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Research on Development and Analysis of Miniaturized Antenna for GNSS High-precision Applications

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Research on Development and Analysis of Miniaturized Antenna...

Improvement of orbit determination for geostationary satellites with VLBI tracking

第十三届中国卫星导航年会

作者： Ji Guo Tian Wang Weiguang Gao Xia Chen shanbin shi Kai Wang Beijing Institute of Tracking and Telecommunication Technology Beijing Orient Institute of Measurement and Test

As an essential base component, thehigh-precision antenna has an important impact on the quality of the signal. The performance ofhigh-precision antenna is a key factor in determining the performance indicators of satellite navigation terminals. This article proposed small-scalarized antennas for high-precision applications. Toward the flat antenna and cylindrical antenna, the study on the miniaturization of multi-band active circuits is introduced. It solved contradictions between multi-band combination and antenna size miniaturization. Through simulation and analysis, we found a composite radiator is formed by adding the coupling ring around the double layer 3 D microstrip antenna. And the stereo radiator is formed, with the coupling ring around the top microstrip antenna linked with the patch surface of the underlying 3 D microstrip antenna. Those can effectively broaden the antenna gain of 3 dB beam width（GBW）, and axial ratio of 3 dB beam width（ARBW）, with increasing the low elevation gain. Accordingly, thoseantennas can provide good gain properties under smaller dimensions.

关键词： High-precision GNSS Miniaturized antenna Gain

来源： cnki会议评论

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Chinese Science Bulletin 2011年第26期56卷 2765-2772页

作者： HUANG Yong HU XiaoGong ZHANG XiuZhong JIANG DongRong GUO Rui WANG Hong shi shanbin Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Beijing Global Information Application and Development Center Beijing 100094 China Beijing Institute of Tracking and Telecommunications Technology Beijing 100094 China

China’s COMPASS satellite navigation system consists of five or more geostationary (GEO) satellites.The roles of GEO satellites are to improve the regional user’s positioning accuracy and provide the continuous Radio Determination Satellite Service.The motion of GEO satellites relative to a ground tracking station is almost fixed,and regular orbit maneuvers are necessary to maintain the satellites’ allocated positions above the equator.These features present difficulties in precise orbit determination (POD).C-band ranging via onboard transponders and the L-band pseudo-ranging technique have been used in the COMPASS system.This paper introduces VLBI tracking,which has been successfully employed in the Chinese lunar exploration programs Chang’E-1 and Chang’E-2,to the POD of GEO satellites.In contrast to ranging,which measures distances between a GEO satellite and an observer,VLBI is an angular measurement technique that constrains the satellite’s position errors perpendicular to the satellite-to-observer direction.As a demonstration,the Chinese VLBI Network organized a tracking and orbit-determination experiment for a GEO navigation satellite lasting 24 h.This paper uses the VLBI delay and delay-rate data,in combination with C-band ranging data,to determine the GEO satellite’s orbit.The accuracies of the VLBI delay and delay rate data are about 3.6 ns and 0.4 ps/s,respectively.Data analysis shows that the VLBI data are able to calibrate systematic errors of the C-band ranging data,and the combination of the two observations improves orbit prediction accuracy with short-arc data,which is important for orbital recovery after maneuvers of GEO satellites.With the implementation of VLBI2010,it is possible for VLBI to be applied in the COMPASS satellite navigation system.

关键词：地球静止卫星地面跟踪站 VLBI 轨道测定北斗卫星导航系统位置误差定位精度测量技术

Pt/ZSM-22催化剂酸性原位调控及加氢异构性能

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化工学报 2023年第10期74卷 4164-4172页

作者：高善彬李梦晨于宏悦沈雨歌乔亮迟克彬史得军中国石油天然气股份有限公司石油化工研究院北京102206

采用水热法合成ZSM-22分子筛并制备催化剂载体,通过负载贵金属Pt,制备出高分散Pt/H-ZSM-22加氢异构催化剂。以n-C_(12)为原料,考察催化剂的加氢异构性能,在正构烷烃加氢异构反应过程中,通过在原料油中引入一定量含氮物种二正丁胺,使其... 详细信息

