2017 40th International Conference on Telecommunications and Signal Processing (TSP)最新文献_第10页

Fractional-Order lossy transmission line with skin effect using NILT method 利用NILT方法研究具有趋肤效应的分数阶损耗传输线

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8076084

N. A. R.-Smith, A. Kartci, L. Brancík

{"title":"Fractional-Order lossy transmission line with skin effect using NILT method","authors":"N. A. R.-Smith, A. Kartci, L. Brancík","doi":"10.1109/TSP.2017.8076084","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076084","url":null,"abstract":"The paper describes a method of modelling lossy transmission lines with frequency dependent parameters in the fractional-order domain. It is shown that in high frequency systems the frequency dependence of the transmission line (TL) and other related losses are essential to be considered in the model. In this paper fractional-order domain is used to model the lossy transmission line, which compensates for losses and provides higher flexibility and more reality for the TL analysis and simulation. As for the frequency dependence of the TL skin effect is included in the model, due to its high impact in high frequency applications. Analysis of a TL is processed in the Laplace-domain which effectively simplifies the solution. Though, the difficult or even impossible part is to obtain the required original time-domain from the results by analytic means. In order to overcome this difficulty a numerical inverse Laplace transform (NILT) method is introduced in this paper. The NILT method is implemented successfully, and the voltage/current waveform distributions along the lossy fractional-order TL are simulated and the results are displayed. The model is effectively tested and realized in the Matlab language.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121677820","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

Exponentially tunable voltage controlled quadrature oscillator 指数可调谐电压控制的正交振荡器

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8075992

R. Sotner, J. Jerabek, J. Petrzela, Ondrej Domansky, W. Jaikla, T. Dostál

引用次数: 1

Reactance transformation to improve range resolution in pulse-compression detection systems 电抗变换提高脉冲压缩检测系统的距离分辨率

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8076032

P. Burrascano, S. Laureti, M. Ricci, L. Senni, G. Silipigni, R. Tomasello

{"title":"Reactance transformation to improve range resolution in pulse-compression detection systems","authors":"P. Burrascano, S. Laureti, M. Ricci, L. Senni, G. Silipigni, R. Tomasello","doi":"10.1109/TSP.2017.8076032","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076032","url":null,"abstract":"The presence of side-lobes in the impulse response retrieved after pulse compression is a limitation in the range resolution performance of detection systems; in order to limit this effect the signal is often shaped by means of windows. In this paper we analyse the causes that produce side-lobes and propose a technique for their reduction, based on time-domain constraints which, in the case of base-band signals, turn in the definition of a particular low-pass filter. In real world applications, the pulse compression is performed by using bandpass signals as excitation, and among these the chirp signals are largely adopted: the useful bandwidth is thus shifted from the base-band. We consequently modify the filtering procedure defined for processing base-band signals, and propose a reactance transformation of the frequency axis to define the filter for the reduction of side-lobes in the case of band-pass chirp excitations. The paper shows that the application of the proposed filtering technique to chirp signals is particularly simple. The effectiveness of the technique is validated on experimental test data.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125233925","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: 6

A novel approach for improving carrier frequency offset tracking performance of frequency domain channel equalizer employed in OFDM systems 一种改善频域信道均衡器载波频偏跟踪性能的新方法

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8075966

Emre Ayduslu, Onur Dursun Toren, Yucel Aydin, A. Özen

引用次数: 0

Modeling of spectrum handoff in 3GPP LTE-A indoor deployment 3GPP LTE-A室内部署中的频谱切换建模

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8075969

Pavel Mašek, Z. Sadreddini, Tugrul Çavdar, Jiri Hosek

{"title":"Modeling of spectrum handoff in 3GPP LTE-A indoor deployment","authors":"Pavel Mašek, Z. Sadreddini, Tugrul Çavdar, Jiri Hosek","doi":"10.1109/TSP.2017.8075969","DOIUrl":"https://doi.org/10.1109/TSP.2017.8075969","url":null,"abstract":"The lack of available radio spectrum and inefficiency in its usage necessitate a new communication paradigm requiring to exploit the existing spectrum opportunistically. One of the perspective spectrum sharing methods, which is currently under a heavy investigation by academia and industry as well across whole Europe, is called Licensed Shared Access (LSA). This novel technology allows for controlled sharing of spectrum between an original owner (primary user, incumbent) and a licensee (secondary user), such as the mobile network operators (MNOs), which coexist geographically. Despite certain benefits, there are still several issues to be solved before the LSA framework will be implemented in commercial infrastructure. One of them is the need to move secondary users (SUs) from the rented LSA band whenever the incumbent needs it. The potential solution for this problem is represented by spectrum handoff, which aims to help SUs to vacate the occupied licensed spectrum and find suitable network resources to resume the unfinished transmissions somewhere else. Inspired by this, we propose a decision making model considering several SUs attributes (RSSI, RSRP, RSRQ, SINR) in order to efficiently implement the handoff procedure and treat SUs to maximize total service time, spectrum utilization and SUs satisfaction. As an input for our simulation model, we have used the set of measurements performed in real 3GPP LTE-A indoor cellular system located at Brno University of Technology, Czech republic. Our achieved simulation results evaluate the spectrum utilization of three LTE cells and provide the total service time for each active SU, while different values of primary user's activity ratio are considered for each cell.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133828671","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

