检索结果-内蒙古大学图书馆

14th International Conference on Advances in Computing, Control, and Telecommunication Technologies, ACT 2023

作者： Jyothi, M. Nandini, B.M. Computer Network Engineering The National Institute of Engineering Mysuru India Department of Information Science & Engineering The National Institute of Engineering Mysuru India

The images which are taken in foggy weather/bad weather are not expressed clearly therefore they are not very comprehensible. The images that are taken in that environment will be reduced in quality to a great degree, the reason is that because of the scattering of light in the atmosphere will reduce the clarity and visibility of a single image. Because of fog, the images are in low contrast whereas in case the haze in the atmosphere will affect the clearness and precision of the image. The pictures taken in this condition will not only affect the visibility but also complicate the post-processing of the image required for the implementation of numerous computer vision algorithms. Hence it is important to eliminate fog from the image So, firstly density of fog is estimated and based on that, image defogging can be done. © Grenze Scientific Society, 2023.

关键词： Image reconstruction

来源：评论

学校读者我要写书评

暂无评论

Spatial-Temporal Mapping CFAR Detection Method for Radar Target Detection 24

Spatial-Temporal Mapping CFAR Detection Method for Radar Tar...

引用

24th IEEE International Conference on Communication Technology, ICCT 2024

作者： Yang, Qi Liu, Kai Zhang, Zhibo Chen, Leyan Gao, Qiang Wen, Zhaobai Beihang University School of Electronics and Information Engineering Beijing China Wuhan Maritime Communication Research Institute Information and Network Department Wuhan China

ISBN: (纸本)9798350363760

In order to make full use of spatial-temporal information for target detection, a spatial-temporal mapping constant false alarm rate (STM-CFAR) detection method is proposed in this paper. First, based on the clutter map (CM) from radar echo frames, the clutter power of each cell under test (CUT) is estimated in temporal domain. Second, we derive the relationship of the threshold factor and the probability of false alarm (PFA) to obtain the optimal temporal detection threshold (TDT) table. In addition, we establish the spatial detection threshold (SDT) table obtained from adaptively adjusting CFAR methods to reflect the spatial statistical characteristic of clutter in spatial domain. According to the clutter condition, the values of TDT and SDT are weighted to get the final detection threshold of STM-CFAR, which can achieve better detection performance. Simulation results show that the proposed method outperforms other traditional CFAR detection methods in terms of detection probability under different clutter backgrounds. © 2024 IEEE.

关键词： Radar target recognition

来源：评论

学校读者我要写书评

暂无评论

Back to Basics: Non-Mesh Multi-Hop Wi-Fi Backhaul on Smart Lamppost network

Back to Basics: Non-Mesh Multi-Hop Wi-Fi Backhaul on Smart L...

引用

2022 IEEE Region 10 International Conference, TENCON 2022

作者： Yin, Hoover H.F. Lee, Kin Hong Chau, Oscar M.H. Chan, Raymond K. Tse, Connie K.Y. Department of Information Engineering The Chinese University of Hong Kong Hong Kong N-hop Technologies Limited The Institute of Network Coding The Chinese University of Hong Kong Hong Kong Independent Scholars Institute of Network Coding The Chinese University of Hong Kong Hong Kong

Smart lamppost network is naturally formed by long segments of line networks where mesh is an overkill. We study the rapid deployment of cost-efficient non-mesh Wi-Fi backhaul with failover/failback mechanism. © ... 详细信息

ISBN: (数字)9781665450959

ISBN: (纸本)9781665450959

关键词： Wi-Fi

来源：评论

学校读者我要写书评

暂无评论

A KUSHO WORDS RECOGNITION METHOD FOR CONTACTLESS information MANAGEMENT IN RESTAURANT KITCHENS 51

A KUSHO WORDS RECOGNITION METHOD FOR CONTACTLESS INFORMATION...

