2009 First International Conference on Advances in Satellite and Space Communications最新文献

Indoor/Outdoor Seamless Positioning Technologies Integrated on Smart Phone 集成在智能手机上的室内外无缝定位技术

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.11

L. Pei, Ruizhi Chen, Yuewei Chen, H. Leppäkoski, Arto Perttula

引用次数: 52

New Approaches in Image Compression and Noise Removal 图像压缩和去噪的新方法

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.33

L. State, C. Cocianu, C. Sararu, P. Vlamos

{"title":"New Approaches in Image Compression and Noise Removal","authors":"L. State, C. Cocianu, C. Sararu, P. Vlamos","doi":"10.1109/.33","DOIUrl":"https://doi.org/10.1109/.33","url":null,"abstract":"Principal Component Analysis is a well-known statistical method for feature extraction and it has been broadly used in a large series of image processing applications. The multiresolution support provides a suitable framework for noise filtering and image restoration by noise suppression. The procedure used is to determine statistically significant wavelet coefficients and from this to specify the multiresolution support. In the third section, we introduce the algorithms Generalized Multiresolution Noise Removal, and Noise Feature Principal Component Analysis. The algorithm Generalized Multiresolution Noise Removal extends the Multiresolution Noise Removal algorithm to the case of general uncorrelated Gaussian noise, and Noise Feature Principal Component Analysis algorithm allows the restoration of an image using a noise decorrelation process. A comparative analysis of the performance of the algorithms Generalized Multiresolution Noise Removal and Noise Feature Principal Component Analysis is experimentally performed against the standard Adaptive Mean Variance Restoration and Minimum Mean Squared Error algorithms. In the fourth section, we propose the Compression Shrinkage Principal Component Analysis algorithm and its model-free version as Shrinkage-Principal Component Analysis based methods for noise removal and image restoration. A series of conclusive remarks are supplied in the final section of the paper.","PeriodicalId":408299,"journal":{"name":"2009 First International Conference on Advances in Satellite and Space Communications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126667284","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: 10

Network Centric Core Avionics 网络中心核心航空电子设备

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.21

S. Montenegro

引用次数: 6

Towards the Reliable and Efficient Interplanetary Internet: A Survey of Possible Advanced Networking and Communications Solutions 迈向可靠和高效的星际互联网:可能的先进网络和通信解决方案综述

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.28

G. Araniti, I. Bisio, M. De Sanctis

引用次数: 11

A Study on Quality Management for Aerospace Product with Multilevel Suppliers 航空航天多层次供应商产品质量管理研究

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.35

Haoli Chang, Haicheng Yang, Haibin Liu, Junjie Hou

引用次数: 6

Easy-to-Deploy Emergency Communication System Based on a Transparent Telecommunication Satellite 基于透明通信卫星的易部署应急通信系统

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.10

M. Dervin, I. Buret, C. Loisel

引用次数: 11

TCP Noordwijk for High-Speed Trains TCP Noordwijk高速列车

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.15

M. Luglio, C. Roseti, G. Savone, F. Zampognaro

{"title":"TCP Noordwijk for High-Speed Trains","authors":"M. Luglio, C. Roseti, G. Savone, F. Zampognaro","doi":"10.1109/.15","DOIUrl":"https://doi.org/10.1109/.15","url":null,"abstract":"In a scenario where people need to travel frequently for their business and leisure, spending a lot of time on high-speed trains, airplanes or ships, it is necessary to provide them a broadband Internet connection while moving. Broadband satellite systems, for their characteristics in terms of coverage and flexibility, can be the best solution for this type of scenarios. Nevertheless, although satellite systems allow a global coverage over the railways, the channel related to a high-speed train is characterized by frequent signal outages due to tunnels, steel covered bridges and powerline trellises. In particular, trellises, always and periodically present along the railroad, cause frequent obstructions of the line of sight, which implies packet loss that significantly affects TCP performance. In fact, standard TCP based on classical congestion control mechanisms is required to perform continuous restart of the algorithm. In this paper, the use of a new TCP protocol called TCP Noordwijk is proposed. It is based on burst transmission concept, which matches optimally with channel characteristics. The advantages with respect to the standard TCP will be shown.","PeriodicalId":408299,"journal":{"name":"2009 First International Conference on Advances in Satellite and Space Communications","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127318183","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: 14

Real-Time Fleet Ship Monitoring System Using Satellite Broadband Communications and Google Earth 利用卫星宽带通信和谷歌地球的实时船队监测系统

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.44

J. Sorribas, D. Afonso, E. Arilla, Ó. Garcia, A. Hernández, J. Olive, J. L. Ruiz, X. Romero, A. Sandoval, J. A. Serrano, E. Trullols, J. Río

引用次数: 2

Satellite Communication Systems On-Board Spanish Oceanographic Vessels: Performance and Optimization Analysis 卫星通信系统上的西班牙海洋船舶:性能和优化分析

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.20

D. Afonso, E. Arilla, Ó. Garcia, A. Hernández, J. Olive, J. L. Ruiz, X. Romero, A. Serrano, J. Sorribas, E. Trullols, J. Río

{"title":"Satellite Communication Systems On-Board Spanish Oceanographic Vessels: Performance and Optimization Analysis","authors":"D. Afonso, E. Arilla, Ó. Garcia, A. Hernández, J. Olive, J. L. Ruiz, X. Romero, A. Serrano, J. Sorribas, E. Trullols, J. Río","doi":"10.1109/.20","DOIUrl":"https://doi.org/10.1109/.20","url":null,"abstract":"This article describes the architecture of two broadband satellite communication systems using a Very Small Aperture Terminal which have been installed on two Spanish oceanographic research vessels. The potential use, equipment and their characteristics are studied and compared. Analysing four parameters (jitter, round time trip, package loss and throughput), system configuration has been modified from the launch until the final optimization in order to improve TCP/IP based communications. The hardware selection is fundamental to the successful implantation of the systems, which has to guarantee the quality of satellite services. Satellite channels can affect TCP/IP protocols, but these difficulties were overcome with correct system configuration. Despite the service being operated correctly, several tests had to be done periodically to improve it and check the satellite service conditions. After the optimization of equipment configuration and network parameters on VSAT links of both vessels, effective and stable links have been obtained for web navigation and VPN communication.","PeriodicalId":408299,"journal":{"name":"2009 First International Conference on Advances in Satellite and Space Communications","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122332264","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

Rateless Codes for File Transfer over DVB-S DVB-S文件传输的无速率编码

2009 First International Conference on Advances in Satellite and Space Communications Pub Date : 2009-07-20 DOI: 10.1109/.19

Pasquale Cataldi, M. Gerla, F. Zampognaro

引用次数: 13