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2007 International Symposium on Intelligent Signal Processing and Communication Systems最新文献

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Multi-dimensional parameters joint estimator by Gibbs-MUSIC method 基于Gibbs-MUSIC方法的多维参数联合估计
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445902
Jianguo Huang, Yong Jin, Lijie Zhang
{"title":"Multi-dimensional parameters joint estimator by Gibbs-MUSIC method","authors":"Jianguo Huang, Yong Jin, Lijie Zhang","doi":"10.1109/ISPACS.2007.4445902","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445902","url":null,"abstract":"A multi-dimensional parameters joint estimator by Gibbs-MUSIC method (GSM) is proposed to jointly estimate the azimuth and elevation of multiple sources. In this method, the power of MUSIC spectrum function is regarded as target distribution up to a constant of proportionality, and Gibbs sampling is done on this distribution. Simulation results show that this new method preserves the performance of high-resolution in conventional MUSIC and reduces computation and storage costs at the same time when signal sources are quite limited.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126835322","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
GPS smart jammer suppressin algorithm based on spatial APES 基于空间ape的GPS智能干扰抑制算法
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445830
D. Lu, R. Wu, Ping Li, Zhigang Su
{"title":"GPS smart jammer suppressin algorithm based on spatial APES","authors":"D. Lu, R. Wu, Ping Li, Zhigang Su","doi":"10.1109/ISPACS.2007.4445830","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445830","url":null,"abstract":"Smart jammer is one of the most threat interferences for the GPS receiver, so a smart jammer suppression algorithm is proposed in this paper, which combines spatial amplitude and phase estimation(APES) method and high resolution coherent subspace estimation method. The new method can resolve the problem that spatial APES is unable to cancel multiple coherent interferences, and also provide the accurate GPS signal estimate. Simulation results show that the feasible of the proposed method.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122360062","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 synchronization algorithm based on cyclostationarity and pilots in OFDM systems OFDM系统中基于循环平稳和导频的同步算法
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445951
Liting Guo, Sujun Zhu
{"title":"A synchronization algorithm based on cyclostationarity and pilots in OFDM systems","authors":"Liting Guo, Sujun Zhu","doi":"10.1109/ISPACS.2007.4445951","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445951","url":null,"abstract":"The range of the frequency offset estimation algorithms using pilots only proposed in earlier papers is limited unless initial acquisition is assisted. So in this paper, we propose a new, semi-blind algorithm based on pilots and cyclostationarity. First, the cyclostationarity of the OFDM signal which contains pilots is proved. Then the algorithm for estimating the carrier frequency offset based on the cyclic autocorrelation function of the cyclostationary signal is proposed. Compared with those algorithms using pilots directly, this new algorithm can get larger frequency offset estimation up to half of the bandwidth of the OFDM system without initial acquisition, and the symbol timing can be estimated as well.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129692695","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
Interactive arbitrary-view rendering system using fast IBR and depth correction 采用快速IBR和深度校正的交互式任意视图渲染系统
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445849
Liu Suxing, Z. Zhaoyang, Liu Zhamvei, An Ping
{"title":"Interactive arbitrary-view rendering system using fast IBR and depth correction","authors":"Liu Suxing, Z. Zhaoyang, Liu Zhamvei, An Ping","doi":"10.1109/ISPACS.2007.4445849","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445849","url":null,"abstract":"Generating accurate geometric model of a real world environment and improving the rendering quality remained as the bottleneck problems in the field of arbitrary-view rendering. Inspired by the geometrical limitations between input images, we applied a fast image-based rendering (IBR) method for interactively synthesizing arbitrary-view. Although images form different views are needed, only \"Region of Interest\" (ROI) is used for the synthesis. Besides, a depth correction scheme based on plane-sweep algorithm was used to diminish visual artifact caused by insufficient geometric information. The good performance of our prototyped system has demonstrated the validity and potential of the proposed method.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129828928","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
Analytical link lifetime of a manet based on the three-dimensional Brownian mobility model 基于三维布朗运动模型的马奈连杆寿命分析
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445915
Y. Chau, Yao-Hua Chen
{"title":"Analytical link lifetime of a manet based on the three-dimensional Brownian mobility model","authors":"Y. Chau, Yao-Hua Chen","doi":"10.1109/ISPACS.2007.4445915","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445915","url":null,"abstract":"The average link lifetime of a mobile ad-hoc network (MANET) in a space is analyzed. To derive the statistics of the link lifetime, the modeling of random coordinators of mobile nodes is first established with the three-dimensional Brownian motion. The average link lifetime is derived for a pair of mobile nodes, which is then employed to define the average link lifetime of the corresponding MANET. Numerical and simulation results are presented to validate the analysis.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129247104","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
Adaptive method on signal processing for heart rate measurement 心率测量信号处理的自适应方法
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4446018
Le Hao, Zheying Li, Hao Jiang
