【英文标准名称】:Methodsofmeasurementforequipmentusedindigitalmicrowaveradiotransmissionsystems-Measurementsonsatelliteearthstations-Antenna
【原文标准名称】:数字微波无线电发射系统使用设备测量方法.卫星地面站测量.天线
【标准号】:BSEN60835-3-2-1996
【标准状态】:现行
【国别】:英国
【发布日期】:1996-08-15
【实施或试行日期】:1996-08-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:模拟;天线;二天线;通信技术;定义;定义(术语);图示;数字的;数字工程;地面站;电气工程;测量;测量技术;微波天线;微波链路;微波;偏振;无线电天线;雷达天线;无线电电路;无线电工程;无线电设备;无线电通信;雷达定位;无线电中继系统;无线电报;额定值;接收;卫星通信;卫星通信链路;信号传输;技术;远程通信;通信链路;电信系统;陆地的;发射
【英文主题词】:Analogue;Antennae;Antennas;Communicationtechnology;Definition;Definitions;Diagrams;Digital;Digitalengineering;Earthstations;Electricalengineering;Measurement;Measuringtechniques;Microwaveantennae;Microwavelinks;Microwaves;Polarization(wavephysics);Radioantennae;Radioantennas;Radiocircuits;Radioengineering;Radioplants;Radiocommunication;Radiolocationequipment;Radio-relaysystems;Radiotelegraphy;Ratings;Receiving;Satellitecommunications;Satellitelinks;Signaltransmission;Technology;Telecommunication;Telecommunicationlinks;Telecommunicationsystems;Terrestrial;Transmitting
【摘要】:ThissectionofIEC835-3givesdefinitionsandmethodsofmeasurementoftheelectricalcharacteristicsofsatelliteearth-stationantennasforfrequenciesaboveabout1GHz.Themethodsareapplicabletoreflectortypeantennasfordigitalandanalogsignaltransmission.Thepurposeofthemeasurementsismainlytoconfirmthatearth-stationantennaperformancecomplieswiththerequirementsgenerallygivenbythesatellitesystemproviderbasedontheRadioRegulationsandapplicableinternationalstandardssuchasITU-RRecommendationS.733-1andtheCCIRRecommendations465-4,580-3,731and732.Themeasurementproceduresareoftenprescribedbyinternationalsatelliteserviceorganizations.Measurementsareperformedundertheconditionthatallantennasubsystemequipmentisconnectedunlessotherwisestated.
【中国标准分类号】:M35
【国际标准分类号】:33_060_30
【页数】:60P.;A4
【正文语种】:英语


【英文标准名称】:ExposureofAdhesiveSpecimenstoHigh-EnergyRadiation
【原文标准名称】:暴露在高能辐射下的胶粘剂样品
【标准号】:ASTMD1879-1970
【标准状态】:作废
【国别】:美国
【发布日期】:1970
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:放射性照射;核能;太阳能;工艺;胶粘剂
【英文主题词】:adhesives;processes;nuclearenergy;solarpower;radiationexposure
【摘要】:
【中国标准分类号】:G39
【国际标准分类号】:83_180
【页数】:5P;A4
【正文语种】:英语