CAJ | 학술논문

在传统方法的基础上,提出一种包络对齐快速实用算法.算法选取具有最大相关值的峰值包络作为参考信号进行包络对齐偏移量的求解.在最大相关峰值包络的选取过程中,将非相参积累后的信号通过低通滤波器,以滤除其高频分量的"毛刺",在不改变原信号基本形状的前提下,减少峰值个数,从而降低了最大相关峰值包络寻找过程的计算量.最后用实测数据对算法进行了测试和评估,本文的算法不仅降低了计算量,满足了工程上的应用,而且比传统算法具有更好的对齐效果.
재전통방법적기출상,제출일충포락대제쾌속실용산법.산법선취구유최대상관치적봉치포락작위삼고신호진행포락대제편이량적구해.재최대상관봉치포락적선취과정중,장비상삼적루후적신호통과저통려파기,이려제기고빈분량적"모자",재불개변원신호기본형상적전제하,감소봉치개수,종이강저료최대상관봉치포락심조과정적계산량.최후용실측수거대산법진행료측시화평고,본문적산법불부강저료계산량,만족료공정상적응용,이차비전통산법구유경호적대제효과.
To meet the demands of a rapid algorithm for the envelope alignment in engineering application, this paper proposes a valid and fast algorithm. The algorithm selects a peak envelope with the maximum correlation as a reference signal to calculate the offset. In the selection process of the maximum correlation peak envelope, the non-coherent accumulated wave is passed by a low-pass filter to filter the high frequency components, so that the detection of peaks becomes easy and rapid. Finally, the algorithm is tested and evaluated by real data. The result shows that the algorithm can reduce the calculation to meet engineering applications, and has a better alignment effect compared with the traditional method.