针对高频地波雷达、逆合成孔径雷达等接收系统中因混频前为宽带系统、混频后为窄带系统造成的幅相特性不理想 ,提出了两种补偿方法———时域补偿法和频域补偿法 ,仿真结果表明该方法是有效的。 For the high frequency ground wave radar, inverse synthetic aperture radar and other receiving systems because of mixing before the broadband system, the narrowband system after mixing caused by the amplitude and phase characteristics are not ideal, two compensation methods are proposed - the time domain compensation And frequency domain compensation method, the simulation results show that the method is effective.