星间微波测距系统相位中心在轨标定研究

Study on Phase Centers Calibration of K-Band Ranging System During In-Flight Phase

研究了卫星质心已精确确定后,基于非线性卡尔曼滤波的星间微波测距系统的相位中心在轨标定方法。用非线性卡尔曼滤波对4种机动律的数据进行标定计算。仿真结果表明:当设定合适的敏感元件参数时,该法有较高的精度。

The phase centers calibration of K-band Ranging system during in-flight phase based on nonlinear Kalman filter was researched in detail while the centers of mass of satellites were known precisely in this paper. The data of the 4 maneuver laws were calibrated by nonlinear Kalman filtering. The simulation results showed that the calibration accuracy was high if appropriate parameters of sensors were designed.