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2018 International Computers, Signals and Systems Conference (ICOMSSC)最新文献

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Application Strategy of Beidou and GPS Signals in Regional High-Precision Time Synchronization 北斗与GPS信号在区域高精度时间同步中的应用策略
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941744
Liu Wenxue, L. Dandan, Luo Ruidan, Yuan Hong
{"title":"Application Strategy of Beidou and GPS Signals in Regional High-Precision Time Synchronization","authors":"Liu Wenxue, L. Dandan, Luo Ruidan, Yuan Hong","doi":"10.1109/icomssc45026.2018.8941744","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941744","url":null,"abstract":"For the application strategy of Beidou and GPS signals in regional high-precision time synchronization, this paper analyzes the characteristics of Beidou and GPS constellation and receiver observations, and proposes a regional high-precision time synchronization strategy for the differentiation of Beidou and GPS satellites. The actual test results of the receiver under the corresponding strategy are analyzed. The results show that Beidou GEO satellite can achieve high precision and better stability region high precision time synchronization in the receiver fixed mode.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117066201","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
Study on Text Classification of MOOC Course Comments Based on Chinese Character-level Convolutional Networks 基于汉字级卷积网络的MOOC课程评论文本分类研究
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941796
Ye Ziming, Cheng Yan, Zhang Qiang
{"title":"Study on Text Classification of MOOC Course Comments Based on Chinese Character-level Convolutional Networks","authors":"Ye Ziming, Cheng Yan, Zhang Qiang","doi":"10.1109/icomssc45026.2018.8941796","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941796","url":null,"abstract":"With the rise of the educational big data and the development of MOOCs, a wide range of comments have come up. Now most of the existing MOOCs text classification models are for small scale comments, and fail to extract high-level abstract information among characters. In this paper, crawler technology is used to crawl the comment data in MOOCs forums comprehensively, and a character table containing 5500 comment data is constructed then. In terms of word embedding operation, a text classification model of MOOCs comment data based on Chinese character-level convolutional neural network is proposed to avoid the pre-training process of word vector. The experiments show that our model could improve the classification accuracy comparing with traditional methods.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"318 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113956054","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
Analysis on Wideband Transmission Characteristics of Optical Multi-beam Forming Network 光多波束形成网络的宽带传输特性分析
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941895
Yu Zhou, D. Fang, J. Geng, Yuanqing Jiang
{"title":"Analysis on Wideband Transmission Characteristics of Optical Multi-beam Forming Network","authors":"Yu Zhou, D. Fang, J. Geng, Yuanqing Jiang","doi":"10.1109/icomssc45026.2018.8941895","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941895","url":null,"abstract":"In the practical application of the 5G communication, the signal transmitting and receiving modules are respectively placed on different platforms, and their respective beam-forming networks may all use phase delay beam-forming network, hybrid phase/time delay beam- forming network and complete time delay beam-forming network. The three schemes of the delay beam-forming network are simulated and analyzed. The analysis results show that the effect of the optical TTD beam-forming network on the transmitting end and the receiving end is minimal.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121070890","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
Research on Prediction and Control of Heavy Commercial Vehicle Interior High Frequency Noise Based on SEA 基于SEA的重型商用车内部高频噪声预测与控制研究
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8942017
Rongjiang Tang, Li Huang, Zhengyang Tong, Shenfang Li
{"title":"Research on Prediction and Control of Heavy Commercial Vehicle Interior High Frequency Noise Based on SEA","authors":"Rongjiang Tang, Li Huang, Zhengyang Tong, Shenfang Li","doi":"10.1109/icomssc45026.2018.8942017","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8942017","url":null,"abstract":"A statistical energy analysis model for predicting the noise of commercial vehicles was established in this paper. The modal density and loss factor of each subsystem were obtained by combining the calculation and test. The vibration excitation and sound excitation under various working conditions were measured. Then these basic parameters and excitation were put into the model for simulation and calculation, and the sound pressure level of driver's head sound cavity was obtained. By comparing the experimental results, the maximum error does not exceed 2dB (A), which indicates the accuracy of the SEA model for predicting noise. The energy transfer path analysis was carried out to find out the subsystems with the largest contribution of noise. Two kinds of optimized schemes were proposed and the results showed that the interior noise sound pressure can decrease by about 1.5dB (A).","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123916590","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
