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检索条件"任意字段=International Conference on Signal Image Technology and Internet Based Systems"

共 7686 条记录，以下是71-80 订阅

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Electromagnetic signal Augmentation of Pantograph Arcs Using an Improved DCGAN 12

Electromagnetic Signal Augmentation of Pantograph Arcs Using...

引用

12th international conference on Information systems and Computing technology

作者： Zhang, Chunhui Liang, Yanyue Gao, Zhiwei Zhao, Li Shijiazhuang Inst Technol Sch Artificial Intelligence Shijiazhuang Hebei Peoples R China Shijiazhuang Inst Technol Sch Internet Applicat Technol Shijiazhuang Hebei Peoples R China Shijiazhuang Tiedao Univ Hebei Prov Key Lab Electromagnet Environm Effecs Shijiazhuang Hebei Peoples R China Shijiazhuang Inst Technol Shijiazhuang Hebei Peoples R China Shijiazhuang Tiedao Univ Sch Traff & Transportat Shijiazhuang Hebei Peoples R China

ISBN: (纸本)9798350379860;9798350379877

In response to the insufficient sample issue in the electromagnetic signal data of high-speed railway pantograph arcs, this study proposes an improved Deep Convolutional Generative Adversarial Network (DCGAN) to augment image datasets. By optimizing the network structure, the proposed method significantly improves the quality of generated images and introduces a lightweight design that reduces the computational demands of the model, making it more suitable for resource-constrained environments. After 5,000 iterations, the proposed method achieves a Frechet Inception Distance (FID) score of 36.33, compared to 45.54 for the original DCGAN and 50.21 for the WGAN. Moreover, the Inception Score (IS) of the proposed method is 1.91 +/- 0.11, outperforming the original DCGAN (1.81 +/- 0.23) and WGAN (1.77 +/- 0.04), further demonstrating its effectiveness. This method provides a new technical reference for research on electromagnetic signals in high-speed railways.

关键词： Electromagnetic signal DCGAN image augmentation lightweight network

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Acoustic User Authentication with Smartphones

Acoustic User Authentication with Smartphones

引用

IEEE international conference on Microwaves, Communications, Antennas, Biomedical Engineering and Electronic systems (COMCAS)

作者： Gevirtzer, Neta Ben Yosef, Ofir Eilam, Alon Technion Israel Inst Technol Andrew & Erna Viterbi Fac Elect & Comp Engn Signal & Image Proc Lab SIPL Haifa Israel

ISBN: (纸本)9798350348194;9798350348187

This paper describes a work on an acoustic user authentication system using smartphones. The system implements two-factor authentication for Windows workstations, where the authentication procedure, including locking and unlocking the workstation is transparent to the user. Since workstations and smartphones have built-in microphones and speakers, the system does not require additional hardware. The uniqueness of the solution is being based on acoustic signals. These signals are transmitted by the user's smartphone and received by the workstation microphone. The system is "pure play acoustic" since no wiring or radio transmission is used. The system configuration supports multiple users in the same area. Eavesdropping prevention is provided by sequentially generated random one-time keys. Acoustic communication can be applied either in the audible range or beyond the human hearing range depending on the sampling rate of the smartphone and the workstation.

关键词： Acoustic Android signal Processing Smartphone Two Factor Authentication Windows

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internet of Things Network Handover for Hydroponic Cultivation 11

Internet of Things Network Handover for Hydroponic Cultivati...

引用

11th international conference on Information technology, Computer and Electrical Engineering, ICITACEE 2024

作者： Nursyahid, Arif Helmy Setyawan, Thomas Agung Wahyuningsih, Sari Zakky, Naufal Faterna Nugroho, Ari Sriyanto Politeknik Negeri Semarang Department of Electrical Engineering Semarang Indonesia

ISBN: (纸本)9798350389289

internet of Things (IoT)-based hydroponic systems heavily relies on an internet connections for monitoring and control data transmission. Most hydroponic plant parameter monitoring and control systems use only one type of internet network source, so that if the internet network connection is unstable or disconnected data cannot be sent and accessed by farmers, causing interference in monitoring and control. To address this issue, this research developed a system that allows the device to automatically switch internet network sources. The method used to switch internet network sources is by using the TTGO T-Call ESP32 SIM800L microcontroller, which has two internet network modules, namely WiFi and GPRS. The parameter used to switch internet networks is the RSSI value. The test results show that the network switching system works well, as the network source can switch automatically to a stronger network when the signal weakens, ensuring a stable connection for data transmission. © 2024 IEEE.

关键词： Hydroponics internet of Things Network handover

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From Blackboards to Byteboards: Adapting to the Digital Age in Undergraduate Education on Campus 17

From Blackboards to Byteboards: Adapting to the Digital Age ...

