POSITION SPECIFICATION DEVICE AND POSITION SPECIFICATION METHOD

To improve the accuracy of specifying the position of a positioning target.SOLUTION: A position specification device 1 includes: a first similarity degree calculation unit 21 which calculates a first degree of similarity for each of a plurality of measurement points P; a first difference calculation unit 31 which previously calculates a first difference for each of the plurality of measurement points; a second difference calculation unit 32 which calculates a second difference for each of the plurality of measurement points P; a second similarity degree calculation unit 22 which calculates a second degree of similarity as a degree of similarity between the first difference and the second difference for each of the plurality of measurement points P; and a specification unit 40 which specifies the position of a positioning target based on the first degree of similarity and the second degree of similarity.SELECTED DRAWING: Figure 1 【課題】被測位対象の位置の特定精度を向上させる。【解決手段】位置特定装置１は、複数の測定点Ｐのそれぞれについて第１類似度を算出する第１類似度算出部２１と、複数の測定点のそれぞれについて予め第１差分を算出する第１差分算出部３１と、複数の測定点Ｐのそれぞれについて第２差分を算出する第２差分算出部３２と、第１差分と第２差分との類似度である第２類似度を、複数の測定点Ｐのそれぞれについて算出する第２類似度算出部２２と、第１類似度と第２類似度とに基づいて、被測位対象の位置を特定する特定部４０と、を備える。【選択図】図１