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2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)最新文献

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COAMPS Refractivity Forecast Evaluation Using LATPROP- UWB Propagation Loss Data 利用LATPROP- UWB传输损耗数据评价COAMPS折射率预报
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602731
Luyao Xu, C. Yardim, R. Burkholder, T. Haack, Qing Wang
{"title":"COAMPS Refractivity Forecast Evaluation Using LATPROP- UWB Propagation Loss Data","authors":"Luyao Xu, C. Yardim, R. Burkholder, T. Haack, Qing Wang","doi":"10.1109/USNC-URSI.2018.8602731","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602731","url":null,"abstract":"Lower Atmospheric Propagation Ultra Wide Band (LATPROP-UWB) system is deployed during Coupled Air-Sea Processes and Electromagnetic Ducting Research (CASPER) East campaign to measure range-dependent propagation loss for 2–40 GHz. Couple Ocean/Atmosphere Mesoscale Prediction System (COAMPS) is used to obtain refractivity forecasts during CASPER East. Range-dependent forecast refractivity profiles are used with a parabolic wave equation code to get simulated propagation loss. The simulated and measured propagation loss are compared to compute COAMPS forecasting accuracy.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124843644","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
Brightness Temperature from Very Lossy Medium 极损耗介质的亮度温度
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602598
Zhi-Hong Lai, Jean‐Fu Kiang
{"title":"Brightness Temperature from Very Lossy Medium","authors":"Zhi-Hong Lai, Jean‐Fu Kiang","doi":"10.1109/USNC-URSI.2018.8602598","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602598","url":null,"abstract":"The brightness temperature from moistured soil with a flat surface is computed by defining near-field bistatic transmission coefficients (BTCs) and modifying the Planck's law for lossy medium. The efficacy of the proposed methods are verified by simulations and comparison with literatures.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123852154","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
FFT-Accelerated Near-Field Scattering Evaluation fft加速近场散射评估
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602819
J. Massey, A. Yılmaz
{"title":"FFT-Accelerated Near-Field Scattering Evaluation","authors":"J. Massey, A. Yılmaz","doi":"10.1109/USNC-URSI.2018.8602819","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602819","url":null,"abstract":"An FFT-based algorithm is presented for rapidly post-processing the integral-equation based solution of scattering problems to evaluate the fields at an arbitrary number of nearby points. The proposed algorithm uses a similar approach to the adaptive integral method (AIM) but contends with the fact that the fields are not Galerkin tested with basis functions but instead point tested. It reduces the computational costs compared to the brute-force method, especially when the number of observer points is large.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123952413","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
Influence of Inhomogeneity in a Dielectric-Loaded Slot in an Infinite Thick Metallic Shield on Higher-Order Mode Resonances 无限厚金属屏蔽中介电加载槽的非均匀性对高阶模共振的影响
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602704
Abdulaziz H. Haddab, E. Kuester
{"title":"Influence of Inhomogeneity in a Dielectric-Loaded Slot in an Infinite Thick Metallic Shield on Higher-Order Mode Resonances","authors":"Abdulaziz H. Haddab, E. Kuester","doi":"10.1109/USNC-URSI.2018.8602704","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602704","url":null,"abstract":"Extraordinary transmission through an inhomogeneous dielectric loaded slot in a an infinite metallic shield of finite thickness is demonstrated. We show that the higher order (Fano) transmission resonances' locations and magnitudes can be controlled by introducing a region of different dielectric constant within the slot.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126211536","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
In Situ Antenna Far Field Estimation Based on Equivalent Sources 基于等效源的原位天线远场估计
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602896
N. Bourey, M. Darces, M. Hélier
{"title":"In Situ Antenna Far Field Estimation Based on Equivalent Sources","authors":"N. Bourey, M. Darces, M. Hélier","doi":"10.1109/USNC-URSI.2018.8602896","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602896","url":null,"abstract":"This paper deals with a near-field to far-field transformation, based on source identification, which allows to predict the radiation of antennas in their operating environment. It is focused on an experimental set-up which carries out the near-field measurements of UHF antennas above the ground. The predicted far-field is compared to the one calculated with a commercial electromagnetic software.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125018834","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
Weapon Target Assignment Based on Improved Artificial Fish Swarm Algorithm 基于改进人工鱼群算法的武器目标分配
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602636
Fang Ye, Shijia Shao, Yuan Tian
{"title":"Weapon Target Assignment Based on Improved Artificial Fish Swarm Algorithm","authors":"Fang Ye, Shijia Shao, Yuan Tian","doi":"10.1109/USNC-URSI.2018.8602636","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602636","url":null,"abstract":"Weapon-Target Assignment (WTA) problem is the key of air defense command and control. Therefore, it is an urgent problem to complete the assignment quickly and efficiently. In this paper, an improved artificial fish swarm algorithm is proposed to improve assignment rate. Based on artificial fish swarm algorithm (AFSA), particle swarm optimization (PSO) is introduced to change the individual visual of artificial fish, and genetic operator is added to avoid the local extremum trap. The proposed algorithm is validated by the concrete cooperative air defense examples. The simulation results show that the algorithm improved the computational accuracy and the rate of convergence in solving weapon-target assignment problem in air defense.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125969519","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
