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时间:2019-11-27
《毫米波宽带成像测量雷达及其关键技术研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第34卷第1期2015年2月飞行器测控学报JoumalofSpacecmft1’I'&CTechnolo野V01.34No.1Feb.2015引用格式:毛茅,李玉书.毫米波宽带成像测量雷达及其关键技术研究[J].飞行器测控学报,2015,34(1):42—47.MaoMao,LiYushu.Millimeterwavebroadbandimaginginstrumentationradaranditskeytechnologies[J].JournalofSpacecraftTT&CTechnology,2015,34(1):42—47.毫米波宽带成像测量雷达及其关键技术研究。毛
2、茅,李玉书(北京跟踪与通信技术研究所·北京·100094)摘要:针对国内毫米波宽带成像测量雷达的建设思路,从3个方面展开论述:首先,歹ll举了国外相关雷达的主要技术指标,并对其技术特点进行分析,通过采用高功率发射机及功率合成技术、低损耗传输技术、低噪声接收机技术等,国外毫米波雷达实现了对远距离目标的探测,具备很高的测距测角精度、cm级的距离分辨率和极高的多普勒灵敏度,具有较强的目标识别能力;随后,通过对单脉冲机械跟踪和相控阵2种体制的优缺点进行比对分析,建议国内应采用单脉冲机械跟踪体制,并重点探讨了引导捕获和宽带测量方案;最后,对宽带大功率发射机、波束波导天馈线系统、宽带超导接收
3、机以及宽带数据采集等关键技术及其国内基础进行了分析,并给出了发展建议。关键词:毫米波雷达;宽带成像;大功率发射机;波束波导;超导接收机;数据采集中图分类号:V556.6;TN95文献标志码:A文章编号:1674—5620(2015)01一0042一06D()I:10.7642/i.issn.1674—5620.2015一01一0042一06MillimeterWaVeBroadbandImagingInstrumentationRadarandItsKeyTechnologiesMA0Mao。LIYushu(BeijingInstituteofTrackingandTelecom
4、municationsTechnology,Be巧ing100094)Abstract:DevelopmentofChina’smillimeter-wavebroadbandimaginginstrumentationradarsisanalyzedfromthreeperspectives.First,themaintechnicalperformancespecificationsandcharacteristicsoffore培nmillimeter-wavebroadbandimaginginstrumentationradarsareanalyzed.Usinghig
5、hpowertransmitterandpowercombiningtechnol—ogy,lowlosstransmissiontechnologyandlownoisereceivertechnology,foreignmillimeter-wavebroadbandima—ginginstrumentationradarsarecapableofdetectionoflongdistanceobjectswithhighrangingandangularmeasure—mentaccuracy,centimeter一1eVelrangeresolution,highDopp
6、lersensitivityandstrongobjectrecognitioncapability.Then,monopulsesystemandphased—arraysystemarecompared,andmonopulsesystemisrecommended.Ahigh一1ightisputondiscussionsofacquisitionandwidebandmeasurementmethods.Finally,keytechnologiesincludingwidebandhighpowertransmitter,beamwaveguideantennafeed
7、ersystem,superconductingreceiveranddatacollec—tion,andChina’sfoundationsintheseareasareanalyzed.Suggestionsfordevelopmentarealsogiven.Keywords:millimeter—waveradar;widebandimaging;highpowertransmitter;beamwaveguide;superconductingreceiver:dat
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