现代电子技术
現代電子技術
현대전자기술
Modern Electronics Technique
2015年
23期
1-5
,共5页
FMCW SAR%灾情评估%参数设计%馈通信号
FMCW SAR%災情評估%參數設計%饋通信號
FMCW SAR%재정평고%삼수설계%궤통신호
FMCW SAR%disaster evaluation%parameter design%feed-through signal
调频连续波(FMCW)合成孔径雷达(SAR)的成像系统具有体积小、功耗低、全天候工作、灵活派遣、起降场地要求低等优点，适合应用于小区域的灾情评估。结合成像分辨率、场景宽度和数据存储率的性能指标，提出了FMCW SAR系统总体参数设计流程，对参数分解设计，详细讨论了馈通信号的滤除、数据存储速率和发射功率的设计问题。最后根据局部灾情评估的场景特点，给出了参数设计实例和仿真结果。
調頻連續波(FMCW)閤成孔徑雷達(SAR)的成像繫統具有體積小、功耗低、全天候工作、靈活派遣、起降場地要求低等優點，適閤應用于小區域的災情評估。結閤成像分辨率、場景寬度和數據存儲率的性能指標，提齣瞭FMCW SAR繫統總體參數設計流程，對參數分解設計，詳細討論瞭饋通信號的濾除、數據存儲速率和髮射功率的設計問題。最後根據跼部災情評估的場景特點，給齣瞭參數設計實例和倣真結果。
조빈련속파(FMCW)합성공경뢰체(SAR)적성상계통구유체적소、공모저、전천후공작、령활파견、기강장지요구저등우점，괄합응용우소구역적재정평고。결합성상분변솔、장경관도화수거존저솔적성능지표，제출료FMCW SAR계통총체삼수설계류정，대삼수분해설계，상세토론료궤통신호적려제、수거존저속솔화발사공솔적설계문제。최후근거국부재정평고적장경특점，급출료삼수설계실례화방진결과。
The imaging system of the frequency modulated continuous wave(FMCW)synthetic aperture radar(SAR)has the advantages of small size,low power dissipation,all?weather operation,flexible dispatch,and low requirement of the take?off and landing site,which is suitable for applying to disaster evaluation of small region. Based on the performance indexes of ima?ging resolution,scene width and data storage rate,the design process of the population parameter in FMCW SAR system is pro?posed. The design problems of the feed?through signal filtering,data storage rate and transmitted power are discussed in detail by decomposition design of the parameters. According to the scene characteristics of the partial disaster evaluation,the instance of parameter design and simulation results are provided.
