Progress in Electromagnetics Research-Pier最新文献_第4页

TUNING ELECTROMAGNETICALLY INDUCED TRANSPARENCY OF SUPERCONDUCTING METAMATERIAL ANALYZED WITH EQUIVALENT CIRCUIT APPROACH 用等效电路方法分析了超导超材料电磁感应透明度的调谐

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/pierm19122101

Yonggang Zhang, Chun-Mao Li, X. Tu

引用次数: 4

THE MULTILEVEL FAST PHYSICAL OPTICS METHOD FOR CALCULATING HIGH FREQUENCY SCATTERED FIELDS 计算高频散射场的多能级快速物理光学方法

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/pier20071203

Zhiyang Xue, Yu Mao Wu, W. Chew, Yaqiu Jin, A. Boag

引用次数: 4

RESEARCH STATUS AND PROSPECTS OF ORBITAL ANGULAR MOMENTUM TECHNOLOGY IN WIRELESS COMMUNICATION 轨道角动量技术在无线通信中的研究现状与展望

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/pier20091104

Feng Zheng, Yijian Chen, Siwei Ji, Gaoming Duan

{"title":"RESEARCH STATUS AND PROSPECTS OF ORBITAL ANGULAR MOMENTUM TECHNOLOGY IN WIRELESS COMMUNICATION","authors":"Feng Zheng, Yijian Chen, Siwei Ji, Gaoming Duan","doi":"10.2528/pier20091104","DOIUrl":"https://doi.org/10.2528/pier20091104","url":null,"abstract":"It becomes more and more challenging to satisfy the long-term demand of transmission capacity in wireless networks if we limit our research within the frame of traditional electromagnetic wave characteristics (e.g., frequency, amplitude, phase and polarization). The potential of orbital angular momentum (OAM) for unleashing new capacity in the severely congested spectrum of commercial communication systems is generating great interest in wireless communication field. The OAM vortex wave/beam has different topological charges, which are orthogonal to each other. It provides a new way for multiplexing in wireless communications. Electromagnetic wave or synthetic beam carrying OAM has a spiral wavefront phase structure, which may provide a new degree of freedom or better orthogonality in spatial domain. In this paper, we introduce the fundamental theory of OAM. Then, OAM generation and reception methods are equally demonstrated. Furthermore, we present the latest development of OAM in wireless communication. We further discuss the controversial topic “whether OAM provides a new degree of freedom” and illustrate our views on the relationship between OAM and MIMO. Finally, we suggest some open research directions of OAM.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"30 1","pages":"113-132"},"PeriodicalIF":6.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75077125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

A COMBINED ACTIVE AND PASSIVE METHOD FOR THE REMOTE SENSING OF ICE SHEET TEMPERATURE PROFILES 一种主动式与被动式相结合的冰盖温度遥感方法

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/pier20030601

Haokui Xu, L. Tsang, J. Johnson, K. Jezek, Jie-Bang Yan, P. Gogineni

{"title":"A COMBINED ACTIVE AND PASSIVE METHOD FOR THE REMOTE SENSING OF ICE SHEET TEMPERATURE PROFILES","authors":"Haokui Xu, L. Tsang, J. Johnson, K. Jezek, Jie-Bang Yan, P. Gogineni","doi":"10.2528/pier20030601","DOIUrl":"https://doi.org/10.2528/pier20030601","url":null,"abstract":"The Ultra-Wideband Software defined microwave radiometer (UWBRAD) was developed to probe internal ice sheet temperatures using 0.5–2 GHz microwave radiometry. The airborne brightness temperature data of UWBRAD show a significant reduction due to reflections of surface layering of density fluctuations making difficult the retrieval of subsurface temperature in the kilometer range of depth. Such reflections can be measured by the ultra-wideband radar in the same frequency range suggesting a combined active and passive remote sensing of polar ice sheets. In this paper, we develop a coherent reflectivity model for both ice sheet thermal emission and backscattering. Maxwell equations are used to calculate the coherent reflections from the cap layers, and the WKB approximation is used to calculate the transmission for the slowly varying profile below the cap layers. Results are then shown to demonstrate the use of radar measurements to compensate reflection effects on brightness temperatures. It is shown that the reflections corrected brightness temperature is directly related to the physical temperature and absorption profile making possible the retrieval of subsurface temperature profile with multi-frequency measurements.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"1 1","pages":"111-126"},"PeriodicalIF":6.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76111055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

GENERATING PICOSECOND PULSES WITH THE LARGEST NUMBER OF LASING WAVELENGTHS BY AN ALL-FIBER OPTICAL PARAMETRIC OSCILLATOR 利用全光纤参量振荡器产生具有最大激光波长数的皮秒脉冲

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2020-01-01 DOI: 10.2528/PIER20011301

Xiaogang Jiang, Feihong Chen, Y. Lu, Taoce Yin, Sailing He

引用次数: 4

A reconfigurable broadband dual-mode dual-polarized antenna for sectorial/omnidirectional mobile base stations 用于扇区/全向移动基站的可重构宽带双模双极化天线

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2018-07-26 DOI: 10.2528/PIER18050206

