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2006 7th International Symposium on Antennas, Propagation & EM Theory最新文献

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An Improved ESPRIT-like Algorithm for Coherent Signal and Its Application for 2-D DOA Estimation 一种改进的类esprit相干信号估计算法及其在二维DOA估计中的应用
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353378
Liguo Liu, Yibing Gai, Haisong Wang, Guowen Ding
{"title":"An Improved ESPRIT-like Algorithm for Coherent Signal and Its Application for 2-D DOA Estimation","authors":"Liguo Liu, Yibing Gai, Haisong Wang, Guowen Ding","doi":"10.1109/ISAPE.2006.353378","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353378","url":null,"abstract":"The direction-of-arrival (DOA) estimation for coherent signal is always an important aspect, because it will cause rank loss of the spatial covariance matrix. The conventional solution is to use smoothing algorithm, but recently a new technique is proposed, which reconstructs the spatial covariance matrix in Toeplitz pattern and no longer be affected by coherency. In this paper, an improved algorithm based the new technique is proposed, which can reduce the computational burden. Finally, a 2-D coherent DOA estimation method using 3-aixs crossed array is suggested. Simulation results are presented to verify the efficacy.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122129638","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
Ad-hoc routing Protocol-based Ubiquitous Network System In the Hospital Environment 医院环境下基于Ad-hoc路由协议的泛在网络系统
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353291
Jungil Heo, Wooshik Kim
{"title":"Ad-hoc routing Protocol-based Ubiquitous Network System In the Hospital Environment","authors":"Jungil Heo, Wooshik Kim","doi":"10.1109/ISAPE.2006.353291","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353291","url":null,"abstract":"AODV is one of the various routing protocol on ad-hoc networks. This paper analyzes information about the user who moves from among the multi techniques which composes the ubiquitous environment, and proposes about the network configuration and management to execute ubiquitous system. In this paper, we propose efficient method that has AODV protocol advantage and the property of power efficiency and reliable data transmission in the hospital or home environment. Our proposed method uses the mobile nodes which have the sensor and the role and an operational process of each system configuration is described in this paper.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116849382","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
Size-reduced Fractal-shaped Dual Planar PBG Microstrip Low-pass Filter 小尺寸分形双平面PBG微带低通滤波器
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353441
Wen-ling Chen, Guangming Wang, Yi-na Qi, Jian-gang Liang
{"title":"Size-reduced Fractal-shaped Dual Planar PBG Microstrip Low-pass Filter","authors":"Wen-ling Chen, Guangming Wang, Yi-na Qi, Jian-gang Liang","doi":"10.1109/ISAPE.2006.353441","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353441","url":null,"abstract":"In this paper, a novel high-performance size-reduced fractal-shaped dual planar photonic bandgap (DP-PBG) microstrip low-pass filter is proposed. By employing fractal-shaped geometry of the microstripline, the physical size of the proposed structure reduced significantly compared with the size of the conventional structures, and by employing dual plane arrangement and the square and linear Chebyshev tapering techniques, the proposed structure achieves wideband with high attenuation in the stopband and low ripple level in the passband. The structure was fabricated and tested, and the measured results are found in good agreement with the simulated results.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124097934","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
Broadband Robust Adaptive Beamforming in the Presence of Correlated interferences and DOA uncertainties 存在相关干扰和DOA不确定性的宽带鲁棒自适应波束形成
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353380
Lin Jing-ran, Peng Qicong, Shao Huai-zong, Ju Tai-liang
{"title":"Broadband Robust Adaptive Beamforming in the Presence of Correlated interferences and DOA uncertainties","authors":"Lin Jing-ran, Peng Qicong, Shao Huai-zong, Ju Tai-liang","doi":"10.1109/ISAPE.2006.353380","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353380","url":null,"abstract":"A novel method of broadband robust adaptive beamforming is proposed in this paper to deal with the signal cancellation caused by correlated interferences and DOA uncertainties. To achieve this goal, the classic techniques of spectral averaging and diagonal loading are integrated into the beamforming, with the former aiming at decorrelation and the latter at robustness against DOA uncertainties. Moreover, the optimal loading is selected based on worst-case performance optimization and a simple closed-form solution to it is suggested after some approximations. Besides its simplicity and low computational cost, this analytical solution reveals how different factors affect the optimal loading. Compared with many relevant methods, the proposed one achieves better robustness against DOA uncertainties, while suppressing both correlated and uncorrelated interferences effectively. Its excellent performance is confirmed via a number of numerical examples.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"274 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125837059","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
On the Use of LHM Lens for Near-Field Target Detection and Imaging LHM透镜在近场目标探测与成像中的应用研究
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353566
G. Wang, Jieran Fang, Xiaoting Dong
