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5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)最新文献

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Adaptive interference cancellation 自适应干扰消除
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.954852
G. Andrei, L. Vedinas
{"title":"Adaptive interference cancellation","authors":"G. Andrei, L. Vedinas","doi":"10.1109/TELSKS.2001.954852","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.954852","url":null,"abstract":"An adaptive digital beamforming monopulse radar system that uses a uniform linear phased array in the receive mode is described. Digital beamforming consists of antenna elements (array), receiver modules, analog-to-digital converters and a controller. These adaptive radar systems have been successfully applied to the practical tasks of processing measured data from the experimental phased-array antennas. These antennas follow the classic \"digital beamforming\" model since we have available the digitized amplitude and phase of the received signal at every antenna element. In receive mode the main advantages of adaptive radar systems are improved fast adaptive pattern nulling, antenna self-calibration, ultra-low sidelobes and adaptive space-time processing.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124987620","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: 3
Dynamic time-warping method for isolated speech sequence recognition 孤立语音序列识别的动态时间规整方法
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.954886
Vladan VuEkoviC
{"title":"Dynamic time-warping method for isolated speech sequence recognition","authors":"Vladan VuEkoviC","doi":"10.1109/TELSKS.2001.954886","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.954886","url":null,"abstract":"This paper is concerned with isolated speech sequence recognition problem. The dynamic time-warping method is applied for implementation of the very fast real-time speech sequence recognition. An advanced version of the basic algorithm is incorporated in the AREX v1.0 application for the real-time isolated speech sequence recognition. The application developed by the author is intended to operate as a real-time voice command processor.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122004118","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: 5
Improving Costas loop pull in range using pseudo BER detector 利用伪误码率检测器提高科斯塔斯环拉距
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.955880
M. Perić, P. Manojlovic, D. Peric
{"title":"Improving Costas loop pull in range using pseudo BER detector","authors":"M. Perić, P. Manojlovic, D. Peric","doi":"10.1109/TELSKS.2001.955880","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.955880","url":null,"abstract":"This paper describes a method for improving pull in range for the four-phase version of a Costas loop. The basic idea is that a pseudo bit error ratio (PBER) detector is used for fast detection of loop synchronization loss, and to trigger the frequency-sweeping circuitry. After synchronization is achieved the PBER detector detects the small BER and switches off the sweeping circuitry. Several types of PBER detector are considered and experimentally tested. One version is implemented in IMTEL's (Institute for Microwave Techniques and Electronics) digital radio relay systems (DRRS) RRU13A and RRU23A.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"18 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116017942","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: 3
IM/DD optical system performance in the presence of dispersion, timing jitter and Gaussian noise IM/DD光学系统在色散、定时抖动和高斯噪声存在下的性能
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.955825
M. Stefanovic, A. Vidovic
{"title":"IM/DD optical system performance in the presence of dispersion, timing jitter and Gaussian noise","authors":"M. Stefanovic, A. Vidovic","doi":"10.1109/TELSKS.2001.955825","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.955825","url":null,"abstract":"The intensity modulation and direct detection (IM/DD) optical system is considered by treating the optical fiber as a linear medium. First, the conditions under which the dispersion effects dominate over the nonlinear effects are defined. The case of Gaussian pulse propagation is assumed. The error probability is calculated for unchirped and chirped incident pulses in the presence of dispersion, timing jitter and Gaussian noise. Also the detailed analysis of obtained results is performed.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125912690","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: 3
Synthesis of cascaded N-tuplet filters 级联n元滤光片的合成
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.954866
N. Yildirim, O. A. Sen, Y. Sen
{"title":"Synthesis of cascaded N-tuplet filters","authors":"N. Yildirim, O. A. Sen, Y. Sen","doi":"10.1109/TELSKS.2001.954866","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.954866","url":null,"abstract":"In the theory of Darlington type filter synthesis extraction of transmission zero sections one by one, leading to a cascade of Darlington-A, B, C, D and Brune sections bears serious limitations like numerical accuracy problems, negative and/or extreme element values or impractical topologies for Darlington-C-D and Brune sections. In this paper all such problems are evaded/eased by extracting the transmission zeros as groups to form circuit sections which are readily convertible to multiple coupled resonator forms. In this approach, transmission zeros at s=0 and s= /spl infin/ are extracted as groups to form doublets of resonators, the j/spl omega/-axis and /spl sigma/-axis transmission zeros are extracted as groups to form triplets of resonators, pairs of j/spl omega/-axis and /spl sigma/-axis transmission zeros and complex transmission zeros are extracted as groups to form quadruplets of resonators, etc. The classical element extraction procedure in transformed frequency domain is revised to cover extraction of complex transmission zeros as forth order section by zero shifting from both s=0 and s= /spl infin/ leading to realisation as a quadruplet of resonators. Thus, the theory of cascade synthesis is generalised to include cascaded doublets, triplets, quadruplets and other N-tuplets of resonators as building blocks. It is found out that the limitations due to usual numerical accuracy problems are also reduced a lot and the resulting element value spreads can be controlled to avoid extreme values.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127044185","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