An Internet Application-Driven Cache Placement Algorithm for Software-Defined Information-Centric Networking 面向软件定义信息中心网络的互联网应用驱动的缓存放置算法
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941620
Jing Liu, Ziwei Hu, Jinghong Guo, Hanyong Hao
{"title":"An Internet Application-Driven Cache Placement Algorithm for Software-Defined Information-Centric Networking","authors":"Jing Liu, Ziwei Hu, Jinghong Guo, Hanyong Hao","doi":"10.1109/icomssc45026.2018.8941620","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941620","url":null,"abstract":"Currently, video has becoming one of the most traffic-intense Internet applications. However, it also causes Internet transmission problems, such as congestion, high delay and bad user experience. Therefore, it is necessary to design a cache mechanism for some popular videos in advance. To address this problem, this paper designs an Internet application-driven algorithm for centralized cache placement of popular videos in software-defined information-centric networking. First, it designs a centralized control architecture and the cache controller and node working mechanism, and then this problem is formulated as an integer programming. Finally, it proposes a greedy algorithm based on a 0-1 multiple knapsack problem to solve the integer programming and sets a performance indicator to evaluate this algorithm. The result shows that the algorithm can achieve desirable performance.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125409011","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
Typical Machining Process Mining of Servo Valve Parts Based on Self-adaptive Affinity Propagation Clustering 基于自适应亲和传播聚类的伺服阀件典型加工工艺挖掘
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941936
Wuyang Fan, Yongjian Zhang, Lin Wang, Shi-sheng Zhong
{"title":"Typical Machining Process Mining of Servo Valve Parts Based on Self-adaptive Affinity Propagation Clustering","authors":"Wuyang Fan, Yongjian Zhang, Lin Wang, Shi-sheng Zhong","doi":"10.1109/icomssc45026.2018.8941936","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941936","url":null,"abstract":"The effective reuse of the typical process is a key factor in the efficiency of process planning. Therefore, the typical process mining was studied. First, the current situation and problems in process planning were analyzed. Modeled by attributed directed graph, the process was represented in mathematical expression systematically. And to measure the similarity between processes, the similarity between processes cells and the similarity between process routes were defined. Self-adaptive affinity propagation was used in the clustering of typical process and effective clustering results were evaluated by the Silhouette index. Finally, the mining method was used in discovering typical process from machining process of 3 sets of servo valve sleeves in 5 different models and proven to be effective.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125508697","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: 2
Finite Element Analysis of Self-lubricating Joint Bearing Liner Wear 自润滑关节轴承衬套磨损有限元分析
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941656
Linhui Luo, Xiumei Wang
{"title":"Finite Element Analysis of Self-lubricating Joint Bearing Liner Wear","authors":"Linhui Luo, Xiumei Wang","doi":"10.1109/icomssc45026.2018.8941656","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941656","url":null,"abstract":"The finite element model of sliding wear is established by applying finite element theory according to Archard wear model. The general program is developed by ANSYS Parametric Design Language (APDL). The wear analysis of self-lubricating joint bearing liner is carried out. The simulation and the experimental results are very consistent with the relative error being 6.38%. In the simulation, the concept of the wear step length is introduced, and the method of moving boundary key point of the liner region in the model is used to describe the material removal process. The parametric modeling is used to refine the liner layer and then divide the mesh, and then the internal meshes distortion caused by boundary point change is solved. Meanwhile, the appropriate wear step length is used to improve the computational efficiency and accuracy. The results show that the finite element method can predict the sliding wear from the viewpoint, which provides a practical tool for practical engineering wear design.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126259978","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
