According to the high spatial correlativity of the ionosphere contamination, then the rank one phase error estimation (ROPE) auto-focus method in imaging radar is suitably modified and applied to the ionosphere decontamination of HF radar echoes.

• 根据电离层污染具有高度空间相关性的特点，将成像雷达中的秩一相位误差估计聚焦方法适当修正后应用于高频雷达回波信号去电离层扰动污染。