Optimal uniform polar quantization 最优均匀极性量化
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.955847
Z. Perić, J.D. Jovkovic
{"title":"Optimal uniform polar quantization","authors":"Z. Perić, J.D. Jovkovic","doi":"10.1109/TELSKS.2001.955847","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.955847","url":null,"abstract":"The simple and complete asymptotical analysis is given for a uniform polar quantizer with respect to mean-square error (MSE). Also, an algorithm for constructing an optimal uniform quantizer for small and moderate N is shown. The algorithm is demonstrated on the Gaussian source example. We also give the conditions for optimality of the polar quantizer and all main equations for phase partitions and optimal number of levels are presented.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"1998 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124447833","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
Tesla and a class of third and fourth grade students 特斯拉和一班三四年级的学生
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.954907
J. W. Wagner
{"title":"Tesla and a class of third and fourth grade students","authors":"J. W. Wagner","doi":"10.1109/TELSKS.2001.954907","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.954907","url":null,"abstract":"Technological advances are happening at an ever increasing rate, and we seem always to be looking forward-which is good-but would it not also be uplifting to look back and acknowledge-even pay homage-to the pioneering spirit of those whose efforts laid the foundation for all the technological advantages we enjoy today? Our schoolbooks, teachers, and professors seldom mention these pioneers....if indeed they know anything of their existence. Further, many historians and book writers have elevated the names of entrepreneurs and technologists for discoveries made by early pioneers, and if we are not more mindful our historical heritage will be lost forever.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116399434","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
Performance of the OFDM system OFDM系统的性能
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.955884
I. Arsic, V. Stankovic, D. Drajic, Z. Nikolic
{"title":"Performance of the OFDM system","authors":"I. Arsic, V. Stankovic, D. Drajic, Z. Nikolic","doi":"10.1109/TELSKS.2001.955884","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.955884","url":null,"abstract":"In this paper, the effect of timing offset, and number of subcarriers on the error probability for an orthogonal frequency division multiplexing (OFDM) system is investigated. It is shown that the probability of error increases as the value of the timing offset increases. Timing offset becomes an increasingly important concern as higher data rates are supported.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"171 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123367509","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: 3
Microwave transistors noise modeling by using variable noise wave temperatures 利用变噪声波温度的微波晶体管噪声建模
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.954899
O. Pronic, V. Markovic
{"title":"Microwave transistors noise modeling by using variable noise wave temperatures","authors":"O. Pronic, V. Markovic","doi":"10.1109/TELSKS.2001.954899","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.954899","url":null,"abstract":"In this paper we proposed a new noise modeling procedure of microwave transistors. The noise modeling is based on a wave representation of transistor intrinsic circuit. The variable noise wave temperatures are introduced as empirical parameters of the model and their frequency dependence is modeled using polynomial regression. In that way noise temperatures can be computed for any frequency from desired frequency range yielding modeling of noise parameters with very good accuracy.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121069699","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
Detection of moving objects in video signal under fast changes of scene illumination 场景光照快速变化下视频信号中运动物体的检测
5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517) Pub Date : 2001-09-19 DOI: 10.1109/TELSKS.2001.955808
V. Zeljkovic, M. Popovic
{"title":"Detection of moving objects in video signal under fast changes of scene illumination","authors":"V. Zeljkovic, M. Popovic","doi":"10.1109/TELSKS.2001.955808","DOIUrl":"https://doi.org/10.1109/TELSKS.2001.955808","url":null,"abstract":"An improvement of a method for the detection of moving objects from image sequences is described. This improvement permits reliable detection of moving objects even in the case of large and fast changes of scene illumination. The quality of the proposed method is illustrated by several examples of the segmentation of a modified real TV sequence.","PeriodicalId":253344,"journal":{"name":"5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128333802","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: 4
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