The principle of geological radar detection is based on the differences in relative permittivity between objects. The geological radar emits high-frequency short-pulse electromagnetic waves by a wideband time-domain transmitting antenna towards the medium, where the electromagnetic waves propagate and reflect off different electrical interfaces. The reflected signals are then received by the radar receiving antenna and processed using computer software to generate a geological radar image. By analyzing parameters such as the intensity of energy reflection, waveform, and frequency change rate, distribution characteristics, and continuity or discontinuity of in-phase axes within the corresponding geological radar images, the reflection patterns between different objects are identified. The radar receiver automatically records the double time course of electromagnetic wave propagation to determine the spatial position of the objects.