{"title":"Distributed Diagnosis in Dynamic Fault Environment For Not-Completely Connected Network","authors":"P. M. Khilar, S. Mahapatra","doi":"10.1109/INDCON.2006.302749","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302749","url":null,"abstract":"This paper has considered the problem of distributed diagnosis in dynamic fault environments for not-completely connected network topologies under crash and value fault assumptions. Heartbeat based mechanisms are used to detect the failure and recovery event at a particular node. A diagnosis algorithm has been simulated and the results are presented. The result shows that failure and recovery events both take a constant time, i.e., O(1) round and has been compared with algorithm FHB. The algorithm is shown to produce significantly shorter latency and state holding time than prior algorithms, which focused primarily on minimizing the number of tests at the expense of latency","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115599801","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":"Tracking of Heart Wall Motion using Unscented Kalman Filter","authors":"D. Hazarika, C. Mahanta, S. Dandapat","doi":"10.1109/INDCON.2006.302804","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302804","url":null,"abstract":"We propose a semiautomatic method based on unscented Kalman filter (UKF) to track left ventricular heart wall motion from a series of echocardiographic images. Our method requires manual drawing of contour on the first frame of the image sequence to represent the left ventricle boundary. Heart wall tracking from echocardiographic image is a difficult task because of poor signal-to-noise ratio and presence of speckle noise. For speckle noise removal adaptive weighted median filter is used. Tracking results obtained by using our proposed UKF based method are compared with results obtained by using Kalman filter (KF) based tracker. The root mean square error (RMSE) between actual and tracked boundary of the heart wall is calculated for each pixel using both these methods. It is observed that RMSE produced by UKF based tracker is less than that produced by KF based tracker","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115281004","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 Reduced Complexity hybrid switched mode detector using interference cancellation methods for DS-CDMA systems","authors":"R. Agarwal, B. Reddy, K. K. Aggarwal","doi":"10.1109/INDCON.2006.302768","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302768","url":null,"abstract":"Nonlinear interference cancellation multiuser detection algorithms have less BER and are less complex than linear multiuser detection methods. We present a hybrid switched mode detector that uses existing interference cancellation methods i.e. parallel interference cancellation (PIC) and successive interference cancellation (SIC) based on channel conditions. This proposed detector takes decisions based on number of users on the channel and switches either to SIC method or PIC method. The switching mechanism is exploited by performance complexity tradeoff between matched filter detector and nonlinear interference cancellation methods","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124302631","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":"Bias Estimation of Multiple Radars by Quasi-Recursive Filtering","authors":"K. Chittella, T. Garai, S. Mukhopadhyay","doi":"10.1109/INDCON.2006.302778","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302778","url":null,"abstract":"This paper presents a method for estimating bias in radar measurements used in tracking aerospace targets. The bias-free and less noisy radar measurement is critical as it would provide correct information of target kinematics which is a necessity of the guidance law to generate the tracking commands. In a typical interception scenario, multiple radars are employed to detect and track target kinematics. Bias estimation is often difficult because of limited observability of sensor biases as there may not be a unique set of biases that explains the relative errors between measurements. The sensors involved may be dissimilar, and their corresponding bias parameters may differ in magnitude and type. The various sources of biases are sensor bias, alignment error (tilt error), and radar position uncertainty. Radar measurements are to be debiased and noise filtered effectively before they can be used singly or in conjunction with any onboard sensor for generating tracking commands. The formulation of bias estimator described here is designed for tracking systems, such as aircrafts, ships, with multiple sensors as radars, jam strobe detectors, GPS, ESM and wider variety of targets and sensors. The paper concisely states the algorithm which addresses the above mentioned problems and illustrates its performance capabilities through results obtained by applying it to a realistic ballistic target tracking scenario","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115921323","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}
Kaushik Vaidyanathan, Anusha Radhakrishnan, Valli Sounthariya Kumar, K. Kannan
{"title":"VLSI Implementation of Low Power High Throughput Low Density Parity Check Code Decoder for Optical Communication","authors":"Kaushik Vaidyanathan, Anusha Radhakrishnan, Valli Sounthariya Kumar, K. Kannan","doi":"10.1109/INDCON.2006.302827","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302827","url":null,"abstract":"In this paper we propose a novel architecture with an adaptive approach to the existing partly parallel joint code and decoder design methodology for low density parity check (LDPC) codes. The low power and high throughput are achieved by an 'adaptive iteration controller', regulating the number of iterations required for error correction. We propose an architecture for a 2304 bit, rate-frac12, (3,6) regular LDPC code decoder which supports a symbol throughput of 216 Mbps and achieves a maximum BER of 10-6 at 2 dB over AWGN channel performing a maximum of 12 decoding iterations. We inspect the possibility of LDPC decoder serving as channel decoders for synchronous optical networks (SONET), 802.3an (10G Ethernet), DVB-S2 (digital video broadcast) and 