Ahmed Alieldin, Yi Huang, S. Boyes, M. Stanley

引用次数: 6

Radar Imaging System for in-Service Wind Turbine Blades Inspections: Initial Results from a Field Installation at a 2 MW Wind Turbine 用于在役风力涡轮机叶片检查的雷达成像系统:2兆瓦风力涡轮机现场安装的初步结果

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2018-06-04 DOI: 10.2528/PIER18021905

J. Moll, J. Simon, Moritz Malzer, V. Krozer, D. Pozdniakov, R. Salman, Manfred Durr, Michael Feulner, A. Nuber, H. Friedmann

{"title":"Radar Imaging System for in-Service Wind Turbine Blades Inspections: Initial Results from a Field Installation at a 2 MW Wind Turbine","authors":"J. Moll, J. Simon, Moritz Malzer, V. Krozer, D. Pozdniakov, R. Salman, Manfred Durr, Michael Feulner, A. Nuber, H. Friedmann","doi":"10.2528/PIER18021905","DOIUrl":"https://doi.org/10.2528/PIER18021905","url":null,"abstract":"This paper presents an imaging radar system for structural health monitoring (SHM) of wind turbine blades. The imaging radar system developed here is based on two frequency modulated continuous wave (FMCW) radar sensors with a high output power of 30 dBm. They have been developed for the frequency bands of 24,05 GHz-24,25 GHz and 33.4 GHz-36.0 GHz, respectively. Following the successful proof of damage detection and localization in laboratory conditions, we present here the installation of the sensor system at the tower of a 2 MW wind energy plant at 95 m above ground. The realization of the SHM-system will be introduced including the sensor system, the data acquisition framework and the signal processing procedures. We have achieved an imaging of the rotor blades using inverse synthetic aperture radar techniques under changing environmental and operational condition. On top of that, it was demonstrated that the front wall and back wall radar echo can be extracted from the measured signals demonstrating the full penetration of wind turbine blades during operation.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"90 1","pages":"51-60"},"PeriodicalIF":6.7,"publicationDate":"2018-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79750324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

CMOS LOW NOISE AMPLIFIER DESIGN FOR MICROWAVE AND MMWAVE APPLICATIONS (INVITED REVIEW) 用于微波和毫米波应用的Cmos低噪声放大器设计(邀请审查)

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2018-04-05 DOI: 10.2528/pier18012410

Xue Jun Li, Yue Ping Zhang

引用次数: 6

Coarse-to-Fine Accurate Registration for Airborne SAR Images Using SAR-Fast and DSP-LATCH 基于SAR- fast和DSP-LATCH的机载SAR图像粗到精精确配准

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2018-01-01 DOI: 10.2528/PIER18070801

Huai Yu, Wen Yang, Yan Liu

{"title":"Coarse-to-Fine Accurate Registration for Airborne SAR Images Using SAR-Fast and DSP-LATCH","authors":"Huai Yu, Wen Yang, Yan Liu","doi":"10.2528/PIER18070801","DOIUrl":"https://doi.org/10.2528/PIER18070801","url":null,"abstract":"Synthetic Aperture Radar (SAR) image registration is to establish reliable correspondences among the images of the same scene. It is a challenging problem to register the airborne SAR images for the instability of airborne SAR systems and the lack of appropriate geo-reference data. Besides, techniques for registering satellite-based SAR images relying on rigorous SAR geocoding cannot be directly applied to airborne SAR images. To address this problem, we present a coarse-to-fine registration method for airborne SAR images by combining SAR-FAST (Features from Accelerated Segment Test) feature detector and DSP-LATCH (Domain-Size Pooling of Learned Arrangements of Three patCH) feature descriptor, which only relies on the gray level intensity of SAR data. More precisely, we first apply SAR-FAST, which is an adapted version of FAST for analyzing SAR images, to detect corners with high accuracy and low computational complexity. To reduce the disturbance of speckle noise as well as to achieve efficient and discriminative feature description, we further propose an improved descriptor named DSP-LATCH to describe the features, which combines the Domain-size Pooling scheme of DSP-SIFT (Scale-Invariant Feature Transform) and the idea of comparing triplets of patches rather than individual pixel values of LATCH. Finally, we conduct a coarse-to-fine strategy for SAR image registration by employing binary feature matching and the Powell algorithm. Compared with the existing feature based SAR image registration methods, e.g., SIFT and its variants, our method yields more reliable matched feature points and achieves higher registration accuracy. The experimental results on different scenes of airborne SAR images demonstrate the superiority of the proposed method in terms of robustness and accuracy.","PeriodicalId":54551,"journal":{"name":"Progress in Electromagnetics Research-Pier","volume":"198 1","pages":"89-106"},"PeriodicalIF":6.7,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80013382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A New Adaptive Tracking Algorithm for Near-Space Hypersonic Target 一种新的近空间高超声速目标自适应跟踪算法

IF 6.7 1区计算机科学

Progress in Electromagnetics Research-Pier Pub Date : 2018-01-01 DOI: 10.2528/PIERM18070102

Xiangke Guo, Changyun Liu, Fu Qiang, Wang Gang

引用次数: 1