{"title":"Jitter measurements for performance enhancement in the service sector","authors":"Agnes Jacob, P. Mythili","doi":"10.1109/INDCON.2011.6139496","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139496","url":null,"abstract":"In a leading service economy like India, services lie at the very center of economic activity. Competitive organizations now look not only at the skills and knowledge, but also at the behavior required by an employee to be successful on the job. Emotionally competent employees can effectively deal with occupational stress and maintain psychological well-being. This study explores the scope of the first two formants and jitter to assess seven common emotional states present in the natural speech in English. The k-means method was used to classify emotional speech as neutral, happy, surprised, angry, disgusted and sad. The accuracy of classification obtained using raw jitter was more than 65 percent for happy and sad but less accurate for the others. The overall classification accuracy was 72% in the case of preprocessed jitter. The experimental study was done on 1664 English utterances of 6 females. This is a simple, interesting and more proactive method for employees from varied backgrounds to become aware of their own communication styles as well as that of their colleagues' and customers and is therefore socially beneficial. It is a cheap method also as it requires only a computer. Since knowledge of sophisticated software or signal processing is not necessary, it is easy to analyze.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126762856","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}
{"title":"Performance comparison of different sub band AEC","authors":"O. P. Sahu, S. Dhull, S. Arya, Sachin Verma","doi":"10.1109/INDCON.2011.6139411","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139411","url":null,"abstract":"Echo Cancellation is important phenomenon in today's era. We can perform echo cancellation with sub band structures. We have designed different sub band structures for efficient echo cancellation. ERLE based Comparison is done between these models.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115121424","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}
{"title":"Radio numbers of some classes of GP(n, 1) and Cin(1, r)","authors":"S. Kola, P. Panigrahi","doi":"10.1109/INDCON.2011.6139450","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139450","url":null,"abstract":"For any simple connected graph G with diameter d and an integer k, 1 ≤ k ≤ d, a radio k-coloring is an assignment f of positive integers to the vertices of G such that |f(u)−f(v)|≥, 1 + k − d(u, v), where u and v are any two distinct vertices of G and d(u, v) is the distance between u and v. The maximum color (positive integer) assigned by f to some vertex of G is called the span of f. The minimum of spans of all possible radio k-colorings of G is called the radio k-chromatic number of G, denoted by rck(G). For k = d, the coloring is called the radio coloring and the radio d-chromatic number is the radio number of G. In this article, we give a criteria for a radio coloring to be minimal. We use this technique to define minimal radio colorings of some classes of generalized Petersen graphs and circulant graphs and find their radio numbers.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115600703","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}
{"title":"Performance of a synchronous generator in stand-alone wind energy conversion system","authors":"S. Sharma, Bhim Singh","doi":"10.1109/INDCON.2011.6139537","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139537","url":null,"abstract":"This paper deals with performance analysis of synchronous generator (SG) in stand-alone wind energy conversion system (SWECS) for three-phase four-wire consumer loads. To control the frequency of SWECS, a controller is used which consists of a four-leg insulated gate bipolar transistors (IGBT's) based voltage source converter (VSC) with a battery at its dc link. An automatic voltage regulator is used to control the field excitation voltage to regulate the stator terminal voltage. The proposed SG based SWECS is modeled in MATLAB simulink environment using sim power system and discrete step solver. The simulated performance of SG based SWECS is demonstrated the function of controller as a load leveler, load balancer, neutral current compensator and harmonic eliminator.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124370828","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}
{"title":"Green software development model: An approach towards sustainable software development","authors":"Sanath S. Shenoy, Raghavendra Eeratta","doi":"10.1109/INDCON.2011.6139638","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139638","url":null,"abstract":"The Software development lifecycle (SDLC) currently focuses on systematic execution and maintenance of software by dividing the software development process into various phases that include requirements-gathering, design, implementation, testing, deployment and maintenance. The problem here is that certain important decisions taken in these phases like use of paper, generation of e-Waste, power consumption and increased carbon foot print by means of travel, Air-conditioning etc may harm the environment directly or indirectly. There is a dearth of models that define how a software can be developed and maintained in an environment friendly way. This paper discusses the changes in the existing SDLC and suggests appropriate steps which can lead to lower carbon emissions, power and paper use, thus helping organizations to move towards greener and sustainable software development.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127160895","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}
