The passive radar based on external illuminator has many advantages, such as good invisibility, anti-stealth, anti-jamming capability, and it is simple and reliable.

• 摘要外辐射源雷达系统具有隐蔽性好、反隐身能力及抗干扰能力强、系统简单可靠等优点，近年来受到各国的重视，得到了较快的发展。