利用在接收机输入端加入测试信号，基于统计平均的思想求出所需要的校正系数，然后实现正交解调误差的校正。

Correction coefficients can be received based on statistic average when importing a test signal. Then quadrature demodulation errors are realized.

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提出了一种将正交调制LFM信号产生系统的幅相误差映射到基带后，在数字域利用复系数FIR滤波器进行校正的方案。

The errors are classified according to their frequency. The amplitude and phase errors of the LFM signal generators using quadrature modulation technology are mapped into baseband.

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