Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering最新文献_第10页

Design and Research of Underwater Communication Technology Based on LORA and PH Value and Salinity Sensor 基于LORA和PH值、盐度传感器的水下通信技术设计与研究

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501411

Qian Deng, ChenluLi

引用次数: 0

Application analysis of computer web data mining technology in E-commerce 计算机web数据挖掘技术在电子商务中的应用分析

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501626

Hu Ju, Hui Wang

引用次数: 1

Research on Thermal Impedance Modeling Method of IGBT Devices IGBT器件热阻抗建模方法研究

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501459

Shuai Sun, Ronggang Han, Zhongkang Lin

{"title":"Research on Thermal Impedance Modeling Method of IGBT Devices","authors":"Shuai Sun, Ronggang Han, Zhongkang Lin","doi":"10.1145/3501409.3501459","DOIUrl":"https://doi.org/10.1145/3501409.3501459","url":null,"abstract":"The thermal impedance model of IGBT device plays an important role in accurately analyzing the transient temperature change of IGBT device. Because it is relatively difficult to measure the internal temperature of packaged IGBT devices and it is difficult to obtain the chip junction temperature directly, it has certain advantages to study the temperature characteristics of IGBT by simulation. A method to establish the thermal resistance model of devices through the thermal impedance test data or datasheet is presented in this paper. Firstly, the medium thermal resistance of the device packaging material is calibrated based on the three-dimensional structure model and material parameters. Secondly, the contact thermal resistance of the device is calibrated combined with the steady-state thermal resistance test data. Finally, the transient thermal resistance model is calibrated by modifying the material parameters. In order to verify the accuracy of the model, thermal simulation analysis is carried out after each calibration to verify the effectiveness of the modeling method. The method described in this paper has good practical significance, and it can provide a useful reference for temperature field modeling technology and simulation technology of IGBT device.","PeriodicalId":191106,"journal":{"name":"Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116736029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deepbug: Bug Injection in Depth Deepbug:深度漏洞注入

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501538

Wanli Shi, Guomiao Zhou, Zehui Wu, Huiyong Zhang

引用次数: 0

Optimal control strategy of three level STATCOM in weak power grid 弱电网三电平STATCOM最优控制策略

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501669

Yang Zhang, Shaojia Feng, Xiaopin Yang, Wentao Xia, Tian Gao, Xiao Wang, Chan Li

引用次数: 0

An AHP-based Computer Evaluation Model for College Students English Pronunciation Quality 基于层次分析法的大学生英语语音质量计算机评价模型

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501692

Yan Long, Xinguang Li, Shuai Chen, Shenbin Zhang, Shanxian Ma, Ruisi Li

引用次数: 1

Fine-grained Object Recognition based on Multi-Scale Destruction and Construction Learning 基于多尺度破坏与构建学习的细粒度目标识别

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501625

Jun Luo, Yingzhe Jiang, Jinyi Qiu

{"title":"Fine-grained Object Recognition based on Multi-Scale Destruction and Construction Learning","authors":"Jun Luo, Yingzhe Jiang, Jinyi Qiu","doi":"10.1145/3501409.3501625","DOIUrl":"https://doi.org/10.1145/3501409.3501625","url":null,"abstract":"With the development of image processing technology, how to effectively use computer vision technology for image classification has become an important research branch in the field of computer vision. Traditional image classification is to identify coarse-grained categories, such as using computer vision technology to distinguish meta-categories such as \"dog\", \"grape\" and \"bird\". In many practical applications, images need to be classified at a fine-grained level, such as distinguishing which subcategory the image belongs to in the \"dog\" category: \"husky\", \"Samoyed\" and \"Alaska\". Due to the characteristics of large intra-class differences and small inter-class differences in fine-grained image classification, fine-grained image classification has become a challenging research. This paper proposes multi-scale input (MS_DCL) and multi-scale detail boosting (MSDB_DCL) destruction and construction learning methods, so that the network can learn object and component-level discriminative information for fine-grained image classification. The experimental results show that MS_DCL is finer than other existing ones. The granular image classification method has higher recognition accuracy, and the test accuracy rate can reach 87.4% on the CUB200-2011 dataset.","PeriodicalId":191106,"journal":{"name":"Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122030968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radar active jamming recognition based on time-frequency image classification 基于时频图像分类的雷达有源干扰识别

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3502153

Jingyi Wang, Wen Dong, Zhi-yong Song

引用次数: 0

Intelligent maneuver decision method of unmanned aerial vehicle 无人机智能机动决策方法

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501697

Huan Zhou, Xiaoyan Zhang, Chu Sun

{"title":"Intelligent maneuver decision method of unmanned aerial vehicle","authors":"Huan Zhou, Xiaoyan Zhang, Chu Sun","doi":"10.1145/3501409.3501697","DOIUrl":"https://doi.org/10.1145/3501409.3501697","url":null,"abstract":"As the key link of airspace task execution, UAV maneuver decision-making is the core intelligence embodiment of UAV, which can best represent the intelligence of UAV \"brain\". This paper summarizes the intelligent maneuver decision-making methods of UAV. Firstly, the problem and application background of UAV intelligent maneuver decision-making are introduced. Then, the research status of maneuver decision-making methods at home and abroad is analyzed. Intelligent maneuver decision-making is divided into two aspects: maneuver decision-making based on game theory and artificial intelligence. Game theory focuses on differential game, matrix game and influence diagram, Artificial intelligence focuses on expert system, intelligent optimization theory and neural network. Finally, a new air combat intelligent maneuver decision-making method based on bird foraging search algorithm is designed and verified by simulation experiments. The summary of UAV intelligent maneuver decision-making methods will contribute to the innovative research in this field, so as to promote the rapid development of maneuver decision-making technology.","PeriodicalId":191106,"journal":{"name":"Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128030265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Investigation of 4500 V FRD Implanted from Cathode with Different Depths Using 1-D Varied Doping 从不同深度阴极注入4500 V FRD的一维变化掺杂研究

Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering Pub Date : 2021-10-22 DOI: 10.1145/3501409.3501666

Chen Gao, Yuehua Wu, Yueyang Liu, Xintian Zhou, Kesheng Wang, Zheng Zhong

{"title":"Investigation of 4500 V FRD Implanted from Cathode with Different Depths Using 1-D Varied Doping","authors":"Chen Gao, Yuehua Wu, Yueyang Liu, Xintian Zhou, Kesheng Wang, Zheng Zhong","doi":"10.1145/3501409.3501666","DOIUrl":"https://doi.org/10.1145/3501409.3501666","url":null,"abstract":"A 4500 V fast recovery diode (FRD) implanted from cathode with different depths using 1-D varied doping is investigated with SRIM, MATLAB and Sentaurus TCAD in this paper. The defect concentrations of FRDs caused by He ions implantation[1-4] from cathode with 100μm and 120 μm injection depths are defined with SRIM. Especially, the minimum value of minority carriers life time of 100 μm injection depth is outside the space charge region, whereas that of 120 μm injection depth is inside the space charge region. Then the corresponding lifetime profiles of both types of FRDs are calculated with MATLAB for simulation in the Sentaurus TCAD. The electrical parameters of the FRD with 100 μm injection depth, such as forward voltage drop, breakdown voltage, and reverse recovery characteristics, exhibit superior improvements than that of conventional 120 μm one. This phenomenon demonstrates that controlling the minimum lifetime of a minority carriers outside the space charge region will make the device have better performance, which provides a guidance for future diode research.","PeriodicalId":191106,"journal":{"name":"Proceedings of the 2021 5th International Conference on Electronic Information Technology and Computer Engineering","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126687788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0