火控雷达技术
火控雷達技術
화공뢰체기술
FIRE CONTROL RADAR TECHNOLOGY
2015年
1期
88-93,102
,共7页
机载脉冲多普勒雷达%雷达罩%测距%测角
機載脈遲多普勒雷達%雷達罩%測距%測角
궤재맥충다보륵뢰체%뢰체조%측거%측각
airborne pulse Doppler radar%radome%range measurement%angle measurement
雷达罩会降低机载脉冲多普勒( PD )雷达的性能。评估雷达罩对其性能影响是机载PD雷达设计过程中必不可少的环节。首先分析雷达罩对雷达天线方向图的影响，包括增益下降、波束变宽、波束偏转、副瓣抬高、产生镜像瓣和零深电平抬高等，然后分析天线性能下降对机载PD雷达的性能影响。通过仿真进一步分析了天线副瓣、镜像瓣对雷达中、低重频模式的性能影响。最后给出结论，天线罩会降低机载PD雷达的测距、测角性能。
雷達罩會降低機載脈遲多普勒( PD )雷達的性能。評估雷達罩對其性能影響是機載PD雷達設計過程中必不可少的環節。首先分析雷達罩對雷達天線方嚮圖的影響，包括增益下降、波束變寬、波束偏轉、副瓣抬高、產生鏡像瓣和零深電平抬高等，然後分析天線性能下降對機載PD雷達的性能影響。通過倣真進一步分析瞭天線副瓣、鏡像瓣對雷達中、低重頻模式的性能影響。最後給齣結論，天線罩會降低機載PD雷達的測距、測角性能。
뢰체조회강저궤재맥충다보륵( PD )뢰체적성능。평고뢰체조대기성능영향시궤재PD뢰체설계과정중필불가소적배절。수선분석뢰체조대뢰체천선방향도적영향，포괄증익하강、파속변관、파속편전、부판태고、산생경상판화령심전평태고등，연후분석천선성능하강대궤재PD뢰체적성능영향。통과방진진일보분석료천선부판、경상판대뢰체중、저중빈모식적성능영향。최후급출결론，천선조회강저궤재PD뢰체적측거、측각성능。
Radome will reduce performances of airborne pulse Doppler ( PD) radar. Evaluating impact of radome on radar performance is essential during airborne PD radar design. Firstly,effect of radome on antenna pattern is ana-lyzed,these include:gain loss,beam broadening,beam deflection,side-lobe level increasing,image lobe genera-tion and null depth increasing. Then airborne PD radar performance degradation due to antenna performance reduc-tion is analyzed. Impact of side-lobes and image lobes on performance of radar in low/medium pulse repetition fre-quency ( PRF) mode is further analyzed through simulation. Conclusion obtained is that radome will affect range and angle measurement performance of airborne PD radar.
