ISSN1006－7167CN31－1707/TＲESEAＲCHANDEXPLOＲATIONINLABOＲATOＲY第42卷第2期Vol．42No．22023年2月Feb．2023DOI:10．19927/j．cnki．syyt．2023．02．026多通道卫星导航探空接收机射频前端的设计与仿真刘子锐1，李晓波1，钱芝颖2，杨奥莉1(1．天津市气象探测中心，天津300061;2．天津市武清区气象局，天津310700)摘要:结合卫星导航探空系统的发展需要，为实现卫星导航探空系统实时跟踪多个探空仪，使用EDA软件设计对多通道卫星导航探空接收机射频(ＲF)前端进行仿真。内容包括功率分配器、低噪声放大器和滤波器3种元器件与射频链路的级联仿真。信号经功率分配器变为多通道信号，不同通道使用不同解码方式可实现同时跟踪多个目标。仿真结果表明，方案可实现良好的物理多通道效果，解决了射频放大器芯片阻抗不匹配问题，实现了2．5%带宽超窄带滤波。关键词:卫星导航;探空接收器;阻抗匹配;窄带滤波;功分器中图分类号:P412．2;TP391．9文献标志码:A文章编号:1006－7167(2023)02－0123－06ＲFFront-endDesignandSimulationofMulti-channelSatelliteNavigationSoundingＲeceiverLIUZirui1，LIXiaobo1，QIANZhiying2，YANGAoli1(1．TianjinMeteorologicalObservationCenter，Tianjin300061，China;2．WuqingMeteorologicalBureauofTianjin，Tianjin310700，China)Abstract:Inordertomeetthedevelopmentneedsofsatellitenavigationsoundingsystem，realizethepurposeofsatellitenavigationsoundingsystemtrackingmultiplesoundinginstrumentsinrealtime，thispaperusesEDAsoftwaretodesignandsimulatetheＲFfront-endofmulti-channelsatellitenavigationsoundingreceiver．Thesimulationcontentincludespowerdivider，lownoiseamplifierandfilterthreekindsofcomponentsimulationandcascadesimulationofＲFlink．Thesignalischangedintomulti-channelsignalbypowerdivider，anddifferentchannelscantrackmultipletargetssimultaneouslybyusingdifferentdecodingmethods．Thesimulationresultsconfirmthatthedesignschemecanachievegoodphysicalmulti-channeleffect．Inthesimulation，theimpedancemismatchproblemoftheＲFamplifierchipisalsosolved，andtheultra-narrowbandfilteringproblemof2．5%bandwidthisrealized．Keywords:satellitenavigation;soundingreceiver;impedancematching;narrowbandfilter;powerdivider收稿日期:2022-05-23作者简介:...
