exclusive licence to Springer-V

关键词： Long short-term memory

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：