tracking velocity meaning in English

跟踪速度

With compensation of signal ’ s time delay from different radiating element by phase shifters , phased - array antenna can control array beam easily . because there are no mechanical devices for rotating beam , the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters . it improves the tracking velocity of antenna towards the object , and becomes the development trends of weapon system antennas
相控阵天线利用移相器补偿信号到达辐射单元时间的差异,从而控制波束方向;天线没有机械旋转问题,只需改变移相器的设定值,波束便可以在毫秒级内扫描其覆盖空域内的任何地方,提高了天线对目标的跟踪速度,是目前武器系统天线的发展方向。