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本文给出相干信号处理器中校正同相通道与正交通道的增益及相位的不平衡和校正偏置误差的方法。校正过程是根据对测试信号的测定而得到的系数来完成的。校正后的剩余误差依赖于测试信号的信噪比(S/N)以及求取校正系数时的滤波精度。
This paper presents a method for correcting the gain and phase imbalance and correcting the offset errors in the coherent signal processor for correction of in-phase and quadrature channels. The calibration process is based on the test signal obtained by measuring the coefficient to complete. The remaining error after correction depends on the signal-to-noise ratio (S / N) of the test signal and the filtering accuracy when determining the correction factor.