The advantages of strong anti-interference, random address selection make shortwave frequency-hopping (FH) communication have a wide application in the areas of military.
短波跳频通信具有较强的抗干扰能力和任意选址等优点而在军事通信领域得到了广泛的应用。
Firstly, this paper presents an improved prediction method of maximum usable frequency (MUF) of skywave propagation based on the analysis of the current shortwave frequency prediction method.
在对当前短波频率预测方法进行分析的基础上，提出了一种天波传播最大可用频率预测的改进方法。
The frequency prediction of skywave propagation in shortwave band is the precondition of performance prediction of skywave communication circuit.
短波天波传播频率预测是短波天波通信电路性能预测的前提。
In modern shortwave communication systems, the channels are mostly frequency-selective, multipath transmission causes the coherent attenuation and symbol interference.
现代短波通信系统，其信道大多数具有频率的选择性，多径传输产生了信号的相干衰落与符号干扰。
Chapter IV chooses early-late door synchronization acquisition algorithm to design the shortwave fast frequency-hopping synchronization system.
第四章选择早迟门同步捕获法进行了的短波高速跳频系统的同步软件设计。
Chapter II studies some synchronization acquisition algorithms which is suitable for shortwave fast frequency-hopping system and deducts their theoretical performances.
第二章研究了几种适用于短波高速跳频系统的同步捕获算法，推导了这几种算法的理论性能。
In this paper, we focus on shortwave fast frequency-hopping system synchronization acquisition techniques.
本文针对短波高速跳频通信系统的同步捕获技术做了详细的研究。
Shortwave non-orthodox frequency-hopped signal selection by improved time correlation arithmetic is introduced.
介绍了利用改进型的时间相关算法进行短波非正交跳频网台信号分选的方法。
Shortwave non-orthodox frequency-hopped signal selection by improved time correlation arithmetic is introduced.
介绍了利用改进型的时间相关算法进行短波非正交跳频网台信号分选的方法。
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