A method of digital calibration in the amplitude and phase imbalances of sum and difference channels, and of angleerror normalization processing is provided.
并提供了一种和差支路幅相不平衡数字校正和角误差归一化处理的方法。
2
RD algorithm based on minimum entropy criteria carries out the correction phase errors caused by high squint Angle via searching error coefficients for improving the imaging focus effect.
Combined with the Angleerror extraction method mentioned above, the amplitude-phase imbalance is calibrated effectively. Thus, the measuring precision of Angleerror is higher.