802.16e (broadband wireless access). Cadence RTL Compiler has been used for synthesis at 90 nm and a special flow has been devised to predict and analyze performance in very deep sub-micrometer (vDSM)","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115965921","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":"An Effective Fusion Technique Based on Signal to Noise Ratio","authors":"N. Gopalan, K. Batri","doi":"10.1109/INDCON.2006.302759","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302759","url":null,"abstract":"Information retrieval (IR) is the process of retrieving information that is relevant to the users' needs. Data fusion in IR usually combines the various retrieval schemes (strategies) to enhance the performance of the IR systems. Though, the fusion operation successfully combines the merits of all participating member strategies, some of them may affect it's performance. Hence, it is essential to eliminate role of the worst performing members. This paper focuses on a method, which effectively combines the best functioning schemes. In the proposed approach, assignment of the final relevance score to the documents is based on the principle of signal to noise ratio. An algorithm is used to separate the best performing (information bearings) schemes from the worst (noise) ones. The presented method is tested in three test document collections namely ADI, MED, and CISI and it has been identified that, the proposed approach results in significant improvement over the existing Comb-functions for combining scores","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122559442","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}
Senior Member, A. K. Deb, Reshma Khemchandani, Suresh Chandra
{"title":"Regularized Least Squares Potential SVRs","authors":"Senior Member, A. K. Deb, Reshma Khemchandani, Suresh Chandra","doi":"10.1109/INDCON.2006.302859","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302859","url":null,"abstract":"In this paper, we propose a regularized least squares approach to potential SVRs. The proposed solution involves inverting a single matrix of small dimension. In the case of linear SVRs, the size of the matrix is independent of the number of data samples. Results involving benchmark data sets demonstrate the computational advantages of the proposal. In a recent publication, it has been highlighted that the margin in support vector machines (SVMs) is not scale invariant. This implies that an appropriate scaling can have an impact on the generalization performance of the SVM based regressor. Potential SVMs address this issue and suggest a new approach to regression","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128312215","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}
C. Babu, N. Athmaraman, A. Ganesan, S. Soundararajan, R. Muthukumar
{"title":"SWARM: Sensor driven Water and Agricultural Resources Management","authors":"C. Babu, N. Athmaraman, A. Ganesan, S. Soundararajan, R. Muthukumar","doi":"10.1109/INDCON.2006.302766","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302766","url":null,"abstract":"Efficiently managing the use of water and fertilizers has always been a major concern in agricultural practices. The scarcity of fresh water has been one of the motivating factors in developing efficient irrigation systems. Apart from the environmental concern in water management, it facilitates better growth of the crops. Fertilizers in low quantities can considerably retard crop growth and hence affect production. Synthetic fertilizers in high quantities pollute the soil and render ground water unsuitable for consumption. Measuring the nutrient availability in real time and properly delivering the right amount of the nutrients at the appropriate time can be immensely useful. The primary objective of SWARM is to remotely monitor the water and nutrient availability and deliver the corresponding resources dynamically in accordance with the data collected. The SWARM system was implemented at a farm measuring 250 ft times 80 ft in Kuppam, Andhra Pradesh, India. Groundnut is being cultivated in the farm. It was tested for a period of around one and a half months and results have been provided. The system has shown promising results when compared to manually supplying water and fertilizers. The SWARM software was written in the Javatrade programming language","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127584131","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":"Non-linear State Estimation for Continuous Stirred Tank Reactor using Neural Network State Filter","authors":"K. Srinivasan, J. Prakash","doi":"10.1109/INDCON.2006.302760","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302760","url":null,"abstract":"In this paper, a systematic approach to design a non-linear observer to estimate the state vector of a non-linear dynamic system has been presented. The neural network based state filtering algorithm proposed by A.G. Parlos et al. has been used by the authors to estimate the state variables, concentration and temperature in the CSTR process","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126551831","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":"Test Vector Ordering For Power Reduction During Transmission of Compressed Test Patterns To Embedded System-On-Chip","authors":"C. Giri, N. Reddy Cheruku, S. Chattopadhyay","doi":"10.1109/INDCON.2006.302782","DOIUrl":"https://doi.org/10.1109/INDCON.2006.302782","url":null,"abstract":"This paper considers the problem of test-bus power reduction in system-on-chip testing. It has been seen that while the cores are fitted with P1500 wrapper, transitions occurring in the bypass registers can be comparable to those in the scan chain. Unlike bus encoding the proposed solution using test vector reordering does not use any extra hardware. It neither affects the compression ratio nor test application time. Experimental results on ISCAS89 benchmark circuits show up to 75% saving in flip count occurring in test bus in a dictionary based test data compression","PeriodicalId":122715,"journal":{"name":"2006 Annual IEEE India Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128911692","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}