Microwave detection system for complex foreign matters in vivo based on template signal similarity

The invention discloses a microwave detection system for complex foreign matters in vivo based on the template signal similarity. Microwave defection, especially interior detection for materials, is widely applied and has the advantages of safe and frequent utilization and high portability. However, the microwave detection technology is still at an exploration stage for complex-structure detection objects in which to-be-detected target foreign matters have no significant difference with the dielectric constants of normal structural bodies, especially for the field of biomedicine detection. The microwave detection system provided by the invention is based on the template signal similarity, especially based on the signal similarity comparison between microwave measurement signals and corrected simulation template signals, so that the microwave detection system can be used for judging whether a foreign matter exists in an object or not and judging the position and size of a target foreign matter.