Frequency Hopping FH的意思|示意

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。

The models implement all functions of the FH radio, and describe the actions of frequency-hopping communication exactly.

模型实现了跳频电台的各项功能，准确描述了该跳频无线通信网络的通信行为。

In the spread spectrum communication, direct sequence spread spectrum (DSSS) and frequency hopping (FH) are the two kinds of most widely used spread spectrum technologies.

在扩频通信技术中，直接序列扩频和跳频是应用最广的两种扩频技术。

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。

Finally, the OFDM modulation system and frequency-hopping system are connected by Schematic to constitute FH-OFDM modulation system.

最后用原理图输入方式把OFDM调制系统和跳频系统两个子系统相连构成FH - OF DM混合调制系统。

Over the past few decades, frequency-hopping (FH) communication system is widely used in military applications for its well performance.

跳频通信是扩频通信的一个分支，它的突出优点是抗干扰性强，因而很适用于军事领域。