自适应同步压缩变换在隧道探地雷达超前地质预报中的应用

马文德, 田仁飞, 郑伟

Application of adaptive synchrosqueezing transform in ground-penetrating radar-based advance geological prediction in tunnels

MA Wen-De, TIAN Ren-Fei, ZHENG Wei

图2 合成chirp信号及对应的瞬时频率

Fig.2 Synthetic chirp signal and its corresponding instantaneous frequency