2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop最新文献_第8页

Queuing aspects of packet coding based bidirectional communication over satellite channels 基于卫星信道双向通信的分组编码的排队问题

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586861

A. Barbero, O. Ytrehus

引用次数: 3

Space-based detection of AIS signals: Results of a feasibility study into an operational space-based AIS system 自动识别系统信号的天基探测:可操作的天基自动识别系统可行性研究的结果

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586862

F. te Hennepe, R. Rinaldo, A. Ginesi, C. Tobehn, M. Wieser, O. Olsen, O. Helleren, R. Challamel, F. Storesund

{"title":"Space-based detection of AIS signals: Results of a feasibility study into an operational space-based AIS system","authors":"F. te Hennepe, R. Rinaldo, A. Ginesi, C. Tobehn, M. Wieser, O. Olsen, O. Helleren, R. Challamel, F. Storesund","doi":"10.1109/ASMS-SPSC.2010.5586862","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586862","url":null,"abstract":"An important system in the field of global maritime surveillance is the Automatic Identification System (AIS), which is responsible for communicating ship- and voyage-related data of surface vessels. In order to improve the performance of the existing land-based AIS system, a consortium led by OHB has been responsible for the development of a full-fledged European space-based AIS system. The main challenge in space-based AIS is the collision of multiple AIS messages in a single slot. Several innovative technologies have been applied to the payload to maximize its detection performance. The constellation has been optimized for high performance, sufficient coverage and low timeliness, resulting in 4 orbital planes consisting of 3 satellites each. Orbital parameters are 550 km altitude at 88° inclination. Assessment of the AIS constellation performance is done by using a dedicated AIS simulator applying either present-day or future traffic models. After definition of the use cases, including so-called of High Traffic Zones, which contain exceptionally dense traffic, the performance per use case has been evaluated. Considering all vessels, the user requirements of 1 hour update interval with 80% detection probability for non-HTZ and 3 hour update interval with 80% detection probability for HTZ, can be met for most use cases. For critical use cases, such as North Atlantic or Mediterranean, these requirements will be met for open sea traffic. Such a situation is representative of space-based AIS complementing the already existing infrastructure of coastal stations.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132417742","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: 16

System capacity optimization in time and frequency for multibeam multi-media satellite systems 多波束多媒体卫星系统时频容量优化

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586902

X. Alberti, J. M. Cebrián, A. Del Bianco, Z. Katona, J. Lei, M. Vázquez-Castro, A. Zanus, L. Gilbert, N. Alagha

{"title":"System capacity optimization in time and frequency for multibeam multi-media satellite systems","authors":"X. Alberti, J. M. Cebrián, A. Del Bianco, Z. Katona, J. Lei, M. Vázquez-Castro, A. Zanus, L. Gilbert, N. Alagha","doi":"10.1109/ASMS-SPSC.2010.5586902","DOIUrl":"https://doi.org/10.1109/ASMS-SPSC.2010.5586902","url":null,"abstract":"Current Ka-band, multi-media satellite systems employ spot beam technology to accommodate a wide range of multi-media type services. These satellites typically employ uniform allocation of RF power and bandwidth to spot beams. Since the traffic distribution tends to be highly asymmetrical and with a high degree of uncertainty, the satellite does not have sufficient flexibility to satisfy the traffic request on a beam per beam basis in an efficient manner. This paper investigates two new candidate multibeam system transmission schemes, namely, the Flexible and Beam-Hoping (BH) scheme, focusing on the forward link. We formulate the system-level optimization and propose an iterative algorithm that always converges given the constraints posed by the payload. The algorithm feeds a detailed system-level simulator which takes into account Ka-band channel and physical layer statistics. Our results show that both candidates outperform the conventional system in terms of both adaptation throughput matching to traffic demands and a more efficient use of available resources. The results were obtained during a project funded by the European Space Agency, with title “Beam Hopping techniques for multibeam satellite systems”.","PeriodicalId":221214,"journal":{"name":"2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131217136","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: 46

Advanced receiver design for satellite-based AIS signal detection 基于卫星的AIS信号检测的先进接收机设计

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586907

P. Burzigotti, A. Ginesi, G. Colavolpe

引用次数: 35

Endpoint Discovery and Contact Graph Routing in space and terrestrial DTNs 空间和地面ddn中的端点发现和接触图路由

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-27 DOI: 10.1109/ASMS-SPSC.2010.5586850

S. Farrell

引用次数: 2

A joint carrier and data estimation scheme for real-time high dynamics GNSS receivers 一种实时高动态GNSS接收机载波和数据联合估计方案

2010 5th Advanced Satellite Multimedia Systems Conference and the 11th Signal Processing for Space Communications Workshop Pub Date : 2010-09-01 DOI: 10.1109/ASMS-SPSC.2010.5586867

P. A. Roncagliolo, Javier G. García, C. Muravchik

引用次数: 5