Improved image based protein representations with application to membrane protein type prediction 改进的基于图像的蛋白质表示及其在膜蛋白类型预测中的应用

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8076022

Juan D. Clares, V. Sánchez, A. Peinado, J. A. Morales-Cordovilla, C. Iribar, J. Peinado

{"title":"Improved image based protein representations with application to membrane protein type prediction","authors":"Juan D. Clares, V. Sánchez, A. Peinado, J. A. Morales-Cordovilla, C. Iribar, J. Peinado","doi":"10.1109/TSP.2017.8076022","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076022","url":null,"abstract":"With the explosion of protein sequences generated in the postgenomic era, there is a need for the development of computational methods to characterize and classify them as an alternative to the experimental methods that are expensive and time consuming. Although the amino acid chains that constitute proteins are originally symbolic chains they can be converted into numerical sequences and processed as signals. One recent approach represents a protein as a set of images derived from numerical representations of the protein based on the physicochemical properties of amino acids. Then a feature vector is extracted from texture descriptors of the set of images. In this paper we adopt the same approach of representing proteins as sets of images but we propose to generate the images from evolutionary or structural characterization of proteins instead of generating them from physicochemical properties. We also propose the use of an alternative texture descriptor that, in combination with the proposed approach, obtains a significant improvement of classification accuracy in a membrane protein type prediction task.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133923908","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

An overview of colour LED & CFL lighting interference on the low voltage PLC network 彩色LED和节能灯在低压PLC网络上的干扰概述

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8075973

A. Emleh, A. D. Beer, Ling Cheng, H. Ferreira, A. Vinck

引用次数: 2

Speech recognition using Hilbert-Huang transform based features 基于Hilbert-Huang变换特征的语音识别

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8076000

Samer S. Hanna, N. Korany, M. Abd-el-Malek

{"title":"Speech recognition using Hilbert-Huang transform based features","authors":"Samer S. Hanna, N. Korany, M. Abd-el-Malek","doi":"10.1109/TSP.2017.8076000","DOIUrl":"https://doi.org/10.1109/TSP.2017.8076000","url":null,"abstract":"The Mel-frequency Cepstral Coefficients (MFCCs) are widely used for feature extraction in Automatic Speech Recognition (ASR) systems. MFCCs start by dividing the speech into windows and calculating the Fourier Transform (FT) of each window. The frequency resolution obtained using this scheme depends on the time width of the window. A small window would fail to provide a good frequency resolution, while a big window would fail to obtain a good time resolution. This phenomenon is explained by the way the FT defines frequency; it tries to map the signal to a set of predefined bases. In this work, we propose a speech feature extraction method, we will refer to as Mel Hilbert Frequency Cepstral Coefficients (MHFCCs). MHFCCs use the Hilbert-Huang Transform (HHT) instead of the windowing and the FT scheme used in MFCCs. The HHT is an adaptive time-frequency transform suitable for non-linear and non-stationary signals. It generates its bases from the signal itself. This enables it to obtain a high frequency resolution representation of the signal regardless of the duration of the time window used. Results show that MHFCCs outperform MFCCs in recognition accuracy for a small time window.","PeriodicalId":256818,"journal":{"name":"2017 40th International Conference on Telecommunications and Signal Processing (TSP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134176818","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

Time transfer over 1900 km of DWDM network 时间传输超过1900公里的DWDM网络

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8076077

P. Škoda, J. Radil, J. Vojtěch, V. Smotlacha, S. Zvánovec

引用次数: 0

Measuring cross-lingual semantic similarity across European languages 测量欧洲语言的跨语言语义相似性

2017 40th International Conference on Telecommunications and Signal Processing (TSP) Pub Date : 2017-07-01 DOI: 10.1109/TSP.2017.8076005

Lutfi Kerem Senel, Veysel Yücesoy, Aykut Koç, T. Çukur

引用次数: 12