As the burial depth of the target body increases

the underground geological environment and structure are becoming more complex

and the difficulty of detection increases sharply. Therefore

the multi-channel transient electromagnetic method is introduced to study the three-dimensional model

thereby laying a good foundation for actual resource exploration. Aiming at the exploration characteristics of the multi-channel transient electromagnetic method

firstly

the working principle and outstanding characteristics of the multi-channel transient electromagnetic method are introduced

and the second is the research and analysis of its forward and inverse theory. Research shows that the frequency domain response of the transient electromagnetic field can be obtained through the time-frequency conversion method

and then the time domain response can be inverted by the conjugate gradient method. Finally

a three-dimensional model combining high resistance and low resistance is used for inversion simulation

and draw isochronous curves. Analyzing the inversion results

it can be seen that the multi-channel transient electromagnetic method has good response to the three-dimensional model and the boundary description. It can truly reflect the shape of the anomaly

which proves that the multi-channel transient electromagnetic method can be a reflection of the anomaly effective means.