{"title":"Adaptive method on signal processing for heart rate measurement","authors":"Le Hao, Zheying Li, Hao Jiang","doi":"10.1109/ISPACS.2007.4446018","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4446018","url":null,"abstract":"An adaptive method on signal processing for heart rate measuring SoC (System on a chip) was designed in this paper. The digital filter is the basic measure to process the physiological signal. This paper adopts adaptive algorithm and wavelet transform theory to design kinds of digital adaptive filters- adaptive noise cancellation filter and wavelet transform filter to process the corresponding noises. At last, a good result was obtained.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124691084","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
Eye localization based on hue image processing 基于色相图像处理的人眼定位
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445991
Wentao Wang, Chao Xu, Hong Shen
{"title":"Eye localization based on hue image processing","authors":"Wentao Wang, Chao Xu, Hong Shen","doi":"10.1109/ISPACS.2007.4445991","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445991","url":null,"abstract":"A new eye localization method based on hue image processing is proposed in this paper. First, face extraction method based on skin-color information is improved by forehead skin localization and lip detection. Second, vertical projection in hue image is used instead of horizontal projection in intensity or edge images in other works. At last, the eye center is located by a peak value extraction algorithm. This method is time efficient as no gradient or other time consuming computations are used. The experiment result shows that a 320times240 color image needs 8 ms to locate the centers of both eyes on a PC with an AMD Sempron TM 2500+ at 2.25 GHz CPU. The average detection rate is about 95.25%.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124241074","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
Color removal method based on signed color distance and nonlinear projection 基于符号颜色距离和非线性投影的颜色去除方法
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445836
G. Tanaka, N. Suetake, E. Uchino
{"title":"Color removal method based on signed color distance and nonlinear projection","authors":"G. Tanaka, N. Suetake, E. Uchino","doi":"10.1109/ISPACS.2007.4445836","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445836","url":null,"abstract":"In the typical photo re-touching software, in order to convert a color image into a monochrome one, only luminance components of the color image are extracted, and are used to represent the monochrome image. This luminance extraction is useful and enough for obtaining a monochrome image in most cases. However, saliencies of the image included only in the chrominance components are not preserved at all. In this study, we propose a new color removal method that takes difference of the chrominance into account in addition to luminance of an image. The effectiveness of the proposed method is verified by applying it to some images.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121396631","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
Predictive mode reduction and selective pixel matching based motion estimation algorithm for H.264 基于预测模式减少和选择性像素匹配的H.264运动估计算法
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445930
H. Zeng, C. Cai, S. Mitra
{"title":"Predictive mode reduction and selective pixel matching based motion estimation algorithm for H.264","authors":"H. Zeng, C. Cai, S. Mitra","doi":"10.1109/ISPACS.2007.4445930","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445930","url":null,"abstract":"Motion estimation (ME) algorithm is used in H.264 to improve the coding efficiency. However, it results in very high computational load. In this paper, a novel fast ME algorithm with reduced computational complexity is proposed. First, a predictive mode reduction method is used to free the encoder from checking the small block types in the homogeneous region. Second, a selective pixel matching scheme and a simplified optimal reference frame discrimination strategy are employed to find the best full-pixel motion vector. Finally, direction based selection rule is utilized to diminish the searching points in sub-pixel ME process. Experimental results have shown that the proposed algorithm achieves a reduction of 87% ME process time on average, while incurring only 0.033 dB loss in PSNR and 0.56% increment on the total bit rate compared with that of exhaustive ME process, which is a default approach set in the JM reference software.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114114345","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
A novel approach in network coding based on shuffle coding 一种基于shuffle编码的网络编码新方法
2007 International Symposium on Intelligent Signal Processing and Communication Systems Pub Date : 2007-11-01 DOI: 10.1109/ISPACS.2007.4445810
Wang Wei, Yu Li, Zhu Guangxi, Dai Rui
{"title":"A novel approach in network coding based on shuffle coding","authors":"Wang Wei, Yu Li, Zhu Guangxi, Dai Rui","doi":"10.1109/ISPACS.2007.4445810","DOIUrl":"https://doi.org/10.1109/ISPACS.2007.4445810","url":null,"abstract":"Network coding, a new technology that can optimize the usage of network resources is developing rapidly nowadays. In the traditional scheme of network coding, the linear combination with coefficients of bits is used in the coding process. In this paper, we design another coding approach on the basis of random network coding - shuffle coding, which can sharply decline the complexity of the coding process and improve the encoding rate of the coding scheme. In shuffle coding, shifting operation is used instead of coefficients combination compared to the normal network coding, with its operating objects are the data units not the bits. We present a detailed scheme of shuffle coding in the paper, and simulate the whole encoding process on a channels model for evaluation. This kind of network coding is proved to be effective, flexible and advanced, which can be used in large-scale networks in the future.","PeriodicalId":220276,"journal":{"name":"2007 International Symposium on Intelligent Signal Processing and Communication Systems","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127879047","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
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