延时线 meaning in Chinese

dl delay line

As ttd ( true time delay ) is utilized in optically controlled phased array at sub - array level to replace the phase shifter in general phased array radar system , and make time delay compensation at sub - array level , which can reduce aperture effect considerably and make the broadband and wide - angle scanning of phased array antennas come true
由于光控相控阵雷达在子阵级上引入实时延时线ttd ( truetimedelay )取代常规相控阵雷达中的移相器进行子阵级的延时补偿,大大减轻了孔径效应,使相控阵雷达实现了宽带宽角扫描。