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2009 International Conference on Signal Acquisition and Processing最新文献

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A Pattern Matching Technique for Multiple Sequences Alignment with GAP Consideration 考虑GAP的多序列比对模式匹配技术
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.35
H. Mathkour, Muneer Ahmad
{"title":"A Pattern Matching Technique for Multiple Sequences Alignment with GAP Consideration","authors":"H. Mathkour, Muneer Ahmad","doi":"10.1109/ICSAP.2009.35","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.35","url":null,"abstract":"Protein and DNA sequences of different organisms are often related and they indicate the knowledge about species. The consideration is made to align more than two sequences so that a level/extend of similarity or differences be found that would help in categorizing the common characteristics of species and their behaviors. An efficient recursive approach is proposed in this paper that would not only find the multiple sequences Alignment for protein/DNA sequence but also provides means for consideration of gaps between them. The algorithm will calculate the degree of similarity and bounds/extends of gaps to bring refined and useful results. The input variables (e.g. Strands) of the program are user dependant and internal calculations are performed in recursive fashion to add intelligence to the input Strands. Experimental results have shown more favorable performance of the proposed approach as compared to other approaches.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114470513","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
Waveform Set Design Using Hermite-Rodriguez Functions for CDMA Communications 基于Hermite-Rodriguez函数的CDMA通信波形集设计
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.30
M. A. Yusoff, Z. Zang
{"title":"Waveform Set Design Using Hermite-Rodriguez Functions for CDMA Communications","authors":"M. A. Yusoff, Z. Zang","doi":"10.1109/ICSAP.2009.30","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.30","url":null,"abstract":"In this paper, we consider the waveform set design for CDMA communications using orthogonal Hermite-Rodriguez basis functions. The waveform set design problem is formulated as a constrained L2 space optimization problem. For bandwidth efficiency, all the waveforms in the set are constrained to have approximately the same desired spectral shapes in a prescribed passband. To minimize intersymbol interference and co-channel interference, all the waveforms in the set are constrained to have low values of autocorrelation and cross-correlation. Numerical results are presented to illustrate the effectiveness of Hermite-Rodriguez functions and the usefulness of the design method to solve the waveform set design problem.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116002616","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
Performance of Real-Time Kinematic Global Positioning System and Automatic Level Surveying for Height Determination - A Comparison 实时运动全球定位系统与自动水准测量的高程测定性能比较
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.37
S. R. Saghravani, S. Mustapha, S. F. Saghravani, S. Ibrahim, M. K. Yusoff
{"title":"Performance of Real-Time Kinematic Global Positioning System and Automatic Level Surveying for Height Determination - A Comparison","authors":"S. R. Saghravani, S. Mustapha, S. F. Saghravani, S. Ibrahim, M. K. Yusoff","doi":"10.1109/ICSAP.2009.37","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.37","url":null,"abstract":"The purpose of the research was to determinevertical accuracy of RTK-GPS in comparing with automaticlevel surveying procedure as has been applied in the vicinity of the University Putra Malaysia campus. A comparison of the differences between the two methods indicates 95% confidence accuracy. The results obtained by this experiment indicated an accuracy of 0-10 centimeters in the measurement of elevation by RTK-GPS system. The result of the present work also indicated that the RTK-GPS system might be very useful in surveying work as carried out by topographers, engineers, and surveyors etc.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"34 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114036568","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
Signal Separation of Nonlinear Time-Delayed Mixture: Time Domain Approach 非线性时滞混合信号分离:时域方法
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.11
W. L. Woo, S. Dlay, John Hudson
{"title":"Signal Separation of Nonlinear Time-Delayed Mixture: Time Domain Approach","authors":"W. L. Woo, S. Dlay, John Hudson","doi":"10.1109/ICSAP.2009.11","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.11","url":null,"abstract":"— In this paper, a novel algorithm is proposed to solve blind signal separation of nonlinear time-delayed mixtures of statistically independent sources. Both mixing and nonlinear distortion are included in the proposed model. Maximum Likelihood (ML) approach is developed to estimate the parameters in the model and this is formulated within the framework of the generalized Expectation-Maximization (EM) algorithm. Adaptive polynomial basis expansion is used to estimate the nonlinearity of the mixing model. In the E-step, the sufficient statistics associated with the source signals are estimated while in the M-step, the parameters are optimized by using these statistics. Generally, the nonlinear distortion renders the statistics intractable and difficult to be formulated in a closed form. However, in this paper it is proved that with the use of Extended Kalman Smoother (EKS) around a linearized point, the M-step is made tractable and can be solved by linear equations.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114259304","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
A Framework for RFID Systems' Security for Human Identification Based on Three-Tier Categorization Model 基于三层分类模型的RFID人体识别系统安全框架
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.31
Mu'awya Naser, Mohammad Al Majaly, Muhammad Rafie, R. Budiarto
{"title":"A Framework for RFID Systems' Security for Human Identification Based on Three-Tier Categorization Model","authors":"Mu'awya Naser, Mohammad Al Majaly, Muhammad Rafie, R. Budiarto","doi":"10.1109/ICSAP.2009.31","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.31","url":null,"abstract":"Abstract— Recent researches in the Radio FrequencyIDentification (RFID) attempt to raise solutions for generalapplications within the field, these solutions often are hinderedby the fact that different RFID deployments do not meet intheir specifications and need. In order for these solutions to bevalid and more useful; it has to be classified based on certaindesign requirements, and exploitation area. Our researchcontributes to those solutions in a novel model for a threetieredcategorization of the RFID systems in an attempt toundertake security and privacy risks into a betterunderstanding within a specific domain for a more optimizedaddressing of the problems encountered.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125591335","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
