For example, 802.11 and 802.11-fh products are not interoperable with 802.11-ds products, and vice versa.
例如，802.11和802.11- FH产品不能与802.11 -DS产品协同工作，反之亦然。
The principle of FH communication is described.
简述了跳频通信的基本原理。
Barrage jamming or track jamming can be used to the FH target.
对于采用了跳频技术的目标，可以采用阻塞式干扰或跟踪式干扰。
There are several difficult problems in the research of spread spectrum FH/DS system.
在研制扩展频谱FH/DS系统时，会遇到一些很困难的问题。
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。
Synchronization is one of the key techniques to frequency-hopping (FH) communication system.
同步是跳频通信系统关键技术之一。
To compare the cytotoxicity of imported polyacrylamide hydrogel (it) with that of home made (FH).
比较国产聚丙烯酰胺水凝胶(FH)与进口聚丙烯酰胺水凝胶(it)的细胞毒性。
Actual test shows this receiver is able to accomplish the task of automatic reception of FH signals.
经实际测试，该接收机能完成跳频信号自动接收的任务。
The BER formula is derived when a DS spread spectrum signal bandwidth is equal to the FH slot spacing.
推导了在直接序列扩频信号带宽等于跳频频隙间隔时系统的误码率公式。
The normal single mode optical fiber is not available for FH OCDMA system without any compensation scheme.
群速度失配造成的光脉冲位置偏移，在没有补偿措施的情况下，普通单模光纤不适于现有的FH -OCDMA系统。
Frequency-selective frequency hopping(FH) cosite d interference is a typical long impulse response interference.
跳频同址干扰具有频率选择性，是典型的长脉冲响应干扰。
In this chapter, the FH frame structure, synchronization method and the flows of SFH processing are expanded on.
本章内详细叙述了跳频数据的帧结构和同步方法，以及各种模式下的自适应处理流程。
By the analysts of state space, nonlinear transfer function is employed to improve the performance of FH sequence.
通过分析输出序列的状态空间，提出了一种改进的非线性转移函数来改善跳频序列的性能。
It is significant for us to exert the battle efficiency and improve the battle effectiveness of military FH radios.
对于发挥军事跳频电台的战斗效能、提高其战斗力具有重要意义。
By the analysis of state space, nonlinear transfer function was employed to improve the performance of FH sequence.
通过分析输出序列的状态空间，提出了一种改进的非线性转移函数来改善跳频序列的性能。
Then, the specific frequency properties of DDS output signals and their effect on FH signals are carefully analyzed.
接着，分析了DDS输出信号的频谱特性以及这些特性对跳频信号的影响。
In this paper, a finite precision chaotic FH sequence generator is designed based on the structure of digital filters.
本文采用有限精度非线性数字滤波器结构设计混沌跳频序列发生器。
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。
Programmer, graduated from FH Offenburg with a degree in Communication and Media Engineering, now lives in Baden-Baden, Germany.
程序员，德国奥芬堡应用科学大学传媒工程系毕业，现居德国巴登巴登。
FH synchronization is set up using the method of combining synchronization head with time of day (TOD), FH building-net using TDMA.
采用同步字头和时间信息TOD相结合的方法实现跳频同步，采用时分多址(TDMA)方式进行跳频组网。
The effect of low pressure hydrogenation refining with FH-98 catalyst on FCC diesel oil after refining by acid solvent was examined.
考察了FH- 98催化剂对酸性溶剂精制后的FCC柴油低压加氢精制的影响。
As is known it is difficult to design good FH code and synchronize the transmitter and receiver in a chaotic FH communication system.
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。
Firstly, the definitions of absolute and relative key amounts of FH systems, equal-interval and unequal-interval FH systems are given.
首先给出了跳频系统的绝对密钥量和相对密钥量、等间隔和非等间隔跳频系统等定义；
The generator of adaptive FH pattern is designed. By using it and the result of the LQA, adaptive frequency selection is accomplished.
设计了自适应跳频图案发生器，利用信道质量评估结果，完成了自适应频率选择。
Frequency Synthesizer is the heart of the FH system. Its performance has the critical influence on the over-all capability of FH system.
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。
A sliding window algorithm was developed for speech communications on Frequency-Hopping (FH) channels with wideband rejective interference.
为满足在跳频信道上的语音传输需求，研究了一种抗阻塞干扰的“滑动窗”语音传输算法。
In this thesis, a new quasi-synchronous multiple access scheme suitable for FH communication system employing NHZ hopping code is proposed.
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 order to enhance the nonlinearity and period length, different chaotic maps are combined into a cascaded chaotic map to design FH codes.
为了增大混沌跳频码的周期和非线性复杂度，我们利用多个不同混沌映射组成一个级联混沌映射，并用来设计跳频码。
Aiming at the characters of conventional FH radios, a whole scheme to realize the arithmetic of the adaptive random shift FH is put forward.
接着针对当前跳频电台的特性，提出了自适应随机变速跳频算法实现的总体方案。
Aiming at the characters of conventional FH radios, a whole scheme to realize the arithmetic of the adaptive random shift FH is put forward.
接着针对当前跳频电台的特性，提出了自适应随机变速跳频算法实现的总体方案。
应用推荐