{"title":"Robust feature extraction from spectrum estimated using bispectrum for Isolated Word Recognition","authors":"N. S. Nehe, P. Ajmera, D. Jadhav, R. S. Holambe","doi":"10.1109/INDCON.2011.6139389","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139389","url":null,"abstract":"Extraction of robust features from noisy speech signals is one of the challenging problems in Automatic Speech Recognition (ASR). For Gaussian process, its bispectrum and all higher order spectra are identically zero, which means that bispectrum removes the additive white Gaussian noise while preserving the magnitude and phase information of original signal. Using this bispectrum property, spectrum of original signal can be recovered from its noisy version. Robust Mel Frequency Cepstral Coefficients (MFCC) are extracted from the estimated spectral magnitude (denoted as Bispectral-MFCC (BMFCC)). The effectiveness of BMFCC has been tested on TI-46 isolated word database in noisy (additive white Gaussian) environment. The experimental results show the superiority of the proposed technique over conventional methods for Isolated Word Recognition (IWR).","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127204444","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}
{"title":"Analytic expressions for the Rice Ie-function and the incomplete Lipschitz-Hankel Integrals","authors":"P. Sofotasios, S. Freear","doi":"10.1109/INDCON.2011.6139504","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139504","url":null,"abstract":"This paper presents novel analytic expressions for the Rice Ie-function, Ie(k, x), and the incomplete Lipschitz-Hankel Integrals (ILHIs) of the modified Bessel function of the first kind, Iem, n(a, z). Firstly, an exact infinite series and an accurate polynomial approximation are derived for the Ie(k, x) function which are valid for all values of k. Secondly, an exact closed-form expression is derived for the Iem, n(a, z) integrals for the case that n is an odd multiple of 1/2 and subsequently an infinite series and a tight polynomial approximation which are valid for all values of m and n. Analytic upper bounds are also derived for the corresponding truncation errors of the derived series'. Importantly, these bounds are expressed in closed-form and are particularly tight while they straightforwardly indicate that a remarkable accuracy is obtained by truncating each series after a small number of terms. Furthermore, the offered expressions have a convenient algebraic representation which renders them easy to handle both analytically and numerically. As a result, they can be considered as useful mathematical tools that can be efficiently utilized in applications related to the analytical performance evaluation of classical and modern digital communication systems over fading environments, among others.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125855518","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}
{"title":"Ultra wide band signal design by angular and radial prolate spheroidal wave functions (PSWF)","authors":"D. Adhikari, C. Bhattacharya","doi":"10.1109/INDCON.2011.6139572","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139572","url":null,"abstract":"Prolate spheroidal wave functions (PSWF) provide significant advantage in ultra wideband (UWB) pulse-shapes design because of the time limited nature and wide bandwidth of such orthogonal signal waveforms. In this paper, we show the design procedure for UWB pulses utilizing the joining properties of radial and angular PSWF. Results in the paper demonstrate utility of eigenvalues and power spectral properties of the designed waveforms those comply the FCC regulations.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126145604","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}
{"title":"A current-slope based fault detector for digital relays","authors":"Karri Nagaraju, P. S. V. S. T. Varma, B. Varma","doi":"10.1109/INDCON.2011.6139589","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139589","url":null,"abstract":"Any reliable transmission line protection scheme is expected to quickly detect faults on lines to initiate the procedures for fault section identification and fault classification. This paper proposes a new fault detection technique for digital relaying of transmission lines in power systems. The three sampled phase currents at the relay point are processed by the proposed current-slope based method to detect faults. The performance of the proposed algorithm is evaluated by considering frequency deviations, sudden load changes and other practical situations. Results indicate that the algorithm is very fast and accurate compared to other methods.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123194535","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}
{"title":"Design of data adaptive IFFT/FFT block for OFDM system","authors":"L. M. Rajeswari, S. Manocha","doi":"10.1109/INDCON.2011.6139435","DOIUrl":"https://doi.org/10.1109/INDCON.2011.6139435","url":null,"abstract":"Inverse Fast Fourier Transform/ Fast Fourier Transform (IFFT/FFT) processors are crucial blocks for an Orthogonal Frequency Division Multiplexing (OFDM) transceiver system. However, in the current OFDM systems, the system complexity and processing rate do not vary adaptively with the input data. In this paper, we propose a novel IFFT/FFT architecture for the OFDM Transceiver system that exploits the correlation between bytes of incoming information to adaptively choose between the Radix-2 and Radix • 4 algorithm. Using this architecture, we have achieved additional free data slots per frame. The transceiver system has been tested end-to-end and implemented on FPGA Board.","PeriodicalId":425080,"journal":{"name":"2011 Annual IEEE India Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123300802","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}