2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)最新文献_第2页

Effect of mutual coupling in E and H plane on microstrip antenna array conformal on cylindrical surface E面和H面互耦合对微带天线阵圆柱形保形的影响

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719773

S. D. Gupta

{"title":"Effect of mutual coupling in E and H plane on microstrip antenna array conformal on cylindrical surface","authors":"S. D. Gupta","doi":"10.1109/ICSPCOM.2013.6719773","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719773","url":null,"abstract":"Majority of real world shapes can be approximated as cylindrical surface or a cylindrical sector. For microstrip antenna applications one must consider this important perspective in the design and development of conformal antenna array. Antenna array to function as per design parameters, it is required to account for important aspects such as effects of mutual coupling between the antennas elements. Performance of conformal array antennas based on the array excitation, element pattern, and array shape among many other factors that must be known in order to determine its characteristics. Radiation pattern of the antenna array under the matched condition analysis is an important factor especially if the array is designed for scanning. To calculate the element patterns in the actual curved environment, the ideal approach is to include the effect of mutual coupling. To provide near accurate results, it may be worthwhile that we consider simple models that can in many cases are near accurate and easy to understand. These approaches are accurate as well as it serves the basic purpose of illustrating fundamental characteristics of the conformal antenna array. In this paper performance of rectangular microstrip antenna arrays conformal on cylindrical surface with effect of mutual coupling has been presented. Some of the calculations in the array designs are based on simple models.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114162740","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

Grapheme Gaussian model and prosodic syllable based Tamil speech recognition system 基于词素高斯模型和前音音节的泰米尔语语音识别系统

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719821

A. Ganesh, C. Ravichandran

{"title":"Grapheme Gaussian model and prosodic syllable based Tamil speech recognition system","authors":"A. Ganesh, C. Ravichandran","doi":"10.1109/ICSPCOM.2013.6719821","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719821","url":null,"abstract":"Automatic Speech Recognition is an active field of research to identify speech patterns for providing the equivalent text. The challenges in automatic speech recognition start right from choosing the appropriate unit for the language being dealt with. Some of the units that could be used are word, phoneme, triphone, syllable, demisyllable, senone and morpheme. A syllable based Speech model is used which reduces the vocabulary size and also easier to align. This also suits Tamil, which is a syllable based language. In the model described in this paper, the connected word inputs are segmented into individual words using short term energy and the isolated words are further broken down into characters using Varied-Length Maximum Likelihood (VLML) algorithm. Gaussian Mixture Model (GMM), which is a speaker-independent model suitable for large sets of data, is used for classifying the characters for later pattern matching against the trained syllables. This paper introduces a new algorithm named VLML algorithm that is used for identifying the boundary of each character and explains the proposed process of speech recognition system for Tamil language.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131170927","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: 8

Field characteristics in dielectric rectangular wave guide with harmonics 含谐波的介电矩形波导中的场特性

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719823

Deepender Dabas, N. S. Raghava, Savita Dabas

引用次数: 0

Joint chunk, power and bit allocation in OFDMA based LTE systems 基于OFDMA的LTE系统的联合分组、功率和位分配

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719765

P. Yadav, G. Kumar, V. Dwivedi, V. Karwal

引用次数: 1

Orthogonal space-time block coding for wireless sensor networks: Performance results 无线传感器网络的正交空时分组编码:性能结果

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719777

V. Sachan, S. A. Imam

引用次数: 0

Trapezoidal patch with H and V shaped slot loaded microstrip antenna 带H型和V型槽载微带天线的梯形贴片

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719844

Radha Sharma

引用次数: 3

Designing of speaker based wavelet filter 基于扬声器的小波滤波器设计

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719794

M. Saini, Saurabh Jain

{"title":"Designing of speaker based wavelet filter","authors":"M. Saini, Saurabh Jain","doi":"10.1109/ICSPCOM.2013.6719794","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719794","url":null,"abstract":"Speech recognition emphasis on capturing typical properties of phonemes, irrespective of any speaker-originated variations in speaking style and pronunciation, while speaker recognition aims at exploiting these individualities. These different traits of the speaker recognition tasks compelled us to search a more general approach. The main motto of this paper is to study speech style that would favor the speaker recognition process, and provide a better categorization of the individual voices. A unique filter design process has been proposed for individual speaker. The wavelet system that is developed can be used for analysis and synthesis of the speech signals. The performance analysis of wavelet filter coefficients and maximally flat wavelet filter is given on the basis of performance parameters mentioned above. Estimation of filter coefficients is done to analyze the estimation of analysis wavelet filter from a given signal. After the estimation of filter coefficient, delay is provided by tuning the filter parameter at each coefficient and modified filter coefficient is used to reconstruct the orthogonal wavelet. This is validated by calculating, the energy compaction ratio (ECR), the absolute mean squared errors (AMSE) and minimum mean square error (MMSE) between the two signals (original signal and reconstructed signal). The designed wavelet outperforms the predefined wavelet in terms of three performance parameters and the comparison between categorization rates of the two wavelets are discussed in the result section.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125016097","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

Drive matching issues in multi gate CMOS inverter 多栅极CMOS逆变器中的驱动匹配问题

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719811

G. Kaushal, S. Maheshwaram, S. Dasgupta, S. Manhas

{"title":"Drive matching issues in multi gate CMOS inverter","authors":"G. Kaushal, S. Maheshwaram, S. Dasgupta, S. Manhas","doi":"10.1109/ICSPCOM.2013.6719811","DOIUrl":"https://doi.org/10.1109/ICSPCOM.2013.6719811","url":null,"abstract":"In nanowire CMOS design matching n-FET and p-FET current drive and threshold voltage for symmetric performance is a challenging problem. In this paper, we investigate different approaches to match the n- and p-FET drives in silicon nanowire (Si-NW) CMOS inverter. Device design parameters: gate length (LG), number of nanowire (NNW), wire diameter (DNW) and source/drain (S/D) implantation dose (Φ) are used as drive tuning parameters to match the n-FET and p-FET drives. We find that in comparison to use of LG or NNW as tuning parameters, the DNW or Φ tuned CMOS inverters provide significant reduction in circuit active area and active power dissipation. However, the increase of DNW in p-FET required to match the n-FET drive results in a large amount of increase in leakage current in DNW tuned CMOS as compared to Φ tuned NW CMOS inverter. Also, it is found that the effect of process variation on NW device performance is more sensitive with DNW as compared to Φ. It is seen that among all methods, Φ tuned NW CMOS has better overall performance. When compared with the conventional matching approach (multi-NW in p-FET to match the n-FET drive), the Φ tuned NW CMOS inverter shows 38% saving in active power dissipation, and 28% saving in the active area. Hence, Φ tuned NW CMOS inverter is an excellent option for low power applications in Si-NW technology.","PeriodicalId":272955,"journal":{"name":"2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125427921","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

THz band nanoantennas for future mobile communication 用于未来移动通信的太赫兹波段纳米天线

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719754

B. Rawat, A. Bhat, J. Pistora

引用次数: 2

A novel CMOS current bleeding mixer based on inductive degeneration 一种基于感应退化的CMOS放流混合器

2013 INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION (ICSC) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCOM.2013.6719761

M. Ahmed, M. S. Sultan, Syed Azeemuddin

引用次数: 3