RADAR SYSTEM

• Main Authors: MURASE RYOSUKE, NAKATA SHINGO, FUJII KEITA, TANIMOTO NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 21.06.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

To obtain accurate position information for a long time also for an object that does not have any transponders.SOLUTION: An antenna device 20 includes an azimuth angle antenna 21 and multiple elevation angle antennas 22. An azimuth angle information acquisition part acquires distance and an azimuth angle of a detection object on the basis of reflection waves detected by the azimuth angle antenna. An elevation angle information acquisition part acquires distance and an elevation angle of a detection object on the basis of reflection waves detected by the elevation angle antennas. A determination part determines a detection object at the same distance as the same detection object. A position detection part detects position information of the same detection object on the basis of an azimuth angle, an elevation angle, and distance of the same detection object. The multiple elevation angle antennas are disposed separately in an azimuth angle direction so as to share a detection range. Each of the multiple elevation angle antennas is rotatable continuously in one direction in an elevation angle direction.SELECTED DRAWING: Figure 2 【課題】トランスポンダをもたない物体についても、長期にわたって正確な位置情報を得ること。【解決手段】アンテナ装置２０は、方位角用アンテナ２１と、複数の仰角用アンテナ２２を有する。方位角情報取得部は、方位角用アンテナにより検知された反射波に基づいて、検知対象物の距離と方位角を取得する。仰角情報取得部は、仰角用アンテナにより検知された反射波に基づいて、検知対象物の距離と仰角を取得する。判定部は、距離が同一の検知対象物を同一検知物と判定する。位置検出部は、同一検知物の方位角、仰角、および距離に基づいて同一検知物の位置情報を検出する。複数の仰角用アンテナは、検知範囲を分担するように方位角方向に離間して配置される。複数の仰角用アンテナのそれぞれは、仰角方向において一方向に連続して回転可能である。【選択図】図２