For fast and accurate design and production of lumped constant bandwidth frequency-hopping(FH) narrowband filter, a load structure changing with frequency is introduced.
为了快速准确地设计并制作恒带宽窄带集总跳频滤波器，提出了一种随频率变化而 变化的负载结构。
Meanwhile, synchronization is also the difficulty of the development of FH system, which needs supplicated design especially in the fast frequency hopping (FFH).
同时跳频同步也是跳频通信系统开发的难点，特别在高跳速工作时实现同步捕获和跟踪需要精心设计方案。
Meanwhile, synchronization is also the difficulty of the development of FH system, which needs supplicated design especially in the fast frequency hopping (FFH).
同时跳频同步也是跳频通信系统开发的难点，特别在高跳速工作时实现同步捕获和跟踪需要精心设计方案。
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