PMF-FFT 捕获算法部分匹配滤波器长度选取研究
PMF-FFT 포획산법부분필배려파기장도선취연구
Research on the Length Selection of Partial Matched Filter of PMF-FFT Acquisition Algorithm
  • 万方数据
    航空兵器 항공병기
    Aero Weaponry
    2015年 5期 46-51 ,共6页

    黄云青%尚勇%白森

    황운청%상용%백삼

    PMF-FFT%部分匹配滤波器%高动态%捕获性能 PMF-FFT%部分匹配濾波器%高動態%捕穫性能
    PMF-FFT%부분필배려파기%고동태%포획성능
    PMF-FFT%partial matched filter%high dynamic%acquisition performance
    高动态环境下具有较大的多普勒频移,不利于信号的快速捕获.基于PMF-FFT的快速捕获算法利用部分匹配滤波器结合FFT运算的方法可实现扩频信号的快速捕获,大大减少捕获时间,具有广泛的应用价值.本文通过建立数学模型, 详细分析了PMF-FFT算法的特性,确定了部分匹配滤波器长度的影响因素和设计准则,为算法的实现解决了首要问题.
    고동태배경하구유교대적다보륵빈이,불리우신호적쾌속포획.기우PMF-FFT적쾌속포획산법이용부분필배려파기결합FFT운산적방법가실현확빈신호적쾌속포획,대대감소포획시간,구유엄범적응용개치.본문통과건립수학모형, 상세분석료PMF-FFT산법적특성,학정료부분필배려파기장도적영향인소화설계준칙,위산법적실현해결료수요문제.
    It is not easy for signal fast acquisition in high dynamic environment with large Doppler frequency.The fast acquisition algorithm based PMF-FFT makes partial matched filter combine with FFT to realize the fast acquisition of the spread spectrum signal, which greatly reduces the acquisition time and has the widespread application value.By building mathematical model, the characteristics of PMF-FFT algorithm are analyzed in detail, and the influencing factors and design criteria of length selection for par-tial matched filter are confirmed, which solves the primary problem for the realization of algorithm.
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