Precise indoor localisation technology based on TR-FMM

Aiming to precisely locate a small mobile communication terminal in an indoor complex environment, a combination method, the time reversal-fast marching method (TR-FMM), is presented. The proposed method has been validated based on simulations in an indoor environment. The results demonstrate that it can build an excellent indoor channel model which is close to the actual environment. Localisation accuracy can be improved about 32.71 times than the regular TR method and the localisation error is 1.84 cm.