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本文采用平顶升余弦 (RAC)滤波器代替传统裂谱分析方法中的高斯型滤波器 ,提出了一种改进型裂谱分析方法 ,实验结果证实了新方法具有很高性能稳定性和增强湮没晶粒 (或其他散射体 )散射中的缺陷回波信号能力。
In this paper, a flattened raised cosine (RAC) filter is used to replace the Gaussian filter in the traditional method of analyzing the fractal spectrum. An improved method for analyzing the cracked spectrum is proposed. The experimental results show that the new method has high performance stability and enhanced annihilation Defect echo signal capability in the scattering of grains (or other scatterers).