引用

51st International Conference on Computers and Industrial engineering, CIE 2024

作者： Usuki, Risa Usuki, Jun Department of Computer Science and Engineering Waseda University Tokyo Japan Department of Information Network and Communication Kanagawa Institute of Technology Kanagawa Japan

Advances in IT technology have led to research into KUSHO recognition, which enables the non-contact operation of devices without the use of devices such as keyboards or controllers. This is a technology that transmits information about the characters written in space towards the camera (hereafter this action is referred to as KUSHO) to the devices. KUSHO has advantages, such as the ability to transfer information without training. In restaurant kitchens, workers transmit various types of information using devices with input functions, however, hygiene considerations are essential when operating equipment in kitchens. In addition, in noisy kitchens, it is also difficult to use voice input, and there are limits to paper-based information transmission. Under these circumstances, in this research, the introduction of KUSHO input technology for non-contact information transfer in restaurant kitchens is being investigated. Therefore, the content handled by kitchen workers for information management is first analyzed and shown to be representable in three input formats. Subsequently, an additional hand signal to be used while doing KUSHO and an improved algorithm for determining them are proposed. Finally, an algorithm for KUSHO recognition of character strings using standard input time is proposed. Experiments on the implementation of these proposals have shown the effectiveness of the new decision algorithm for the addition of a hand signal, with a 100% correct rate. For strings of two or more uppercase alphabetic characters, the recognition rate was 92.5% for all eight types of "KUSHO operation" and the recognition rate was 70.0% for ten randomly selected from 100 different "product names." For "quantity," it was difficult to recognize multiple digits, however 100% recognition rate was achieved by dividing the digits into each single digit 0~9 using an improved hand signal algorithm. Thus, algorithm some problems remain, the effectiveness of all the proposed methods ha

关键词： information management

来源：评论

学校读者我要写书评

暂无评论

Method of Applying Apertures for Asymmetric coding Systems 17

Method of Applying Apertures for Asymmetric Coding Systems

引用

17th IEEE International Conference on Advanced Trends in Radioelectronics, Telecommunications and Computer engineering, TCSET 2024

作者： Barannik, Vladimir Sidchenko, Yevhenii Barannik, Valeriy Grygorian, Mykola Babenko, Mykhailo Prokopenko, Rodion V. N. Karazin Kharkiv National University Technologies and Mathematical Modeling Department of Information Kharkiv Ukraine Kharkov National University of Radio Electronics Department of Information and Network Engineering Kharkiv Ukraine Cherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defence of Ukraine Department of Information and Network Engineering Cherkasy Ukraine Dniprovsk State Technical University Department of Information and Network Engineering Kamyanske Ukraine

ISBN: (纸本)9798331520564

In the field of information technology and data storage, efficient data compression systems are crucial for optimizing resource utilization and enhancing data transmission speed. Traditional symmetric numeral systems, such as Huffman coding and arithmetic coding, have long been the mainstay in this area due to their reliability and straightforward implementation. However, these systems often face limitations in adaptability and compression efficiency, especially with uneven data distribution. The discovery of asymmetric numeral systems, which combine the encoding speed of Huffman coding with the efficiency approaching arithmetic coding, has provided a new impetus for the development of image compression methods. Yet, for optimal and optimized encoding that possesses sufficient noise resilience and efficiency, proper image segmentation is necessary. The aim of this study is to evaluate the effectiveness of segmenting images into apertures of constant length followed by encoding using asymmetric numeral systems in comparison to the conventional uniform 8×8 segmentation. © 2024 IEEE.

关键词： Encoding (symbols)

来源：评论

学校读者我要写书评

暂无评论

An overview on IRS-enabled sensing and communications for 6G: architectures, fundamental limits, and joint beamforming designs

引用

Science China(information Sciences) 2025年第5期68卷 170-193页

作者： Xianxin SONG Yuan FANG Feng WANG Zixiang REN Xianghao YU Ye ZHANG Fan LIU Jie XU Derrick Wing Kwan NG Rui ZHANG Shuguang CUI School of Science and Engineering (SSE) Shenzhen Future Network of Intelligence Institute (FNii-Shenzhen)and Guangdong Provincial Key Laboratory of Future Networks of Intelligence The Chinese University of Hong Kong Department of Electrical Engineering City University of Hong Kong School of Information Engineering Guangdong University of Technology Key Laboratory of Wireless-Optical Communications Chinese Academy of Sciences School of Information Science and Technology University of Science and Technology of China Computer School Beijing Information Science and Technology University National Mobile Communications Research Laboratory School of Information Science and Engineering Southeast University School of Electrical Engineering and Telecommunications University of New South Wales School of Science and Engineering Shenzhen Research Institute of Big Data The Chinese University of Hong Kong Department of Electrical and Computer Engineering National University of Singapore