采用水热法合成ZSM-22分子筛并制备催化剂载体,通过负载贵金属Pt,制备出高分散Pt/H-ZSM-22加氢异构催化剂。以n-C_(12)为原料,考察催化剂的加氢异构性能,在正构烷烃加氢异构反应过程中,通过在原料油中引入一定量含氮物种二正丁胺,使其在催化剂酸性位上发生化学吸附,对催化剂酸性进行原位调控,考察催化剂性能变化。结果表明,随着反应温度提高,酸性调控后的Pt/N-ZSM-22液体收率下降缓慢,且转化率达到85%以上时,Pt/N-ZSM-22的异构选择性比Pt/H-ZSM-22高出约3个百分点。酸性调控后的Pt/N-ZSM-22可通过提高反应温度进行含氮物种脱附,恢复催化剂酸位点的可接近性。采用酸性调控后的催化剂用于以加氢裂化尾油为原料的加氢异构反应,基础油收率均较调控前催化剂有明显提高。

关键词：分子筛加氢异构催化剂酸性调控选择性润滑油基础油

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润滑油基础油分子表征方法及其黏度性质预测

石油炼制与化工 2022年第9期53卷 50-55页

作者：陈菲王艳斌张婧元史得军迟克彬高善彬中国石油石油化工研究院北京102206

采用气相色谱/场电离飞行时间质谱(GC/FI TOF MS)对润滑油基础油进行分子表征。依据精确相对分子质量和质谱图平均丰度分别进行定性和定量分析,可简单快速地获得基础油中链烷烃及一环~六环环烷烃的碳数分布结果。基于基础油分子组成数据... 详细信息

采用气相色谱/场电离飞行时间质谱(GC/FI TOF MS)对润滑油基础油进行分子表征。依据精确相对分子质量和质谱图平均丰度分别进行定性和定量分析,可简单快速地获得基础油中链烷烃及一环~六环环烷烃的碳数分布结果。基于基础油分子组成数据,采用Kennard-Stone方法将样品集分为校正集和验证集,依据偏最小二乘方法(PLS)建立预测黏度和黏度指数的模型,模型验正集及预测集预测值的标准偏差分别小于2.0 mm^(2)/s和2.0,相关系数均大于0.99。所建模型对基础油黏度及黏度指数的预测适用性好、准确度高,具有一定的实用价值。

关键词：润滑油基础油气相色谱/场电离飞行时间质谱分子组成黏度

Western medication plus Traditional Chinese Medicine preparations in patients with chronic heart failure:a prospective,single-blind,randomized,controlled,and multicenter clinical trial

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Journal of Traditional Chinese Medicine 2017年第6期37卷 756-766页

作者： Wang Xianliang Hou Yazhu Mao Jingyuan Zhao Yingqiang Niu Tianfu Yuan Ruyu Wang Yonggang Cui Jin-rong shi Le Jia Xiuli Fan Ruihong Lin Qian Zhang Yan Li Zhijun Shang Hongcai Wang Baohe Wang Hongwu Wang Henghe Cui Xiaolei Soh shanbin Ruan Jishou Zhang Boli Cardiovascular Department the First Teaching Hospital of Tianjin University of Traditional Chinese Medi-cineTianjin 300193China Cardiovascular Department the SecondTeaching Hospital of Tianjin University of Traditional Chi-nese MedicineTianjin 30015OChina Cardiovascular Department Shanxi TraditionalChinese Medicine InstituteTaiyuan 030012China Cardiovascular Department the Second Teach-ing Hospital of Tianjin Medical UniversityTianjin 300211China Cardiovascular Department the SecondTeaching Hospital of Shanxi University of Traditional Chinese MedicineXianyang 712000China Cardiovascular Department the Integrated Hospitals of TCM and Western Medicine of Shanxi Universityof Traditional Chinese MedicineTaiyuan 030001China Cardiovascular Department Tianjin Beichen Tradi-tional Chinese Medicine HospitalTianjin 300400China Cardiovascular Department Tianjin Nankai Tradi-tional Chinese Medicine HospitalTianjin 300102China Cardiovascular Department Tianjin Tradition-al Chinese Medicine HospitalTianjin 300020China Cardiovascular Department the Eastern Hospitalof Beijing University of Traditional Chinese MedicineBeijing 100078China Evidence-based medicinecenter Tianjin University of Traditional Chinese MedicineTianjin 300193China Statistic Department Tianjin University ofTraditional Chinese MedicineTianjin 300193China Institute of Traditional Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjin 300193China Graduate school Tianjin Universi-ty of Traditional Chinese MedicineTianjin 300193China Ruan JishouDepartment of MathematicsNankai Universi-tyTianjin 300071China

