本文介绍了一种新型的短波跳频通信系统CHESS系统。
This paper presents a new HF frequency hopping communication system which is called correlated hopping enhanced spread spectrum (CHESS).
本课题来自军事开发项目——数字化超短波跳频电台，主要用于海军舰艇之间的数据通信。
This subject comes from a military development project - Digital VHF FH Radio Set, and it is mainly used for the data communication between navy vessels.
短波跳频电台组网在军事通信中占有重要地位，组网应用可以提高跳频电台的抗干扰性能。
Network of the shortwave FH radio is significant in the military communication, also the applications of network can improve the anti-jamming capability of the shortwave FH radio.
实战条件下如何评价短波跳频通信系统的抗干扰性能是构建短波跳频通信系统的重要环节。
It is important to evaluate the antijamming ability of the short wave hopping communication system in real warfare.
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。
The advantages of strong anti-interference, random address selection make shortwave frequency-hopping (FH) communication have a wide application in the areas of military.
同时在OFDM调制时可以采用M -QAM映射方式，提高短波跳频系统的信息传输速率。
At the same time, M-QAM mapping can be used in OFDM for improving data transportation speed.
本文根据短波跳频电台的发展趋势，重点分析了研制新型短波数字跳频电台所涉及的若干关键技术问题。
Basing on development trend of short wave frequency hopping radio, this paper analyses some key techniques about the new type short wave digital frequency hopping radio.
文中介绍了一种数字化超短波跳频通信系统，并着重讨论了其系统定时、发送数据格式、同步的实现方式、同步保持等关键技术。
A digital VHF FH communication system is introduced, followed by its timing, the format of the data transmitted, the synchronization method and the keeping of synchronization.
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.
跳频通信技术因其具有良好的抗干扰能力而被广泛应用于各类通信系统中，尤其是短波通信中。
Frequency hopping technology has served in all kinds of communication systems with its excellent interference resistance ability, especially in short wave communication system.
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。
Chapter II studies some synchronization acquisition algorithms which is suitable for shortwave fast frequency-hopping system and deducts their theoretical performances.
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 IV chooses early-late door synchronization acquisition algorithm to design the shortwave fast frequency-hopping synchronization system.
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。
In this paper, we focus on shortwave fast frequency-hopping system synchronization acquisition techniques.
网络信道基于跳频和扩频超短波电台。
Network channel is base on frequency hopping and spectrum spread radio stations.
本文深入研究了美国推出的短波高速跳频CHESS电台的G函数算法，涉及到跳频图案、信息调制与解调等。
G function arithmetic of a HF high speed FH CHESS radio produced in U. S. is deeply studied in this paper, which involves FH pattern and the modulation and demodulation etc.
然而现有短波差分跳频通信系统仍面临稳定度和健壮度的挑战。
But still DFH systems are facing the challenge of greater needs for stability and robustness.
然而现有短波差分跳频通信系统仍面临稳定度和健壮度的挑战。
But still DFH systems are facing the challenge of greater needs for stability and robustness.
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