This study presents an overview on intelligent reflecting surface(IRS)-enabled sensing and communication for the forthcoming sixth-generation(6G) wireless networks, in which IRSs are strategically deployed to proactively reconfigure wireless environments to improve both sensing and communication(S&C) performance. First, we exploit a single IRS to enable wireless sensing in the base station's(BS's) non-line-of-sight(NLoS) area. In particular, we present three IRS-enabled NLoS target sensing architectures with fully-passive, semi-passive, and active IRSs, respectively. We compare their pros and cons by analyzing the fundamental sensing performance limits for target detection and parameter estimation. Next, we consider a single IRS to facilitate integrated sensing and communication(ISAC), in which the transmit signals at the BS are used for achieving both S&C functionalities, aided by the IRS through reflective beamforming. We present joint transmit signal and receiver processing designs for realizing efficient ISAC, and jointly optimize the transmit beamforming at the BS and reflective beamforming at the IRS to balance the fundamental performance tradeoff between S&C. Furthermore, we discuss multi-IRS networked ISAC, by particularly focusing on multi-IRS-enabled multi-link ISAC, multi-region ISAC, and ISAC signal routing, respectively. Finally, we highlight various promising research topics in this area to motivate future work.

关键词： integrated sensing and communication (ISAC) intelligent reflecting surface (IRS) non-line-of-sight (NLoS) sensing sensing and communication tradeoff

来源：评论

学校读者我要写书评

暂无评论

Dual-Mode Resonant Sectorial Monopole Antenna with Stable Backfire Gain

引用

Chinese Journal of Electronics 2024年第6期33卷 1478-1486页

作者： Feiyan JI Heng ZHANG Xiuqiong XING Wenjun LU Lei ZHU Jiangsu Key Laboratory of Wireless Communications Nanjing University of Posts and Telecommunications Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Department of Electrical and Computer Engineering Faculty of Science and Technology University of Macau

A novel design approach to wideband, dual-mode resonant monopole antenna with stable, enhanced backfire gain is advanced. The sectorial monopole evolves from a linear, 0.75-wavelength electric prototype monopole under wideband dual-mode resonant operation. As theoretically predicted by the two resonant modes TE3/5,1and TE9/5,1within a 150° radiator, the operation principle is revealed at first. As have been numerically demonstrated and experimentally validated at 2.4-GHz band, the designed antenna exhibits a wide impedance bandwidth over 90.1%（i.e., 2.06–5.44 GHz）, in which the stable gain bandwidth in the backfire,-x-direction（θ = 90°, φ = 180°） with peak value of 3.2 dBi and fluctuation less than 3 dB is up to 45.3%（i.e., 3.74–5.44 GHz）. It is concluded that the stable wideband backfire gain frequency response should be owing to the high-order resonant mode in the unique sectorial monopole antennas.

关键词： Fluctuations Azimuth Prototypes Metals Resonance Frequency measurement Broadband antennas Impedance Gain Wideband

来源：评论

学校读者我要写书评

暂无评论

Wireless Positioning:Technologies,Applications,Challenges,and Future Development Trends

引用

Computer Modeling in engineering & Sciences 2024年第5期139卷 1135-1166页

作者： Xingwang Li Hua Pang Geng Li Junjie Jiang Hui Zhang Changfei Gu Dong Yuan School of Physics and Electronic Information Engineering University of Henan PolytechnicJiaozuo454000China Jiaozuo Key Laboratory of Crow-Sensing Network Jiaozuo454000China Institute of Mining Engineering Guizhou Institute of TechnologyGuiyang550003China Coal Supervision Department Panzhou Energy BureauPanzhou553599China

The development of the fifth-generation(5G)mobile communication systems has entered the commercialization stage.5G has a high data rate,low latency,and high reliability that can meet the basic demands of most industries and daily life,such as the Internet of Things(IoT),intelligent transportation systems,positioning,and *** continuous progress and development of society have aroused wide *** accuracy is the core demand for the applications,especially in complex environments such as airports,warehouses,supermarkets,and ***,many factors also affect the accuracy of positioning in those environments,for example,multipath effects,non-line-of-sight,and clock synchronization *** paper provides a comprehensive review of the existing works about positioning for the future wireless network and discusses its key techniques and algorithms,as well as the current development and future *** first outline the current traditional positioning technologies and algorithms,which are discussed and analyzed with the relevant *** addition,we also discuss application scenarios for wireless *** comparing different positioning systems,the challenges and future development directions of existing wireless positioning systems are prospected.

