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5 井旁地震道及利用不同分析方法得到的时频谱 a—井旁单道地震记录;b—短时傅立叶变换得到的时频谱;c—同步挤压改进短时傅立叶变换得到的时频谱

Fig.5 Seismic trajectory by the well and the time spectrum obtained by different analysis methods a—single channel seismic record near the well;b—time frequency obtained by short time Fourier transform;c—synchronous squeezing to improve the time spectrum obtained by short time Fourier transform