Based on the normal equation algorithm to fir system identification and wavelet iteration , a method to estimate the wavelet from the third - order cumulant of field data is developed . due to the fact that higher order cumulant retains the phase information of the signal , and can suppress the gaussian noise ( color or white noise ) naturally , we can improve the time resolution via inverse filtering the wavelet estimated 本文在基于高阶累积量的fir系统辨识基础上，利用观测信号的三阶累积量对探地雷达子波进行估计，提出一种简单的迭代算法改善了波估计性能，据此进行反褶积，改善反射信号的信杂比和时间分辨率。
