Disclosed in the present invention are a UWB-technology-based surgical positioning method,
system and device, and a medium. The method comprises: establishing a
human body electromagnetic simulation model, and using UWB technology to provide a
signal which is propagated within a
human body in the
human body electromagnetic simulation model, so as to establish a channel model; constructing a
path loss model for calculating a
path loss in the channel model; on the basis of a
signal reception principle, constructing a
mathematical model which includes a received power and a
path loss; after a first path loss is calculated by means of the path loss model, calculating a received power on the basis of the
mathematical model; at the minimum received power, calculating a second path loss on the basis of the
mathematical model; calculating a communication distance on the basis of the second path loss, a free-space path loss model, and environmental parameters which include a shadow loss; and on the basis of the communication distance, using a
trilateration positioning method to perform surgical positioning on a target to be measured. The present invention can improve the accuracy of surgical positioning, thereby avoiding causing additional harm to patients.