{"title":"On the Use of LHM Lens for Near-Field Target Detection and Imaging","authors":"G. Wang, Jieran Fang, Xiaoting Dong","doi":"10.1109/ISAPE.2006.353566","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353566","url":null,"abstract":"Flat left-handed material (LHM) lens provides new solution to high resolution near-field microwave target detection and imaging. By scanning the transmitting and receiving antenna pair (T-R pair) to focus microwave onto target on the other side of LHM lens and recording the intensity distribution of microwave field backscattered from the target and refocused by the LHM lens, the image of the target under detection can be formed simply by screening the recorded backscattered fields. Numerical simulations demonstrate that the scanning of T-R pair will provide higher imaging resolution than the focusing and refocusing resolution of flat LHM lens.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128571713","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
Piecewise Integration for Conformal FDTD Method to Reduce Staircasing Errors 保形时域有限差分法的分段积分减小阶梯误差
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353542
Yan Zhang, Shan-wei Lu
{"title":"Piecewise Integration for Conformal FDTD Method to Reduce Staircasing Errors","authors":"Yan Zhang, Shan-wei Lu","doi":"10.1109/ISAPE.2006.353542","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353542","url":null,"abstract":"Attention is focused on a new conformal FDTD method. The contour-path value of the electric field component can be obtained more accurately by the piecewise integration. Several examples are simulated to demonstrate the proposed method. Numerical results show that the PI-CFDTD method provides increased accuracy and stability over the conventional CFDTD method.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127028328","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 Plane Wave Scattering by a LHM Anisotropic Uniaxial-coated Conducting Sphere LHM各向异性单轴涂层导电球的平面波散射
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353550
Y. Geng, Lewei Li, Jian Wu
{"title":"A Plane Wave Scattering by a LHM Anisotropic Uniaxial-coated Conducting Sphere","authors":"Y. Geng, Lewei Li, Jian Wu","doi":"10.1109/ISAPE.2006.353550","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353550","url":null,"abstract":"On the basis of spherical vector wave functions in uniaxial anisotropic left-handed materials (LHMs) and the first, second, third and fourth spherical vector wave functions in uniaxial anisotropic LHMs satisfy the same differential equation, the electromagnetic fields in uniaxial anisotropic LHMs can be expressed as an addition of the first and second spherical vector wave functions in uniaxial anisotropic LHMs. Applying the boundary conditions of electromagnetic fields in the interface between LHMs and free space, in the surface of conducting sphere, the expansion coefficients of electromagnetic field in uniaxial anisotropic LHMs and scattering field in free space can be derived, and then the radar section cross (RCS) of a plane wave scattering by a LHMs anisotropic uniaxial-coated conducting sphere. Some numerical results are given in this paper.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"02 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129959554","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
Investigation on the Backscattering from the Time-varying Oceanic Surface with Consideration of Multiple-scattering 考虑多重散射的时变海洋表面后向散射研究
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353570
Ren Yuchao, G. Lixin
{"title":"Investigation on the Backscattering from the Time-varying Oceanic Surface with Consideration of Multiple-scattering","authors":"Ren Yuchao, G. Lixin","doi":"10.1109/ISAPE.2006.353570","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353570","url":null,"abstract":"A multiple-scattering method is formulated to calculate the backscattering from time-varying dielectric oceanic surface. The theoretical prediction is compared with the experimental data, and reasonably good agreement is obtained. Much attention is paid to discuss the amplitude distribution of the scattered field when the surface varies in a random way, and these theoretical results are compared with the classic distributions to find the best fitting.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131027493","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 New Method of Radar Imaging Bases on GRECO 基于GRECO的雷达成像新方法
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353569
Guo Dandan, Su Donglin, Liu Yan
{"title":"A New Method of Radar Imaging Bases on GRECO","authors":"Guo Dandan, Su Donglin, Liu Yan","doi":"10.1109/ISAPE.2006.353569","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353569","url":null,"abstract":"Inverse synthetic aperture radar (ISAR) is a way of radar imaging, but the recognition of this way is not very well. This paper presents a different way of radar imaging, which bases on GRECO. This paper compares the two ways, and the conclusion is that the new way is better than the ISAR imaging in shape of its recognition, and new way imaging could be an assistant imaging to the ISAR imaging.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130681987","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
Study on High Gain Patch Antenna with Metamaterial Cover 具有超材料覆盖的高增益贴片天线研究
2006 7th International Symposium on Antennas, Propagation & EM Theory Pub Date : 2006-10-01 DOI: 10.1109/ISAPE.2006.353564
Z. Weng, Nai‐biao Wang, Y. Jiao
{"title":"Study on High Gain Patch Antenna with Metamaterial Cover","authors":"Z. Weng, Nai‐biao Wang, Y. Jiao","doi":"10.1109/ISAPE.2006.353564","DOIUrl":"https://doi.org/10.1109/ISAPE.2006.353564","url":null,"abstract":"A new method to improve the gain of patch antenna with metamaterial composed of ring aperture lattice is presented. A comparison between the conventional patch antenna and the new metamaterial patch antenna is given. The experimental results show that this method is effective and metamaterial structure can realize congregating the radiation energy, so the gain of the antenna with metamaterial can greatly increase compared with the conventional one.","PeriodicalId":113164,"journal":{"name":"2006 7th International Symposium on Antennas, Propagation & EM Theory","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132374810","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: 19
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