信息通信
信息通信
신식통신
XINXI TONGXIN
2014年
7期
52-54
,共3页
测向%数字干涉仪%信道化IFM
測嚮%數字榦涉儀%信道化IFM
측향%수자간섭의%신도화IFM
digital interferometer%multi_baseline%unrap%digital channalizd
采用剩余定理设计多基线干涉仪，并通过一套系统的设计、仿真证明其有效性和准确性。简要介绍了其基本实现过程，并通过引入数字接收技术提高其工程实践指导意义。该干涉仪采用超外差结合超宽带数字接收技术实现，工作频段覆盖2～18GHz，数字中频带宽可达到400MHz；同时采用数字信道化技术，进行数字瞬时测频（IFM）辅助测向结果生成。
採用剩餘定理設計多基線榦涉儀，併通過一套繫統的設計、倣真證明其有效性和準確性。簡要介紹瞭其基本實現過程，併通過引入數字接收技術提高其工程實踐指導意義。該榦涉儀採用超外差結閤超寬帶數字接收技術實現，工作頻段覆蓋2～18GHz，數字中頻帶寬可達到400MHz；同時採用數字信道化技術，進行數字瞬時測頻（IFM）輔助測嚮結果生成。
채용잉여정리설계다기선간섭의，병통과일투계통적설계、방진증명기유효성화준학성。간요개소료기기본실현과정，병통과인입수자접수기술제고기공정실천지도의의。해간섭의채용초외차결합초관대수자접수기술실현，공작빈단복개2～18GHz，수자중빈대관가체도400MHz；동시채용수자신도화기술，진행수자순시측빈（IFM）보조측향결과생성。
The remainder theorem is used to design multi baseline interferometer,And through a set of system design and simu-lation prove the effectiveness and accuracy. Its basic implementation process are briefly introduced, and through the introduction of digital receiving technology to improve its engineering practice guiding significance . The interferometer adopts superhetero-dyne ultra wideband digital receiving technology implementation, 2~18 GHZ frequency coverage, digital intermediate fre-quency bandwidth can be up to 400 MHZ;Adopting digital channelized technology at the same time, digital instantaneous fre-quency measurement (IFM) auxiliary direction finding results generated.