OBJECTIVE: To assess the efficacy and safety in patients with chronic heart failure(CHF) of Western medication plus Traditional Chinese Medicine(TCM) preparations.METHODS: This prospective, single-blind, randomized, controlled, and multicenter clinical trial began on September 17, 2008, and was completed on June 25, 2011. A total of 340 inpatients, aged 40-79 years, with exacerbating CHF from 10 hospitals were enrolled and randomly allocated within 24 h of admission. The trial included three intervention periods. During hospitalization, the control group received western medication for CHF and the treatment group received Danhong injection with Shenfu injection or Shenmai injection. After discharge,all patients were treated with Qiliqiangxin capsules and Buyiqiangxin tablets or a placebo for 6 months. After the 6-month intervention, both groups received only continuous western medication. The primary endpoint was all-cause mortality.The efficacy assessments were as follows: B-type natriuretic peptide(BNP), Lee's HF score, the 6-minute walking test(6 MWT), left ventricular ejection fraction(LVEF), and the Minnesota Living with Heart Failure Questionnaire(MLHFQ). The safety assessments were as follows: blood and urine routine examination, hepatic and renal function, electrolytes in blood and adverse events.RESULTS: Compared with the control group, the treatment group showed a 30.99% reduction in all-cause mortality and an improved survival rate.The treatment group showed greater improvement in 6 MWT(P = 0.02) than the control group on discharge, after 12-month follow-up, there was a time-group interaction for MLHFQ(P = 0.03). Incidence rate of adverse events and other relevant safety indexes were not statistically significant between the two groups.CONCLUSION: Western medication plus TCM treatment can increase 6-minute walking distance(improve exercise tolerance) and quality of life with heart failure patients.

关键词： Heart failure Medicine, Chinese tradi-tional Walk test Randomized controlled trail

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福山凹陷西部地区原油地化特征与油源对比

地球科学（中国地质大学学报） 2016年第11期41卷 1909-1920页

作者：卢政环甘华军时阳陈善斌王华马庆林中国地质大学构造与油气资源教育部重点实验室湖北武汉430074 中石油南方石油勘探开发有限责任公司广东广州510240

福山凹陷是北部湾盆地的重要含油气单元,是一个"小而肥"的富生烃凹陷.充分利用烃源岩和原油的有机地球化学等分析测试数据,针对凹陷内研究较少的西部地区的原油进行地化特征分析,进而研究该区油气藏的油源.研究结果显示凹陷西部原油主... 详细信息

福山凹陷是北部湾盆地的重要含油气单元,是一个"小而肥"的富生烃凹陷.充分利用烃源岩和原油的有机地球化学等分析测试数据,针对凹陷内研究较少的西部地区的原油进行地化特征分析,进而研究该区油气藏的油源.研究结果显示凹陷西部原油主要为轻质油,族组分以高饱和烃和芳烃含量、低非烃+沥青质含量为特点.凹陷西部的原油生油母质为陆源高等植物和低等水生生物的混合来源,为陆相湖盆混合型母质特征,不同区块不同层段原油的生油母质具有一定的差别.研究区生油母质沉积环境为偏淡水氧化沉积环境的湖沼相,结合原油成熟度,可将研究区原油划分为3类:(1)美台-红光流三上段原油,具有"中等成熟度,低奥利烷含量"特征;(2)永安流一上段原油,具有"高成熟度,高奥利烷含量"特征;(3)朝阳流一上段原油,具有"低成熟度,中等奥利烷含量"特征.进一步油源对比结果显示,美台-红光地区流三段原油来自流三段和流二下段烃源岩,而永安地区的流一段烃源岩为永安地区的原油提供油源.

关键词：福山凹陷流沙港组原油生物标志物油源对比石油地质. petroleum geology.

