Frequency-Hopping signal is a typical nonstationary signal and must adopt nonstationary signal processing methods.
跳频信号是典型的非平稳信号，必须采用非平稳信号处理方法。
With the development of signal detection technique, slow frequency-hopping systems are vulnerable to jamming attacks.
和灭信号检测才能的日害删强，中缓快跳频体解很等忙蒙到做扰的攻打。
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。
Considering the need of anti-jamming and secrecy in military wireless communication, model of adaptive frequency-hopping (AFH) system is given.
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。
The advantages of strong anti-interference, random address selection make slow frequency-hopping (SFH) communication have a wide application in the areas of military and mobile communication.
跳频通信由于具有较强的抗干扰能力和任意选址等优点而在军事通信和移动通信领域得到了广泛的应用。
More is also to be spent on protecting satellite communications through encryption and frequency hopping.
美将会投入更多精力于加密和频率跳变等技术，以保护卫星通讯。
FHS 1 slot Frequency Hopping Sequence.
FHS1时隙跳频序列。
Finally, Bluetooth technology solutions implement Adaptive Frequency Hopping to ensure, which ensures we are a good neighbor technology, and we have done this for years.
最后，蓝牙技术方案实现了适应跳频(AdaptiveFrequency Hopping)技术以确保在无线连接技术的世界中，我们是一个好邻居，并且我们已经为此而工作了数个年头。
Differential frequency hopping (DFH) is a kind of new frequency hopping (FH) technique.
差分跳频是一种新型的跳频通信技术。
It is crucial to study the features of the frequency hopping signals in both time and frequency domain in order to detect and trace the FH signals.
对跳频信号的时频域进行分析是研究跳频通信，实现识别、跟踪跳频信号的重要基础。
There are two main alternatives, Direct Sequence Spread Spectrum and Frequency Hopping Spread Spectrum.
主要有两种选择，直接序列扩频和跳频扩频。
The frequency hopping coded signal is a new pulse compression radar signal, and has great analysis value.
跳频编码脉冲信号是一种新的脉冲压缩雷达信号形式，极具研究价值。
Frequency hopping technology has the strong anti jamming ability in the short distance communication field.
跳频技术在短距离通信领域内具有很强的抗干扰能力。
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.
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。
The paper introduces the composition and the operation mode of frequency hopping (FH) communication system and the design requirement of frequency hopping synthesizer.
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。
Networking is the key for the frequency hopping (FH) communications to be working properly in the FH system.
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。
The FH (Frequency Hopping) communication technology is the most important part of anti jamming communication. FH pattern is the key in FH system.
跳频通信技术是一种重要的抗干扰通信技术，跳频图案的设计是跳频通信中的一项关键技术。
For the good antijamming performance of the adaptive frequency hopping system, the design project of the (adaptive) frequency hopping satellite communication system is put forward in this paper.
鉴于自适应跳频系统的良好抗干扰性能，提出了一种自适应跳频卫星通信系统的设计方案。
The properties of frequency hopping sequences have a decisive impact on the performance of frequency hopping 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。
Slow frequency Hopping in GSM means that the frequency of radio timeslot is changing burst by burst.
全球移动通信系统中的慢跳频意味着无线时隙跳频正一阵一阵地改变。
The fundamental concept, technical characteristics and netting mode of Frequency Hopping Spread Spretum(FHSS)are introduced.
简要介绍跳频通讯技术（FHSS）的基本概念、技术特点及组网方式。
An acquisition method of frequency hopping signal in a TDMA system is presented in this paper.
本文提出一种时分多址跳频信号的捕获方法。
The zero-crossings of the AC voltage and digital frequency synthesizer are used in solving the two main problems in frequency hopping system-synchronization and fast frequency synthesizing.
利用电力系统三相交流电压过零点和高速数字频率合成器解决了跳频系统中同步和快速频率合成的两个关键问题。
Frequency hopping communication is an effective method for secret communication, and its key step is synchronization.
跳频通信是一种有效的保密通信方式，其关键在于使收发双方保持同步。
Frequency hopping technology has served in all kinds of communication systems with its excellent interference resistance ability, especially in short wave communication system.
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。
The frequency hopping pattern thus generated has not only good randomicity and uniformity, but also features for easy implementation and encryption key generation easily controlled.
由该函数产生的跳频图案不仅有良好的随机性和均匀性，而且具有易于硬件实现和密钥产生控制的特点。
Frequency hopping communication is a kind of communication system with strong anti-jamming capability.
跳频通信是一种具有较强抗干扰能力的通信体制。
The experiment results also show that the frequency hopping mode based on the COSTAS array is suitable for multi-target underwater acoustic positioning.
试验结果也证明了采用这种基于COSTAS阵列的跳频工作方式较为适合水下多目标声学定位。
When networking communication with frequency hopping technology, there exists many problems caused by the collision conflict, the longer network time, address conflicting, and timeliness reduces.
使用跳频技术进行网络通信时，碰撞冲突会导致组网时间过长、地址容易冲突、实时性降低等问题。
When networking communication with frequency hopping technology, there exists many problems caused by the collision conflict, the longer network time, address conflicting, and timeliness reduces.
使用跳频技术进行网络通信时，碰撞冲突会导致组网时间过长、地址容易冲突、实时性降低等问题。
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