同步是跳频通信系统关键技术之一。
Synchronization is one of the key techniques to frequency-hopping (FH) communication system.
本文以差分跳频通信系统的实现为目的。
In this paper, the implementation of DFH system receiver is target.
摘要这篇论文主要介绍了快跳频通信系统的工作原理。
Abstract This paper introduces the principle of Frequency Hopping Communication System.
对正确应用跳频通信系统和提高其战斗效能具有重要意义。
It is importance for us to exert the battle efficiency and improve the battle effectiveness of FH communication systems.
跳频序列的性能对跳频通信系统的性能有着决定性的影响。
The properties of frequency hopping sequences have a decisive impact on the performance of frequency hopping communication systems.
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).
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.
在跳频通信系统中，组网是关系到跳频通信能否正常建立的关键。
Networking is the key for the frequency hopping (FH) communications to be working properly in the FH 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.
针对跳频通信系统，提出一种非相干的，高频带利用率的调制方案。
This paper introduces a multipurpose digital demodulation method based on SDR, which is one kind of non-coherent demodulation types.
针对军事无线通信抗干扰和保密性需求，给出了自适应跳频通信系统模型。
Considering the need of anti-jamming and secrecy in military wireless communication, model of adaptive frequency-hopping (AFH) system is given.
频率转移函数是相关跳频的关键技术之一，将直接影响相关跳频通信系统的性能。
The frequency transition function in DFH system is one of the key technologies and will influences the performance of the corresponding communication system considerably.
众所周知，设计好的跳频码和在混沌跳频通信系统中实现收发双方的同步是很困难的。
As is known it is difficult to design good FH code and synchronize the transmitter and receiver in a chaotic FH communication system.
介绍了跳频通信系统的基本组成、工作方式以及跳频通信系统中跳频综合器的设计要求。
The paper introduces the composition and the operation mode of frequency hopping (FH) communication system and the design requirement of frequency hopping synthesizer.
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.
针对高速跳频通信系统中同步的要求，采用同步头与时间信息相结合的方法实现跳频同步。
Based on the requests of synchronization for a high-speed FH communication system, we achieved synchronization by using a method combined synchronization-head with time of day (TOD).
频率合成器是跳频系统的心脏，它的各项性能指标对跳频通信系统的性能具有决定性的影响。
Frequency Synthesizer is the heart of the FH system. Its performance has the critical influence on the over-all capability of FH system.
扫频式干扰、更高跳速碰撞干扰等新的干扰方法成为跳频通信系统电子对抗领域中又一重要研究方向。
New interference methods, such as sweeping frequency interference and faster-hop-collision interference, become a new focus of electronic countermeasures to FH communication systems.
介绍了AD公司新推出的AD 9854芯片的主要特性，讨论了将其应用于跳频通信系统中的优势。
This paper introduces the features of AD9854recently made by AD company, and discusses the advantages of making use of it in frequency hopping communication systems.
为此，在对跳频通信系统研究基础上，重点分析了部分驻留时间干扰对跳频通信系统同步及跟踪的影响。
Therefore, based on researching FH communication systems, the influence of part time-resident interference on FH communications synchronization and its tracking has been mainly analyzed.
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).
具有优良相关性，大线性复杂度，平衡性，长周期的伪随机序列广泛应用于CDMA系统，扩跳频通信系统。
Pseudo-random sequences with optimal properties such as correlation, high linear spans, balance and long period are widely used in CDMA system, spread spectrum and hopping communication systems.
本文通过建立跳频通信系统的抗干扰仿真模型，用一组实际跳频系统的数据参数验证了该仿真模型的正确性。
In this paper a simulation model of frequency-hopping systems for analyzing the anti-jamming performance is built, and using a set of practical dates proves the correctness of this model.
无碰撞区跳频通信系统的跳频器所使用的跳频码是无碰撞区跳频码，该码在零位移附近一段区域内汉明相关值为零。
The No-Hit-Zone (NHZ) hopping code is employed by the frequency hopper of NHZ FH communication systems, which have no hits at all within a predefined correlation zone in the vicinity of zero shift.
部分频带噪声干扰和多音干扰对常规跳频通信系统危害较大，自适应跳频系统能够改善跳频通信系统的抗干扰性能。
Partial-band noise jamming and multi-tone jamming are two worse cases jamming for conventional FH, and the AFH can approve the performance of AH for anti-jamming.
研究结果表明，采用NHZ跳频序列的准同步跳频通信系统的MAI性能优于采用随机跳频序列的异步跳频通信系统。
The results shown that the MAI performance of NHZ quasi-synchronous system used NHZ sequences outperforms the asynchronous system employing random hopping frequency sequences.
为了利用无碰撞区跳频码的特点，论文提出了一种适用于基于无碰撞区跳频码跳频通信系统的多址接入准同步组网方案。
In this thesis, a new quasi-synchronous multiple access scheme suitable for FH communication system employing NHZ hopping code is proposed.
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.
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.
结果证实了，差分跳频通信技术和按序列检测方法的结合，使通信系统在瑞利衰落信道条件下的性能得到了比较显著的提升。
The simulation results presented prove that the performance of DFH system with signal detecting by sequence is much better than the conventional frequency hopped systems over Rayleigh fading channels.
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