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日本准天顶卫星导航系统应用分析与启示

全球定位系统 2020年第1期45卷 93-98页

作者：国际高为广苏牡丹石善斌汪陶胜北京跟踪与通信技术研究所北京100094 空军研究院通信与导航研究所北京100085

日本立足自身自然地形及城市特点,基本建成了准天顶卫星导航系统(QZSS),并可基于GPS提供定位增强服务.本文针对QZSS服务及应用开展了研究,对其信号、特色服务,应用领域,以及推荐产品名录进行了分析.日本针对卫星导航的推广应用工作有其... 详细信息

日本立足自身自然地形及城市特点,基本建成了准天顶卫星导航系统(QZSS),并可基于GPS提供定位增强服务.本文针对QZSS服务及应用开展了研究,对其信号、特色服务,应用领域,以及推荐产品名录进行了分析.日本针对卫星导航的推广应用工作有其特色,充分利用了数码相机、运动手表等产品制造优势,大力布局个人智能终端;在铁路、精准农业、建筑施工等行业,努力拓展厘米级增强服务应用.这些对我国推进卫星导航系统应用工作有着一定的参考意义.

关键词：准天顶卫星导航系统特色服务产品名录高精度应用灾害报告

北部湾盆地福山凹陷烃源岩地球化学特征及地质意义

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油气地质与采收率 2015年第1期22卷 14-19,25页

作者：陈善斌甘华军时阳赵迎冬王祥中国地质大学(武汉)资源学院湖北武汉430074 中国石油南方石油勘探开发有限责任公司广东广州510240

福山凹陷烃源岩地球化学特征对资源量评价及勘探目标优选具有重要意义。福山凹陷流沙港组烃源岩地球化学特征多参数分析和对比研究表明,流三段烃源岩主要发育于淡水、弱氧化湖泊环境,有机质丰度较高,有机质类型以Ⅱ1—Ⅱ2型为主,属于优... 详细信息

福山凹陷烃源岩地球化学特征对资源量评价及勘探目标优选具有重要意义。福山凹陷流沙港组烃源岩地球化学特征多参数分析和对比研究表明,流三段烃源岩主要发育于淡水、弱氧化湖泊环境,有机质丰度较高,有机质类型以Ⅱ1—Ⅱ2型为主,属于优质烃源岩;流二段烃源岩形成于淡水—微咸水、弱氧化—弱还原的湖泊环境,有机质丰度高,以Ⅱ1型有机质为主,属于优质—高丰度烃源岩;流一段烃源岩主要沉积于淡水、弱氧化的湖泊环境,有机质丰度较高,有机质类型以Ⅱ2型为主,属于次优质烃源岩。福山凹陷流沙港组烃源岩在流一段沉积晚期(38 Ma)开始生油,涠一段沉积早期(30 Ma)进入生油高峰期,新近系早期(20 Ma)进入生气门限,目前仍处于大量生烃阶段。白莲次凹现今生烃强度高于皇桐次凹,白莲含油气子系统的下部含油气子系统是最佳含油气系统,环白莲次凹油气聚集带的流三段一亚段—流二段储盖组合具有较大勘探潜力。

关键词：流沙港组烃源岩地球化学特征北部湾盆地福山凹陷

北部湾盆地福山凹陷异常地温特征及其对油气藏的影响

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油气地质与采收率 2016年第3期23卷 40-46页

作者：赵迎冬甘华军时阳陈善斌王观宏中国石油冀东油田分公司勘探开发研究院河北唐山063004 中国地质大学(武汉)资源学院湖北武汉430074 中国石油南方石油勘探开发公司广东广州510240

福山凹陷存在与基底构造格局不一致的异常地温特征。通过钻井测温数据与古地温模拟对该区异常地温的特征与形成机制进行了分析,结果表明:上、下地温梯度分层现象为岩性差异造成。基底构造格局不一致的异常地温与福山凹陷东侧全新世以来... 详细信息

福山凹陷存在与基底构造格局不一致的异常地温特征。通过钻井测温数据与古地温模拟对该区异常地温的特征与形成机制进行了分析,结果表明:上、下地温梯度分层现象为岩性差异造成。基底构造格局不一致的异常地温与福山凹陷东侧全新世以来强烈的火山活动密切相关。福山凹陷深部存在的岩浆囊以及典型的背斜构造、烃类聚集等综合因素形成了福山凹陷异常地温。异常地温形成的时间较短,对有机质成熟度影响较小,但是异常地温中心区域大量古油藏受其影响发生热裂解形成了凝析气藏,地温异常对福山凹陷古油藏产生了较大的影响。

关键词：异常地温火山活动古地温油藏热裂解福山凹陷