关键词： 5G wireless positioning reconfigurable intelligent surface Internet of Vehicles

来源：评论

学校读者我要写书评

暂无评论

AoI-Delay Tradeoff in Mobile Edge Caching: A Lyapunov Optimization-Based Method

引用

IEEE Internet of Things Journal 2025年第11期12卷 16266-16281页

作者： Li, Ran Huang, Chuan Qin, Xiaoqi Fu, Zhanhong Yang, Lei Yang, Dong The Future Network of Intelligence Institute The Chinese University of HongKong Shenzhen518172 China The Department of Information Engineering The Chinese University of Hong Kong Hong Kong The School of Science and Engineering The Future Network of Intelligence Institute The Chinese University of HongKong Shenzhen518172 China The State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing100876 China SF Technology Shenzhen518052 China The Department of Computer Science and Engineering University of Nevada RenoNV89557 United States The School of Electronic and Information Engineering Beijing Jiaotong University Beijing100044 China

Mobile edge caching (MEC) is a promising technique to improve the quality of service (QoS) for mobile users (MU) by bringing data to the network edge. However, optimizing the crucial QoS aspects of message freshness and service promptness, measured by age of information (AoI) and service delay, respectively, entails a tradeoff due to their competition for shared edge resources. This paper investigates this tradeoff by formulating their weighted sum minimization as a sequential decision-making problem, incorporating high-dimensional, discrete-valued, and linearly constrained design variables. First, to assess the feasibility of the considered problem, we characterize the corresponding achievable region by deriving its superset with the rate stability theorem and its subset with a novel stochastic policy, and develop a sufficient condition for the existence of solutions. Next, to efficiently solve this problem, we propose a mixed-order drift-plus-penalty algorithm by jointly considering the linear and quadratic Lyapunov drifts and then optimizing them with dynamic programming (DP). Finally, by leveraging the Lyapunov optimization technique, we demonstrate that the proposed algorithm achieves an O(1/V) versus O(V) tradeoff for the average AoI and average service delay. © 2014 IEEE.

关键词： Stochastic systems

来源：评论

学校读者我要写书评

暂无评论

A deep neural network aided channel estimation for maritime wireless communications 5

A deep neural network aided channel estimation for maritime ...

引用

5th International Conference on Geology, Mapping, and Remote Sensing, ICGMRS 2024

作者： Yuan, Guocai Jiang, Shiyu Jing, Min Zhang, Hongming Information Network Department Wuhan Maritime Communication Research Institute Wuhan China Information Platform Department Wuhan Maritime Communication Research Institute Wuhan China School of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781510681712

In 6G, maritime wireless communications will play an important role for providing high data-rate services ubiquitously. However, due to the complex and rapidly changing marine environment, an accurate channel estimation is usually hard to achieve for maritime wireless communication systems. In this paper, a deep neural network (DNN) aided receiver design is proposed for the orthogonal frequency division multiplexing (OFDM) based maritime wireless communications. Due to the complicated and rapidly changing marine environment, the channel conditions are hard to be accurately estimated. Hence, the attainable performance of the OFDM based maritime wireless systems may be severely degraded. In order to tackle this issue, in this paper, a DNN aided marine channel estimation scheme is conceived for the OFDM based maritime wireless system, where SGD, Adam, SignSGD optimizers are considered. The attainable system performance is validated by simulations, showing that the proposed DNN-aided channel estimation scheme is capable of attaining a competitive system performance compared to the existing schemes. Furthermore, the proposed DNN-aided channel estimation scheme is able to achieve a better system performance at the low signal to noise ratio (SNR) regime in comparison to the existing channel estimation schemes. © 2024 SPIE.

关键词： Deep neural networks

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：