CORRECTION AMOUNT CALCULATION DEVICE, MOVABLE BODY POSITIONING SYSTEM, CORRECTION AMOUNT CALCULATION METHOD AND CORRECTION AMOUNT CALCULATION PROGRAM

To improve positioning accuracy of a movable body without limitation on an installation position of a receiving station.SOLUTION: A receiving station 3 receives movable body information from a movable body which transmits the movable body information including movable body position information indicating a measured position of itself, and transmits position time information obtained by applying reception time information indicating reception time at which the movable body information is received to the movable body information. A processor 42 of a correction amount calculation device 4 comprises: an information acquisition unit which acquires the position time information transmitted from each of receiving stations 3, and a correction amount calculation unit which, on the basis of the position of the movable body based on the movable body position information included in the position time information, each installation position of the plurality of receiving stations 3 and each reception time based on each reception time information included in the position time information transmitted from each of the plurality of receiving stations 3, calculates a correction amount for correcting a reception time difference between a reference receiving station that becomes a reference in the plurality of receiving stations and another receiving station to an original reception time difference.SELECTED DRAWING: Figure 2 【課題】受信局の設置位置が制限されることなく、移動体の測位精度を向上させること。【解決手段】受信局３は、測位した自身の位置を示す移動体位置情報を含む移動体情報を送信する移動体からの移動体情報を受信し、移動体情報に当該移動体情報を受信した受信時刻を示す受信時刻情報を付与した位置時刻情報を送信する。補正量算出装置４のプロセッサ４２は、複数の受信局３からそれぞれ送信された位置時刻情報を取得する情報取得部と、位置時刻情報に含まれる移動体位置情報に基づく移動体の位置と、複数の受信局３の各設置位置と、複数の受信局３からそれぞれ送信された位置時刻情報にそれぞれ含まれる各受信時刻情報に基づく各受信時刻とに基づいて、複数の受信局のうち基準となる基準受信局と他の受信局との間の受信時刻差を本来の受信時刻差に補正するための補正量を算出する補正量算出部とを備える。【選択図】図２