The feasibility of blanket jamming against space-borne SAR is analyzed. Through calculating the power of blanket jamming, it is concluded that the coherent pulses can jam space-borne SAR. 分析了对星载SAR实施压制式干扰的可行性,通过计算压制式干扰功率,得出能够采用相干脉冲主瓣干扰对星载SAR实施压制干扰的结论。