| 摘要 |
A signal incoming direction estimation apparatus is constructed so as to comprise a sensor array (1) having plural sensors (A R1 , A R2 , ...) and the impedance of each of the sensors (A R1 , A R2 , ...) being set to a predetermined value, respectively, and a variable impedance adjustment means (21) having a variable impedance, being selectively connected to any one of the sensors (A R1 , A R2 , ...) of the sensor array (1), and controlling the current distribution of each of the above-mentioned sensors (A R1 , A R2 , ...). Due to this, it becomes possible for the signal incoming direction estimation apparatus to carry out a beam scan only by manipulating at least one impedance without simultaneously manipulating all of the sensor impedances and thereby a high-speed beam scan (directional control) becomes possible. |
