发布求助
文献互助 智能选刊 最新文献

TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services最新文献

筛选
英文 中文
Influence of crosspolarisation on convolutional encoded BPSK signal transmission over two-link soft-limited channel 交叉极化对双链路软限制信道上卷积编码BPSK信号传输的影响
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572139
G. Djordjevic, P. Ivaniš, I. Djordjevic
{"title":"Influence of crosspolarisation on convolutional encoded BPSK signal transmission over two-link soft-limited channel","authors":"G. Djordjevic, P. Ivaniš, I. Djordjevic","doi":"10.1109/TELSKS.2005.1572139","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572139","url":null,"abstract":"This paper presents the BERs (bit error rates) in detecting BPSK (binary phase-shift keying) signal encoded by convolutional codes and transmitted over a two-link \"piece-wise\" soft limited channel taking into account crosspolarisation effects and the sidelobe interferences from the adjacent satellite systems or terrestrial radio-relay links operating on the same carrier frequency.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127327966","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
Comparison of Hetero and Mono FET and BT Structures Hrvoje Ocevcic, Tomislav Svedek 异质、单质FET和BT结构的比较
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572184
H. Ocevcic, T. Svedek
{"title":"Comparison of Hetero and Mono FET and BT Structures Hrvoje Ocevcic, Tomislav Svedek","authors":"H. Ocevcic, T. Svedek","doi":"10.1109/TELSKS.2005.1572184","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572184","url":null,"abstract":"The properties of hetero and mono FET and BT devices are reviewed and discussed in the context of their suitability for high frequency and noise. GaAs based devices have a defined place in commercial and many more applications. The heterojunction bipolar transistor (HBT) basically is a modified bipolar transistor. The emitter and base layers are formed with different bandgap material. The emitter having the wider band gap, thus the emitter delivers a barrier against the hole injection into the base. HBT technology has become a major player in wireless communication, power amplifier, mixer, and frequency synthesizer applications. HBTs extend the advantages of silicon bipolar transistors to significantly higher frequencies. The HEMT delivers the lowest noise figure with a high gain performance. This high gain in some cases is a disadvantage for problem free volume applications in low frequency range","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131393126","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
Fall estimation of microstrip antenna array side lobe levels by using cosine-type distribution 基于余弦型分布的微带天线阵列旁瓣电平降估计
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572143
A. Abdalla
{"title":"Fall estimation of microstrip antenna array side lobe levels by using cosine-type distribution","authors":"A. Abdalla","doi":"10.1109/TELSKS.2005.1572143","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572143","url":null,"abstract":"Cosine-type microstrip feeding structure, has been modeled, designed and fabricated for array with 16-radiating elements. Analytical data show good agreement with experimental results of considered structure fabricated on RT-Duroid substrate material with thickness h=1.27 mm and electric permittivity /spl epsi//sub r/=10.2 for midband frequency around 1 GHz. Cosine distribution possesses the widest realizable dynamic amplitude range of excitation coefficients, which makes it more eligible to estimate side lobe levels fall of the feeding structure for other tapered distributions. This approach is applied before the fabrication process in which it is considered to be as time and money saving strategy.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132556714","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
TLM modelling of loaded microwave applicators with an excitation through the waveguide 具有波导激励的加载微波应用器的TLM建模
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572086
J. Joković, T. Randjelovic, M. Stojanovic
{"title":"TLM modelling of loaded microwave applicators with an excitation through the waveguide","authors":"J. Joković, T. Randjelovic, M. Stojanovic","doi":"10.1109/TELSKS.2005.1572086","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572086","url":null,"abstract":"In this paper, a real microwave applicator with a waveguide used to launch the energy from the source into the cavity is analyzed using 3D TLM method. First, a loaded cavity is analyzed using conventional TLM simulator with an impulse excitation. For modelling of loaded cavity without feed attached, in order to avoid using of non uniform mesh, TLM algorithm with Z transform is applied. Obtained results are compared with referent values from /spl mu/Wavelab commercial software based on FEM method. Furthermore, in order to investigate the influence of the feed waveguides to the number of resonant modes inside the cavity, microwave applicator with four feed waveguides is modelled. Also, TLM method is applied to the single-feed cavity, and a very good agreement between simulated and experimental results is achieved.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133924515","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
Millimeter Wave Power Combiner Controlled by Microprocessor 由微处理器控制的毫米波功率合成器
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572148
Z. Golubičić, V. Smiljakovic, M. Marjanović
{"title":"Millimeter Wave Power Combiner Controlled by Microprocessor","authors":"Z. Golubičić, V. Smiljakovic, M. Marjanović","doi":"10.1109/TELSKS.2005.1572148","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572148","url":null,"abstract":"Millimeter wave amplifiers consisting of two and four MMIC modules are described. In order to compensate differences of amplitude and phase characteristics of MMIC modules and passive devices, process of power combining is controlled by microprocessor. Simple amplitude and phase modulators are included in combiner branches. The RF power detectors connected to hybrid elements ports control levels of phase and amplitude imbalances","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122978661","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
