跳频又分为慢跳频(Slow Frequency Hopping)和快跳频(Fast Frequency Hopping)。通常认为伪随机码速率大于信息速率的是快速跳频系统, 反之则称为慢速跳频系统。
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3.61 高速跳频(FFH,Fast Frequency Hopping):每一调变符号内有好几 个跳跃(hops),在此类跳频中一个最短不中断之波形等于其跳跃( hop)。
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FFH Fast Frequency Hopping 快速跳频
fast frequency-hopping synthesizer 合成器
fast frequency hopping ffh 快速跳频
fast frequency-hopping system 快跳频系统
fast frequency hopping technique 快速跳频技术
shortwave fast frequency-hopping 短波高速跳频
fast frequency hopping technology 快速跳频技术
The Fast Frequency Hopping (FFH) Communication uses more than one frequency to transmit one symbol.
快速跳频通信就是一个比特符号用一个或一个以上的载频频率发送的通信技术。
参考来源 - 快速跳频系统同步跟踪算法研究However, it appears from the literature that the performance analysis of a coherent FHSS system in only limited to the slow frequency hopping (SFH) system, the research on the fast frequency hopping (FFH) system is not enough comprehensive and in-depth.
在以往的研究中,对相干跳频扩频系统的性能分析还局限在慢跳频系统上,对相干快跳频系统的研究还不够全面和深入。
参考来源 - 相干快跳频系统抗干扰性能分析·2,447,543篇论文数据,部分数据来源于NoteExpress
Fast frequency hopping system is the system whose hop rate is above one thousand per second.
快跳频系统指每秒频率跳变在一千次以上的跳频系统。
Some technique problems in fast frequency hopping synthesis are solved by making use of a programmable time division-fractional division PLL.
该合成器采用程控时分复用小数分频锁相技术,解决了快速跳频频率合成中的诸多固难。
Fast frequency hopping avoids interference Adaptive output power minimizes interference Short data packets maximize capacity during interference.
快速跳频避免干扰可变的电源输出使干扰减小到最小采用短数据包传输增强抗干扰能力。
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