| 摘要 |
<p>A method of seismic surveying uses seismic waveguides in the earth. Seismic energy is transmitted from outside the waveguide and detected within the waveguide or vice-verca. Coupling of energy between the outside and the inside of the waveguide is effected by energy leakage at coupling sites where the waveguide departs from planarity. The method analysers seismic signals to determine the position and nature of coupling sites and the propagation characteristics of the waveguide. <IMAGE></p> |
