This paper presents a new multiple-degree-of-freedom position detection met
hod. The proposed method uses a position detection unit consisting of three
two-dimensional angle sensors and a two-dimensional angle grid. The displa
cements in the x and y directions in addition to the rolling, pitching and
yawing of the moving object can be determined from the outputs of the angle
sensors. The angle grid and angle sensors are calibrated using a self-cali
bration method to assure accurate position detection. In addition, simulati
on results confirming the feasibility of the new method are presented.