Classification of Motor Imaginary Signals for Machine Commmunication - A Novel Approach for Brain Machine Interface Design 机器通信中运动虚信号的分类——一种新的脑机接口设计方法
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.29
V. Jeyabalan, A. Samraj, C. Loo
{"title":"Classification of Motor Imaginary Signals for Machine Commmunication - A Novel Approach for Brain Machine Interface Design","authors":"V. Jeyabalan, A. Samraj, C. Loo","doi":"10.1109/ICSAP.2009.29","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.29","url":null,"abstract":"A great interest for Brain Machine Interface (BMI) is in the arising nowadays, instigated by several promising scientific and technological outcomes. The methods of measuring, processing and classifying brain activities, in order to interpret neuronal signals into machine control is often regarded as a challenging possibility as the expected beneficiaries are patients affected by motor disorders and paralyses. Aiming at the usage of motor imaginary signals for machine control, the paper presents a BMI architecture with the combination of OPC (OLE process control), a standard communication protocol for the automation and machine control industry. We also analyzed the principle of real-time communication between simulated actuators and MATLAB which was used for signal processing and. Adaptive Recursive Bandpass filters and SFAM were used for the signals feature extraction and classifications respectively, whereas the communication with simulated actuators were realized with the usage of the Matricon OPC Server and MATLAB OPC Client. Test results also indicate the feasibility and effectiveness of implementing the proposed method in real time applications with reference of the control response time.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125657732","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
A Nature Based Fusion Scheme for Multimodal Biometric Person Identity Verification at a Distance 一种基于自然的多模态生物特征远距离身份验证融合方案
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.28
C. Ho, C. Eswaran
{"title":"A Nature Based Fusion Scheme for Multimodal Biometric Person Identity Verification at a Distance","authors":"C. Ho, C. Eswaran","doi":"10.1109/ICSAP.2009.28","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.28","url":null,"abstract":"This paper presents a multimodal biometric verification scheme for face, gait and speech data as inspired by how verification is done at a distance in the natural world.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124886600","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
Tsallis Entropy Based Contrast Enhancement of Microcalcifications 基于Tsallis熵的微钙化对比增强
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.17
J. Mohanalin, P. Kalra, Nirmal Kumar
{"title":"Tsallis Entropy Based Contrast Enhancement of Microcalcifications","authors":"J. Mohanalin, P. Kalra, Nirmal Kumar","doi":"10.1109/ICSAP.2009.17","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.17","url":null,"abstract":"This paper presents a new approach to enhance thecontrast of microcalcifications in mammograms using afuzzy algorithm based on Tsallis entropy. In phase I imageis fuzzified using S membership function. In Phase II usingthe non-uniformity factor calculated from local informationthe contrast of Microcalcifications were enhanced whilesuppressing the background heavily. This is the first time inliterature to propose an enhancement algorithm usingTsallis entropy. Tsallis entropy has an extra parameter q.We assume that grade of mammogram is related with qparameter. The values of q were calculated from thehistogram. The proposed approach can be even suitable fordense mammograms.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125295793","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: 15
Color Space Selection for Color Image Enhancement Applications 彩色图像增强应用的色彩空间选择
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.39
M. Asmare, V. Asirvadam, L. I. Izhar
{"title":"Color Space Selection for Color Image Enhancement Applications","authors":"M. Asmare, V. Asirvadam, L. I. Izhar","doi":"10.1109/ICSAP.2009.39","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.39","url":null,"abstract":"Device independent, quantitative description of color is a challenging problem. Another problem is that even under equal intensity, some colors are visually brighter than others. Different color representations try to overcome these problems, with varying degrees of success. It is for this reason that there are so many standard color representations. In this paper our goal is to analyze and evaluate the various color spaces in color image enhancement applications. Conversion accuracy and structural similarity measure are the two objective parameters to measure the performance of each color space. Eight most common color spaces are formulated and tested. Their conversion efficiency is computed and they are evaluated based on their performance in image enhancement applicability. Image contrast enhancement method based on multi-resolution decomposition is proposed and tested for all the color spaces. The YUV space is has perfect reconstruction while HSI performs the best in the image enhancement.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129145090","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: 59
SBA Backoff Algorithm to Enhance the Quality of Service in MANETs 提高manet服务质量的SBA回退算法
2009 International Conference on Signal Acquisition and Processing Pub Date : 2009-04-03 DOI: 10.1109/ICSAP.2009.47
Sasan Zhalehpoor, H. Shahhoseini
{"title":"SBA Backoff Algorithm to Enhance the Quality of Service in MANETs","authors":"Sasan Zhalehpoor, H. Shahhoseini","doi":"10.1109/ICSAP.2009.47","DOIUrl":"https://doi.org/10.1109/ICSAP.2009.47","url":null,"abstract":"In this paper, Size Based Adaptive backoff algorithm (SBA backoff algorithm) for IEEE 802.11 DCF has been developed to provide Quality of Service (QoS) requirements. SBA backoff algorithm assigns different priority levels based on packet size. Also, SBA backoff algorithm was utilized in the Mobile Ad-hoc Network (MANET), which is a collection of mobile independent nodes. Because of dynamic topology, IEEE 802.11 DCF backoff algorithm suffers from a lack of adequate performance in MANETs. QoS requirements such as throughput, end to end delay and jitter were enhanced by applying SBA backoff algorithm in the MAC layer.","PeriodicalId":176934,"journal":{"name":"2009 International Conference on Signal Acquisition and Processing","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121068682","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: 7
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