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17th international conference on signal-image technology and internet-based systems, SITIS 2023

作者： Anannya, Tasmiah Tamzid Mahmud, Sharifa Rania Khan, Shahriar Rahman Zaman, Syed Rohit Jalal, Md. Shah Sharmin, Sadia Bangladesh University of Engineering and Technology Department of Computer Science and Engineering Bangladesh Military Institute of Science and Technology Department of Computer Science and Engineering Bangladesh American International University Department of Computer Science Bangladesh

ISBN: (纸本)9798350370911

In the current educational landscape, maintaining student engagement is a persistent challenge. This paper addresses this issue and investigates the potential of attention engineering as a solution to enhance engagement among undergraduate students. The main goal is to investigate the use of attention engineering techniques in undergraduate education to find effective methods and measure their impact on student engagement and academic performance. This research conducts a thorough literature review to assess the feasibility and effectiveness of these techniques in undergraduate classrooms, exploring the utilization of personalized content, interactive tools, and data-driven insights to maintain student attention. To improve attention and learning, several technology tools, and strategies such as online videos and tutorials, interactive multimedia content, gamification, flipped learning, social network tools, and Learning Management systems (LMS) are studied. This research addresses three key research questions, the impact of technology integration and interactive activities on student engagement and comprehension, effective technology-based tools for learning environments, and the influence of attention-centric teaching strategies on student learning outcomes. This research identifies focused technologies and approaches, as well as the country attaining and the most utilized technology from current works. Our research has also proposed some findings that offer valuable guidance for educators and institutions seeking to optimize teaching methods and ultimately improve the learning experience in undergraduate education. © 2023 IEEE.

关键词： Students

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Method for Selecting Defense Strategy of Moving Targets based on signal Game in Industrial internet 6

Method for Selecting Defense Strategy of Moving Targets Base...

引用

6th international conference on Computer Information Science and Application technology, CISAT 2023

作者： Yin, Mingxuan Gao, Chenguang Tianjin University of Technology School of Science and Engineering Tianjin China

ISBN: (纸本)9781510668546

In recent years, more and more computer technology has been applied in industrial internet, the vulnerability and security risk of industrial control systems are gradually increasing. network security issues have received much attention. To address the complex attacks and relatively poor deployable defense resources in the Industrial internet, this paper combines industrial internet attacks with signal game theory, proposes a moving target defense strategy selection method. The SDN-based industrial internet attack and defense model is established, the core decision module and the moving target defense module are introduced to select and implement the best defense strategy respectively, so that the industrial internet can achieve the best security defense strategy. The simulation results show that the moving target defense strategy selection method based on the signal game can effectively improve the defender's gain and achieve the best defense against network attacks under the industrial internet. © 2023 SPIE.

关键词： Game theory

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High Performance Secured image Transmission System Employing OFDM and Cryptography 8

High Performance Secured Image Transmission System Employing...

引用

8th international conference on Electronics, Communication and Aerospace technology, ICECA 2024

作者： Maheswari, S. Shifani, S. Agnes Simats Engineering Saveetha Institute of Medical and Technical Sciences India

ISBN: (纸本)9798350367904

In the modern world, it is vital to ensure that appropriate encryption and decryption are used while sending data across the internet to avoid unwanted access. based on the visual cryptography system, a novel cryptographic scheme is suggested to secure color images. As inputs are a color image that needs to be protected and a binary image that serves as the encryption and decryption key. Three monochromatic images based on the YCb Cr color space are created from a secret color image that needs to be shared. Following the conversion of these monochromatic images into binary images, the binary images are then encrypted using binary key images, also known as share-l, to produce binary cipher images. Three half-tones of the secret color image and the binary key image are encrypted independently using the Exclusive OR technique. Share-2 is obtained by combining these binary pictures. After the shares have been encrypted, the binary images that have been retrieved are converted to inverted halftones and merged to create a hidden color image. This technique works better over a diffused channel for transmitting natural images. The OFDM technology is the foundation of this multi modal transmission. In wireless communications, OFDM as a multi-carrier transmission mechanism plays vital role. Due to its many benefits, including its fast data rate transmission, excellent reception quality, and capacity to counteract Inter-Symbol Interference (ISI), particularly in fading channels, the adoption of OFDM has grown significantly.A novel approach is put forward for progressive image transmission via Low Density Parity Check Coding (LDPC) on coded Orthogonal Frequency Division Multiplexing (OFDM) systems. In this technique, the Peak to Average Power Ratio (PAPR) of the OFDM signal is reduced and the performance of the OFDM systems is improved through the utilization of trigonometric transformations. It enhances progressive picture transmission's ability for error resilience and transm

关键词： Binary images

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Performance evaluation of a many/multi-core implementation for signal filtering problem 16

Performance evaluation of a many/multi-core implementation f...

