The Error of Position Line Caused by the Error of Target's Position

Abstract

When the artificial satellite is used as aids to navigation, its positional error is inevitable. We must consider its effect on the line of position. In case of one target, the displacement of the target corresponds to the displacement of the line of position. The author analysed the case of two targets. The angle between the two or the difference of distances may be measured. The displacement of the two targets are classified into parallel displacement, rotation and dilatation. The displacement of position line by the difference of distances from two synchronous satellites is calculated and is showed in figures 4 and 5.