The principle of geological radar detection is based on the differences in relative dielectric constants between objects. Geological radar emits high-frequency short-pulse electromagnetic waves into the medium by a broadband time-domain transmitting antenna. As the electromagnetic waves propagate through the medium, they encounter different electrical interfaces and are reflected. The reflected signals are then received by the radar receiving antenna and processed using computer software to obtain a geological radar image. By analyzing parameters such as the intensity of energy reflection, waveform, frequency change rate, distribution characteristics, and continuity or discontinuity of in-phase axes in the corresponding geological radar images, the reflection patterns between different objects are identified. The radar receiver then automatically records the double time-course of the electromagnetic wave propagation, thereby determining the spatial position of the objects.