The secondary filter is designed to eliminate the influence of the close frequency. The simulation results show that the requirements are implemented.3.
讨论了频偏和相位扰动对波束的影响；双频或三频同时工作时，为消除相邻频率间的干扰，设计了二次滤波的特殊处理方法，仿真表明设计满足要求。
参考来源 - 目标定向及多波束实现·2,447,543篇论文数据，部分数据来源于NoteExpress
An additional secondary filter segment (13) may be placed within the metal support of the main filter segment (8).
附加的次过滤段(13)可以被放置在主过滤段(8)的金属支撑件中。
A new approach to keeping control of ship heading is presented, which USES a primary filter and a secondary filter.
提出一种采用基本滤波器和辅助滤波器进行船舶航向保持控制的新方法。
The primary filter for continuous cleaning, and the secondary filter for collection of fine particles. Heat pump can also be offered to increase the total thermal efficiency.
主过滤器进行连续清理，次过滤器收集细小颗粒，同时采用热泵来提升总热效率。
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