基于同步挤压改进短时傅立叶变换的分频蚂蚁追踪在断裂识别中的应用

黄苇, 周捷, 高利君, 王胜利, 严海滔

The application of frequency division ant tracking based on synchronous extrusion improvement of short time Fourier transform in crack detection

HUANG Wei, ZHOU Jie, GAO Li-Jun, WANG Sheng-Li, YAN Hai-Tao

图4 原始地震记录及单频剖面 a—原始地震记录;b—改进短时傅立叶变换单频剖面;c—单道循环挤压改进短时傅立叶变换单频频谱;d—多道循环同步挤压改进短时傅立叶变换单频剖面

Fig.4 Original seismic record and single frequency profile a—original seismic signal;b—improved short time Fourier transform single frequency profile;c—single channel cycle squeeze to improve short time Fourier transform single frequency profile;d—multi channel cycle squeeze to improve short time Fourier transform single frequency profile