Effects of Assimilation of Surface Temperature Data on the Evaporation Duct and Propagation Predictions 地表温度资料同化对蒸发管道和传播预报的影响
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602654
T. Haack, T. Holt, D. Tyndall, B. Granger, Eric Justice
{"title":"Effects of Assimilation of Surface Temperature Data on the Evaporation Duct and Propagation Predictions","authors":"T. Haack, T. Holt, D. Tyndall, B. Granger, Eric Justice","doi":"10.1109/USNC-URSI.2018.8602654","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602654","url":null,"abstract":"The evaporation duct is an ubiquitous feature over the world's oceans responsible for trapping electromagnetic energy from surface emitters. The height of the evaporation duct (EDH) is often used to determine if ship-board radars and communications systems will be adversely affected by the environment. EDHs typically range from 2 to 40 meters and can vary substantially with surface stability, wind speed, and low-level humidity, particularly within 100 km from shore where temporal and spatial variations in the environment are the norm. A study was conducted to measure sea surface and air temperature from a specially instrumented ocean glider during a 30-day deployment off of San Diego, California. Improvements to the surface layer and evaporation duct modeling resulted from assimilation of the glider measurements into a numerical weather prediction (NWP) model. We show the impact of these data on the prediction of electromagnetic energy propagating from a surface radio frequency (RF) sensor.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"102 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130494675","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
Active Countermeasure Using EMI Honeypot against TEMPEST Eavesdropping in High-Speed Signalling 电磁干扰蜜罐对高速信号中TEMPEST窃听的主动对抗
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602854
Kai Yao, Shengchang Lan, Meng Xia, Lijia Chen
{"title":"Active Countermeasure Using EMI Honeypot against TEMPEST Eavesdropping in High-Speed Signalling","authors":"Kai Yao, Shengchang Lan, Meng Xia, Lijia Chen","doi":"10.1109/USNC-URSI.2018.8602854","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602854","url":null,"abstract":"Current development in TEMPEST and other eavesdropping strategies becomes a critical threat to the information security. To enhance the countermeasures of eavesdropping the electromagnetic radiation leakage in high-speed signalling such as computer monitors and other high-speed peripherals, this paper proposed an active countermeasure solution by interfering the TEMPEST receiver with a honeypot radiation source. Instead of passive noise jamming methods, this honeypot strategy used the multi-carrier modulation to hide the leakage and transmit a pseudo high -speed signal blended with information baits which may lead the eavesdropper uncovered. This system was implemented on a software defined radio platform and verified to be a prospecting application in future information security.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131265045","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
The Front-End Design of a Hydrogen Spectral Line Receiver for Micro Satellite Navigation 微型卫星导航氢谱线接收机前端设计
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602605
Kai Yao, Shengchang Lan, Chaoqun Tan, Guodong Xu, Meng Xia, Lijia Chen
{"title":"The Front-End Design of a Hydrogen Spectral Line Receiver for Micro Satellite Navigation","authors":"Kai Yao, Shengchang Lan, Chaoqun Tan, Guodong Xu, Meng Xia, Lijia Chen","doi":"10.1109/USNC-URSI.2018.8602605","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602605","url":null,"abstract":"Regarded as a promising source for future spacecraft navigation, the change in the energy state of neutral hydrogen atoms can provide a super stable electromagnetic radiation in the microwave region. Inspired by this concept, this paper specified the instrumental development of designing the front-end of a Hydrogen Spectral Line(HSL) Receiver receiver to support the micro-satellite navigation in space. The design included a array of 37 copper patches aligned in hexagon. Each patch was fed by microstrip lines to connect a 2-stage low noise amplifier. The a digital phase shifter was yielded to implement the phase control and electrically beam forming. The numerical simulation result showed that this front-end would provide a total 31.7dB gain and beam scanning angle between ±40 degree.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122201928","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 of Melting Layer for Convective Rain in Tropical Region 热带地区对流降雨融化层的研究
2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Pub Date : 2018-07-01 DOI: 10.1109/USNC-URSI.2018.8602687
F. Yuan, Y. Lee, Shilpa Manandhar, Y. S. Meng
{"title":"Investigation of Melting Layer for Convective Rain in Tropical Region","authors":"F. Yuan, Y. Lee, Shilpa Manandhar, Y. S. Meng","doi":"10.1109/USNC-URSI.2018.8602687","DOIUrl":"https://doi.org/10.1109/USNC-URSI.2018.8602687","url":null,"abstract":"Convective rain occurs quite often in tropical region, however, very little is known of the melting layer for convective rain. In this paper, the S band dual-polarization radar data are processed to identify the convective rain melting layer in the tropical country of Singapore. By studying and isolating the convective rain region, it is found out that among the three radar measurements of reflectivity, differential reflectivity, and cross-correlation coefficient, the crosscorrelation coefficient parameter is the most suitable indicator for convective rain melting layer detection. The reflectivity can be used to differentiate between stratiform rain and convective rain.","PeriodicalId":203781,"journal":{"name":"2018 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)","volume":"11 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131740631","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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