说明：  相位偏置天线，英文全称DisplacedPhaseCenterAntenna，简称DPCA。 相位偏置天线是解决平台运动导致杂波谱展宽的一种技术，目前应用较广。
(Phase offset antenna, full name in English Displaced Phase Center Antenna, referred to as DPCA. Phase-biased antenna is a technology to solve the clutter spectrum broadening caused by platform motion, which is widely used at present.)