Fragments Splicing Method Based on Surface Texture and Fracture Boundary 基于表面纹理和断裂边界的碎片拼接方法
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941993
Piao Wang, Guohua Geng, Yi Wang, Jiabei Hu, Yuhe Zhang
{"title":"Fragments Splicing Method Based on Surface Texture and Fracture Boundary","authors":"Piao Wang, Guohua Geng, Yi Wang, Jiabei Hu, Yuhe Zhang","doi":"10.1109/icomssc45026.2018.8941993","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941993","url":null,"abstract":"In the process of natural environment and manmade excavation, the earthen artifacts are vulnerable to be damaged, and it is difficult to guarantee the integrity of the fractured site. Therefore, the traditional geometric-driven splicing method is restricted. In this paper, aiming at the ceramic fragments with missing geometric information, a splicing method combined with surface texture and fracture contour is proposed. First, the debris texture feature line is extracted by using Splatting Lines method, that is, dense points of the 3D model are sampled, two depth images are rendered by different parameters of splatting, and the line image is generated by the difference between the two images. Secondly, this paper calculates the texture shape edge information, constructs the constraint conditions of the damaged texture and completes the preliminary matching. For the discrete point sets on the fracture boundary contour, this paper uses the genetic algorithm to calculate matching point pairs to obtain the final result. The experimental results show that the proposed algorithm can achieve the splicing of the broken cultural relics, and the matching value is stable at 0.53 or above, which has certain advantages for the significant texture features and severely damaged fragments.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128520530","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
Fast Acquisition Algorithm for GPS L5 Signal Based on Folding 基于折叠的GPS L5信号快速采集算法
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941627
Y. Zhang, Q. Li
{"title":"Fast Acquisition Algorithm for GPS L5 Signal Based on Folding","authors":"Y. Zhang, Q. Li","doi":"10.1109/icomssc45026.2018.8941627","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941627","url":null,"abstract":"L5 signal is the third civilian signal introduced in the process of GPS modernization. Compared with the traditional C/A code signal, message format, PRN code transmission rate and length of L5 signal have been improved. In particular, the pilot component without data transmission is added, making the navigation signal be more easily collected by the receiver. According to the structural characteristics of L5 signal, this paper proposes a fast acquisition method based on the folded single pilot component, which can effectively overcome the Cross Ambiguity Function (CAF) energy loss caused by the polarity reversal of NH codes.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126534596","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
Study on System Recognition Method for Newton-Raphson Iterations Newton-Raphson迭代系统识别方法研究
2018 International Computers, Signals and Systems Conference (ICOMSSC) Pub Date : 2018-09-01 DOI: 10.1109/icomssc45026.2018.8941745
Wanjun Zhang, Feng Zhang, Jingxuan Zhang, Jingyi Zhang, Jingyan Zhang
{"title":"Study on System Recognition Method for Newton-Raphson Iterations","authors":"Wanjun Zhang, Feng Zhang, Jingxuan Zhang, Jingyi Zhang, Jingyan Zhang","doi":"10.1109/icomssc45026.2018.8941745","DOIUrl":"https://doi.org/10.1109/icomssc45026.2018.8941745","url":null,"abstract":"System identification method and hybrid modeling method, using a mathematical model established by the same theoretical method, due to the uncertainty of the structure, parameters, and environment of the controlled object, are affected by factors such as the specific environment. In different environments, the specific structural parameters of the mathematical model are not exactly the same. Therefore, the system identification method has more practical application value than the theoretical modeling method. In this paper, a Newton-Raphson evaluation system identification method is proposed. The shortcomings of the previous identification system can be satisfactorily identified, and simulation experiments and physical experiments can be carried out. The feasibility and effectiveness of the proposed identification and modeling method are verified.","PeriodicalId":332213,"journal":{"name":"2018 International Computers, Signals and Systems Conference (ICOMSSC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114939085","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: 20
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