Particle filter assisted RFID tag location method for surgery support system

This paper proposes a particle filter assisted RFID (Radio Frequency Identification) [1] tag location method for surgery support system. It is difficult to locate early stage small tumors during the intraoperative period. A part of authors has already proposed an RFID-based tumor location system, which implanted miniature RFID tags in the vicinity of the target tumor [2]. The operator search for the RFID tag using the sensor antenna. Although the proposed method can find the tag location exactly, it requires a skilled operator. In order to simplify the location procedure. The proposed particle filter assisted RFID tag location system is capable of identifying the tag location with simple motion of the sensor antenna. Computer simulation result shows that the proposed method can provide the precise estimate of the location of the tag.