空军预警学院学报
空軍預警學院學報
공군예경학원학보
Journal of Air Force Radar Academy
2013年
3期
161-163,168
,共4页
朱子平%刘志英%穆文争%董巍
硃子平%劉誌英%穆文爭%董巍
주자평%류지영%목문쟁%동외
天气雷达%数字阵列%数字波束形成%杂波抑制%解模糊
天氣雷達%數字陣列%數字波束形成%雜波抑製%解模糊
천기뢰체%수자진렬%수자파속형성%잡파억제%해모호
weather radar%digital array%digital beam-forming (DBF)%clutter suppression%ambiguity resolu-tion
为了获得气象目标信息参数、为分析湍流等天气过程演变提供更精细的信息、为高质量气象分析提供更好的手段,结合研制的某X波段数字阵列天气雷达,对数字波束形成(DBF)技术、杂波抑制和频域解模糊等问题进行了分析和仿真;探讨了DBF技术在天气雷达中的应用优势,对因波束电扫描使波位变化导致回波信号跳跃而限制IIR滤波器和脉冲对处理(PPP)应用的问题,提出采用频域插补技术来实现地物杂波抑制和保证气象目标参数估计的质量。最后,给出了天气雷达信号处理系统工程设计方案。
為瞭穫得氣象目標信息參數、為分析湍流等天氣過程縯變提供更精細的信息、為高質量氣象分析提供更好的手段,結閤研製的某X波段數字陣列天氣雷達,對數字波束形成(DBF)技術、雜波抑製和頻域解模糊等問題進行瞭分析和倣真;探討瞭DBF技術在天氣雷達中的應用優勢,對因波束電掃描使波位變化導緻迴波信號跳躍而限製IIR濾波器和脈遲對處理(PPP)應用的問題,提齣採用頻域插補技術來實現地物雜波抑製和保證氣象目標參數估計的質量。最後,給齣瞭天氣雷達信號處理繫統工程設計方案。
위료획득기상목표신식삼수、위분석단류등천기과정연변제공경정세적신식、위고질량기상분석제공경호적수단,결합연제적모X파단수자진렬천기뢰체,대수자파속형성(DBF)기술、잡파억제화빈역해모호등문제진행료분석화방진;탐토료DBF기술재천기뢰체중적응용우세,대인파속전소묘사파위변화도치회파신호도약이한제IIR려파기화맥충대처리(PPP)응용적문제,제출채용빈역삽보기술래실현지물잡파억제화보증기상목표삼수고계적질량。최후,급출료천기뢰체신호처리계통공정설계방안。
In order to achieve the information parameters of weather targets and presenting more accurate information for analyzing turbulence and other weather changing process as well as providing excellent means for high quality weather analysis, this paper analyses and simulates the DBF techniques, clutter suppression and ambiguity resolution in frequency domain, discusses the superiority of application of DBF technique to weather radar, presents a scheme of implementing the ground clutter suppression and ensuring parameter estimation quality of weather targets by using the frequency domain interpolation skills, based on the problem that the applications of IIR filter and pulse pair processing (PPP) are limited by echo signals hop resulting from wave position changing due to waveforms electronic scanning, and finally, gives an engineering design scheme of signal processing system for weather radar.