CALIBRATION DEVICE OF ANTENNA DEVICE, CALIBRATION SYSTEM, AND CALIBRATION METHOD

To reduce an influence of a peripheral object, and to simply and accurately calibrate an antenna device.SOLUTION: A controller 21 controls drive devices 2 and 3 so as to move an antenna device 31 and a reflector 12 in the same predetermined direction and at the same speed. A calibration coefficient...

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Bibliographische Detailangaben
1. Verfasser:	TANIMOTO TAKEHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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 MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	To reduce an influence of a peripheral object, and to simply and accurately calibrate an antenna device.SOLUTION: A controller 21 controls drive devices 2 and 3 so as to move an antenna device 31 and a reflector 12 in the same predetermined direction and at the same speed. A calibration coefficient calculator 22 calculates a calibration coefficient of a signal processing circuit 33 on the basis of a radio signal radiated from the reflector 12 and received by the antenna device 31 during the movement of the antenna device 31 and the reflector 12. The calibration coefficient calculator 22 calculates a Doppler frequency relating to each signal component included in a radio signal received by the antenna device 31, extracts the signal component in which the Doppler frequency is zero, and calculates the calibration coefficient on the basis of the extracted signal component.SELECTED DRAWING: Figure 2 【課題】周囲物体の影響を低減し、簡単かつ正確にアンテナ装置を較正する。【解決手段】コントローラ２１は、アンテナ装置３１及び反射器１２を予め決められた同じ方向及び同じ速度で移動させるように駆動装置２，３を制御する。較正係数計算器２２は、アンテナ装置３１及び反射器１２の移動中に反射器１２から放射されてアンテナ装置３１によって受信された無線信号に基づいて、信号処理回路３３の較正係数を計算する。較正係数計算器２２は、アンテナ装置３１によって受信された無線信号に含まれる各信号成分に係るドップラー周波数を計算し、ドップラー周波数がゼロである信号成分を抽出し、抽出された信号成分に基づいて較正係数を計算する。【選択図】図２