Establishing communications needs for the urban traffic and public transport integrated system in Bucharest 确定布加勒斯特城市交通和公共交通综合系统的通信需求
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572104
M. Minea, F. Nemtanu, V. Stan
{"title":"Establishing communications needs for the urban traffic and public transport integrated system in Bucharest","authors":"M. Minea, F. Nemtanu, V. Stan","doi":"10.1109/TELSKS.2005.1572104","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572104","url":null,"abstract":"The paper presents communications studies and solutions for an integrated urban traffic/public transport management system, with aspects for the particular situations in Bucharest. Fixed communications architectures along with modern technologies are analysed in the context of the city's possibilities, including GPRS and TETRA solutions. The integrated urban traffic/public transport management system comprises around 100 centralised intersections and over 300 buses, trolleybuses and trams. Specific communications needs are also analysed with quantitative/qualitative criteria.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"103 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115731936","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: 7
CMOS circuit concepts under the influence of quantum effects 量子效应下的CMOS电路概念
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572083
F. Felgenhauer, W. Mathis, M. Begoin
{"title":"CMOS circuit concepts under the influence of quantum effects","authors":"F. Felgenhauer, W. Mathis, M. Begoin","doi":"10.1109/TELSKS.2005.1572083","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572083","url":null,"abstract":"In this paper we discuss the expected impact of quantum effects highly scaled CMOS circuits. On the base of 1-d numerical simulations for transport in mesoscopic electronic systems we develop extended SPICE-type device models. With these SPICE models the influence of quantum effects to the functionality of classical circuit concepts can be studied. Using these results it is our intention to develop circuits with a higher robustness against these quantum effects. For the illustration of our simulation concept we discuss some results of some circuit examples.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126983042","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
Digital watermarks for audio integrity verification 音频完整性验证的数字水印
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572095
Rade PetrovicI
{"title":"Digital watermarks for audio integrity verification","authors":"Rade PetrovicI","doi":"10.1109/TELSKS.2005.1572095","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572095","url":null,"abstract":"This paper proposes a new method of detecting and locating manipulations of audio recordings, such as cuts, inserts, replacements or muting of selected audio segments. The objective is to verify (or dispute) integrity of audio recording in business applications (such as business conducted over the phone), court depositions, journalistic interviews, etc. We assume that embedders are public, residing within audio recorders, while extractors are secure (forensic). For this application we propose a combination of watermarks, including spread spectrum and replica watermarks, resulting in high robustness to erasure and overwriting attacks, and good localization of modified intervals. We also propose pseudo-random stego key hopping as protection against overwrite attacks. Finally, we discuss possible alternative applications of the proposed techniques.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126800433","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: 9
Current developments toward the fourth generation wireless system 第四代无线系统的发展现状
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572098
Z. Bojkovic, M. Stojanovic, B. Milovanović
{"title":"Current developments toward the fourth generation wireless system","authors":"Z. Bojkovic, M. Stojanovic, B. Milovanović","doi":"10.1109/TELSKS.2005.1572098","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572098","url":null,"abstract":"In this paper, wireless access technologies are described. Current developments in the field of wireless broadband networking, as well as path toward the 4G systems are presented. Objective of service framework and QoS management for delivery over hybrid networks are considered.","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"9 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124629043","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
Parabolically Bent Dipole Antenna 抛物线弯曲偶极天线
TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services Pub Date : 2005-09-28 DOI: 10.1109/TELSKS.2005.1572154
D. Petković, D. Krstić
{"title":"Parabolically Bent Dipole Antenna","authors":"D. Petković, D. Krstić","doi":"10.1109/TELSKS.2005.1572154","DOIUrl":"https://doi.org/10.1109/TELSKS.2005.1572154","url":null,"abstract":"The aim of this paper is to present the usage of integral equation for current distribution at curvilinear dipole antennas, which is originally developed by the first author, on the example of parabolically bend dipole. Without details, such as describing the procedures for isolation of quasi-singularity, numerical integration, etc, which can be found in other papers, the main numerical results are presented","PeriodicalId":422115,"journal":{"name":"TELSIKS 2005 - 2005 uth International Conference on Telecommunication in ModernSatellite, Cable and Broadcasting Services","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122235760","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信