HoneywellRDR-4B2HONEYWELL-CONFIDENTIALFileNumber•1.雷达的Basics•2.RDR-4B型号的Basics•3.天线双驱(DRD)•4.如何与飞行员沟通•5.Honeywell知识库•6.Honeywell的雷达资料Agenda3HONEYWELL-CONFIDENTIALFileNumber•BasicfunctionRadar(能探测距离方位和反射特征/颜色)•PWRDetection(增加了预测风切变功能)注:EGPWS的风切变功能是反应式的•AutotiltFunction/MultiscanfromCollins注:国航机队没有起用Autotilt功能•3DRadar/RDR40003D雷达----将要引进的15架777会安装WxRadarEvolution雷达的演变4HONEYWELL-CONFIDENTIALFileNumberRadarSystem传统雷达系统的基本组成Beam-ScanPathRadarDisplay25NM50NMRadarbeamThunderstormRadarTransmitter/Receiver/AntennaRadarbeamRadarBasics—气象目标和显示Exampleofradardisplay(RDR-4B)Radar’ssignaltravelsoutandbackTheradardisplayprovidesatop-downviewoftheweatherslice.Illuminatedsliceofthethunderstorm.6HONEYWELL-CONFIDENTIALFileNumber•1.BeamWidthforRDR-4Bis3degrees•2.GAINshouldbesettoAUTO/CALmostofthetime•3.AntennaTiltAdjustmentArtsKeyElementsforpilotstonote7HONEYWELL-CONFIDENTIALFileNumberRDR-4BBasics8HONEYWELL-CONFIDENTIALFileNumberRDR-4B是一部工作在X波段,具有前视风切变探测功能的气象雷达。它主要实现以下功能:•对飞机中心线左右90°,前方320NM内的天气情况的探测和定位。•探测40NM内突然出现的Turbulence•对于飞机中心线左右60°范围内出现的湿润的风切变探测•显示飞机中心线左右40°范围内前方5NM内出现的湿润的风切变•专门的符号显示风切变事件(红白相间)RDR-4BBasics9HONEYWELL-CONFIDENTIALFileNumberRDR-4BBasics10HONEYWELL-CONFIDENTIALFileNumberRDR-4BBasics11HONEYWELL-CONFIDENTIALFileNumberRDR-4BBasics12HONEYWELL-CONFIDENTIALFileNumberRDR-4Bmaintenancetraining•SystemInterconnect13HONEYWELL-CONFIDENTIALFileNumberRDR-4Bmaintenancetraining14HONEYWELL-CONFIDENTIALFileNumber•雷达收发机•它是雷达系统的核心,具有以下功能:•产生高频微波信号经波导管送到平板天线,并处理天线接收到的反射信号获取有用的信息。•将接收到的信号转换成1600Bit的ARINC453信号•接收相关交连的系统的信号,实现正常工作•给天线驱动组件供电并控制天线运动•产生合适的信号进行PWS探测和预报•给雷达控制面板供电并接收相关的控制信号•BITERDR-4BBasicsSummary15HONEYWELL-CONFIDENTIALFileNumber•雷达收发机发射的脉冲有3种宽度:1.5微秒,6微秒,18微秒。1.5微秒用于探测风切变,6微秒和18微秒用于探测0-320NM的天气。其中6微秒用于处理20海里内的天气。6微秒和18微秒都用于处理20-40海里内的天气,18微秒用于处理40海里外的天气。6微秒还用于探测Turbulence.•雷达收发机的工作频率为9345MHZ,峰值功率大约125W。RDR-4BBasicsSummary16HONEYWELL-CONFIDENTIALFileNumber•雷达收发机的接口信号1.Digitalserialdatainputsa)RadioAltimeter无线电高度表通过两条ARINC429总线提供高度信息用于PWS功能的激活。其中第二条总线用于备份。b)ADR两条ARINC429低速总线提供:—trueairspeeddata(label210)usedforvelocitycalculations—altitudedata(label203)usedforSTCcalculations—correctedaltitudedata(label204)usedonlywhenlabel203notavailableRDR-4Bmaintenancetraining17HONEYWELL-CONFIDENTIALFileNumberc)InertialReference两条ARINC429高速总线提供:-pitch(label324)androll(label325)dataforthestabilizationandcontroloftheantenna-east/westvelocity(label367)andnorth/southvelocity(label366)usedforvelocitycalculations-groundspeed(label312)usedforvelocitycalculations-trackangle(label317)usedforvelocitycalculations-trueheading(label314)-Magneticheading(label320)-ADIRUalignmode(label270)RDR-4Bmaintenancetraining18HONEYWELL-CONFIDENTIALFileNumberd)EFISControlSection•TwoARINC429busesprovidetheCAPTandF/Orangeselection(label271).Thereceiver/transmitterreceivesonebusfromtheCAPTEFIScontrolsectionandanotheronefromtheF/OEFIScontrolsection.RDR-4Bmaintenancetraining19HONEYWELL-CONFIDENTIALFileNumber2.Discreteinputs(a)Ground/flightsignalandlandinggearextendedsignal.ThesesignalsareprovidedbytheLandingGearControlandInterfaceUnit(LGCIU).-空地信号用于BITE的空地状态确认-起落架的放下信号用于确认从着陆模式向起飞模式转化,进而确认复飞状态。这种情况下产生合适的音响警告信息。RDR-4Bmaintenancetraining20HONEYWELL-CONFIDENTIALFileNumber(b)QualifiersAandBsignals(ifpredictivewindshearfunctionisactivated)Twotypesofqualifierinputsareusedtocontrolautomaticactivationofthewindshearfunction.-qualifiersA:使用两路qualifiersA。该信号由ATC/TCAS控制面板提供。其中qualifierA1信号由ATC/TCAS控制面板J1提供.QualifierA2是由ATC/TCAS控制面板J2提供。QualifierA2用于备份。当在ATC/TCAS控制面板将1台ATC应答机置于工作工作模式,qualifyA就被认为有效。-qualifiersB:使用两路qualifiersB.qualifiersB由发动机滑油压力传感器提供。qualifiersB1和1#发动机相连。qualifiersB2和2#发动机相连.当滑油压力高是qualifyB就被认为有效。当一个qualifyA和一个qualifiersB有效时,风切变功能就会自动激活。RDR-4Bmaintenancetraining21HONEYWELL-CONFIDENTIALFileNumber•EGPWCEGPWC通过WXR1(2)Hazardbus接收WR/PWS警告,来确定警告的优先级。风切变警告超越地形显示,并将地形显示转换为气象显示+相应的风切变的图像。优先级如下:1-WR/PWSWarning,2-WR/PWSCaution,3-TerrainWarning,4-TerrainCaution,5-WR/PWSadvisory(noaudio),6-Terrainbackground(noaudio).RDR-4Bmaintenancetraining22HONEYWELL-CONFIDENTIALFileNumber4.音频抑制离散信号(如果风切变功能激活)这些离散信号用于指示音频警告输出是否激活•预探测风切变音频警告被反应式风切变警告和失速警告抑制•预探测风切变音频警告抑制TCAS,GPWS或其他FWC警告。RDR-4Bmaintenancetraining23HONEYWELL-CONFIDENTIALFileNumber•风切变的探测雷达通过多普勒效应来探测风切变。通过数学计算,如果系统确认风切变危害系数(F因子)大于0.13并且处于飞机前方5NM内,则认为出现风切变,报警。•风切变探测在无线电高度2300FT以下自动工作。即使控制面板上主电门打在OFF位上,只要PWS电门在AUTO位,任何一个qualifierA和B满足,风切变就自动工作。•在风切变工作模式下,俯仰和增益由收发机自动控制。ND显示的是控制面板上设置的俯仰角(气象模式)RDR-4Bmaintenancetraining24HONEYWELL-CONFIDENTIALFileNumber•NOTE:Thepilothastodeselectwindshearmode(AUTO/OFFswitchtoOFF)forthefollowingreasons:-whentheaircraftisatagateareaorinmaintenancehangarstoavoidradiatingdangerforpersons-whennuisanceauralalertsaregenerated.•NOTE:ThereisnodangerofradiationtopersonsonthegroundiftheATCswitchontheATC/TCAScontrolunitissettoOFForSTBYafterlanding,evenifthewindshearswitchontheweatherradarcontrolunitisstillatAUTO.•NOTE:Inordertoensureoptimumperformanceforthepredictivewindshearfunction,theradomemustbeatleastequaltoclassBcategory1.RDR-4Bmaintenancetraining25HONEYWELL-CONFIDENTIALFileNumber天线扫描方式•A.气象模式天线扫描范围为180°,