“…Secondly, more importantly, an artificial interference signal is easily introduced by the hostile radar, especially in a military radar field. The interference signal, referred to as the radio interference signal (RFI), is difficult to be suppressed, since the frequency of RFI is designed to fall into the frequency band of the desired radar signal on purpose [23]. Besides the hostile radar, the ground‐based radar systems are also suffered from RFI with high possibility caused by the nearby radar operating at the same frequency, e.g.…”