| 摘要 |
PURPOSE:To make it possible to detect the position of object by the reduced number of wave receiving groups in a wide visual field with good accuracy, by constituting the titled apparatus so that a dense arrangement part wherein the interval between adjacent wave receivers is narrow and a rough arrangement part wherein the interval between the wave receivers is wide are present. CONSTITUTION:A wave receiving group is constituted of three stages of a 3X3 wave receiving group A consisting of wave receivers 11-19, a 3X3 wave receiving group B consisting of wave receivers 20-23, 15, 14-27 and a 3X3 wave receiver group C consisting of wave receivers 28-31, 15, 33-36. The position of matter is detected on the whole using the wave receiving signal obtained from the wave receiving group A wherein an arrangement interval is dense and the position of the matter is locally detected using the wave receiving signals successively obtained on the basis of said detected result by the wave receiver groups B, C of which arrangement intervals become rough. As mentioned above, the estimation process of the position of the matter is made stepwise and the approximate position of the matter is estimated at an initial stage and accuracy is made higher while a visual field is made successively narrow and the position of the matter is finally detected with high resolving power. Therefore, the position of the object can be detected in a wide visual field with good accuracy using the reduced number of the wave receiving groups.
|
