High frequency ground wave radar generally adopts linear frequency modulated continuous wave (LFMCW) signals as the transmitting signal and acquire demodulation by getting rid of the slope.Here a new receiver system compensation scheme is proposed according to the working principle of this kind of radar.The system compensation is divided into wide-band compensation and narrow-band compensation

which are accomplished in time domain and frequency domain respectively.Rigorous theoretical demonstration and computer simulation results are brought forth in this article for the new method of wide-band compensation in time domain.