Passive radars have become an important research area of modern radars for their excellent performance advantages in anti-elint, anti-electronic counter-countermeasure, anti-stealth targets, anti-radiation missile, anti-extra low flight.

• 无源雷达具有反侦察、反干扰、反隐形、反辐射导弹、反低空突防方面等诸多优势，是现代雷达研究的一个重要领域。