引用

16th international conference on signal-image technology and internet-based systems (SITIS)

作者： D'Alo, Vincenzo De Luca, Pasquale Parthenope Univ Naples Sci & Technol Dept Naples Italy

ISBN: (纸本)9781665464956

signal filtering plays an important role in pre-processing procedures used in several application fields. In last years, several methods have been proposed by achieving good results. When large data are given in input, performance are likely to get worse. based on the Savitzky-Golay filter, we have developed, in this paper, a parallel implementation with engaging a multi-core architecture. Experiments and tests highlight the gain of performance in time terms.

关键词： parallel algorithm Savitzky-Golay signal filtering multi-core architecture performance analysis

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Restoration of Distorted Laser-Spot image based on Generative Adversarial Networks 13

Restoration of Distorted Laser-Spot Image based on Generativ...

引用

13th IEEE international conference on Communications, Circuits and systems (ICCCAS)

作者： Diao, Shuiqiu Li, Jianjun Zhang, Rui Wen, Feng Wu, Baojian Qiu, Kun Univ Elect Sci & Technol China Sch Informat & Commun Engn Key Lab Opt Fiber Sensing & Commun Minist Educ Chengdu Peoples R China

ISBN: (纸本)9798350386288;9798350386271

We introduce the generative adversarial networks (GANs) into the application of the free-space laser communication, performing the laser-spot image restoration with the computer-vision method. After the training of our model is completed, the average Pearson correlation coefficient, average peak signal-to-noise ratio and mean-square-error of the generated restored laser spot image reach 0.964, 27.713dB and 0.003, respectively. According to the numerical results, the GAN method could effectively resist the interference of atmospheric turbulence, and accurately restore the amplitude distribution of the laser captured from the free-space channel.

关键词： laser spot image restoration deep learning

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Research on deep learning-based channel estimation algorithm in 5G high-speed mobile scenario

Research on deep learning-based channel estimation algorithm...

引用

2024 international conference on signal Processing and Communication Security, ICSPCS 2024

作者： Teng, Wang Jie, Chen Honghe Vocational and Technical College Mengzi Yunnan661199 China

ISBN: (纸本)9781510681699

In the high-speed mobile environment supported by the fifth-generation mobile communication technology, higher vehicle speeds, more frequent switching and wider bandwidth make the design of high-speed mobile communication systems more challenging. High-quality wireless communication technology is needed to support future high-speed mobile scenarios to achieve low-latency and highly reliable communication, among which anti-Doppler frequency shift technology is the key. based on this, this paper proposes a Rayleigh channel estimation algorithm based on image super-resolution (SR) network. This method models the channel response matrix obtained by the LS method as a two-dimensional image, uses the SR network and image restoration (image restoration, IR) technology for learning optimization, and obtains the channel response at the unknown symbol. The simulation results show that the proposed algorithm is significantly better than the traditional Linear Minimum Mean Square Error (LMMSE) method. Compared with other SR-based channel estimation algorithms under low signal to Noise Ratio (SNR), it has a 3dB gain and a 5dB gain under high SNR. © 2024 SPIE.

关键词： image reconstruction

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Application of internet of Thing (IoT) for Precision Farming 16

Application of Internet of Thing (IoT) for Precision Farming

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16th international conference on signal-image technology and internet-based systems (SITIS)

作者： Songruk, Apidat Arunrungrusmi, Somchai Tunlasakun, Khanchai Suwannakhum, Sirimonpak Mungkungline, Narong Poonthong, Wittawat Yuji, Toshifumi King Mongkuts Univ Technol Thonburi Dept Elect technol Educ Bangkok Thailand King Mongkuts Univ Technol Thonburi Fac Ind Educ & Technol Bangkok Thailand

ISBN: (纸本)9781665464956

With the increasing popularity of the internet of Things (IOT) and devices getting smarter, this research has presented an idea to reform the weather information for precision farming. In this study, the information of weather forecast was prepared for air quality control systems using the sensor of network systems to increase the quality of organic vegetable in Thailand under the condition of Thailand weather The prototype model was described by the devices of embedded systems, which is gotten from the temperature and humidity sensor. Therefore, if there is any data from the input sensor, the users are allowed to access and granted to use this system, then, the log data are transmitted by the internet to the designation website by using a Wi-Fi module (ESP8266). As a result, it can be used the machine learning algorithms for implementing of monitor controller, which is applied for analyzing and collecting data to air quality control in green house

关键词： internet of Thing Arduino smart agriculture

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