scanning period meaning in English

扫描周期

However , the optimal results being a statistical average , the antenna pattern of random phasing is unsteady with the scanning angle and scanning period , so it is not easy to form the actually needed codes for control of the antenna scanning
应用遗传算法对随机馈相方案进行优化，能有效抑制寄生副瓣的出现，形成扫描空域确定的波控代码，实现相控阵波束无惯性的精确指向。
The full - digital servo control system of satellite antenna has already passed the whole satellite payload system test . the result shows that the system has good speed stability , high precision scan period and can work reliably under the simulative space environment
本文所设计的卫星天线全数字伺服系统已通过卫星有效载荷系统的联试实验，结果表明：该系统具有较高的转速稳定性和高精度的扫描周期，可以在外太空模拟环境下长期可靠地运行。