阵列天线阵元位置误差、通道不一致性和互耦的校正

Calibration Technique for Sensor Position Uncertainty, Channel Mismatch and Mutual Coupling of Sensor Array

采用单个连续波校正源 ,通过旋转阵列天线在多个校正方位测得校正数据 ,通过求解可分离的非线性优化问题 ,得到了阵元位置参数和包含通道幅度相位参数与阵元间互耦参数校正矩阵的估计 .

A method was presented for simultaneous calibration of the sensor position uncertainty, channel mismatch and mutual coupling effect of sensor-array. The array is rotated to different positions to receive the calibration signal from a continuous wave calibration source. Sensor position parameters and a calibration matrix combining channel gain, phase and mutual coupling parameters can be obtained by the solution of a separable nonlinear optimization problem. The computer simulation demonstrates the robustness and applicability of the proposed method.