| 摘要 |
PROBLEM TO BE SOLVED: To perform calibration processing at high accuracy and low cost by estimating a coordinate system based on the physical characteristic of an arrival signal, in measuring and calibrating a receiving channel characteristic using received data of the arrival signal of unknown incidence angle. SOLUTION: This array angle measuring apparatus comprises a plurality of sensor elements 2 for receiving the arrival signal from a signal generation source 30, a receiver 3 for creating received data from the received arrival signal and estimating the incidence angle of the arrival signal based on the received data, a moving direction estimation processing section 12 for estimating the moving direction of a moving platform 1 based on the estimated incidence angle, a parameter-for-calibration estimating processing section 13 for estimating the receiving channel characteristic difference possessed by the sensor element 2 based on the estimated incidence angle, and an improved calibration angle-measuring processing unit 14 for calibrating the incidence angle estimated by the receiver 3 using the estimated moving direction and receiving channel characteristic difference. COPYRIGHT: (C)2009,JPO&INPIT
|
