fast frequency hopping
英 [fɑːst ˈfriːkwənsi ˈhɒpɪŋ]
美 [fæst ˈfriːkwənsi ˈhɑːpɪŋ]
网络 快速跳频; 快跳频
双语例句
- FFH-OFDM combines fast frequency hopping ( FFH) with regular OFDM symbols, and it shows better performance in anti-fading of time-varying multi-path.
快速跳频正交频分复用（FFH-OFDM）在常规的OFDM符号中加入快速跳频预编码矩阵（FFH），使其在多径时变的衰落环境下具有良好的抗衰落性能。 - Design of broadband fast frequency hopping synthesizer
宽带快速跳频频率综合器的设计与实现 - The Design of Wide-band Fast Frequency Hopping Source in Phased-Array Antenna Based on DDS
基于DDS的有源相控阵天线宽带快速跳频源设计 - Development of rapid design system of composite die for blanking and drawing based on Pro/ TOOLKIT Design of broadband fast frequency hopping synthesizer
基于Pro/TOOLKIT的落料拉深复合模快速设计系统开发宽带快速跳频频率综合器的设计与实现 - Fast Frequency Hopping Receiver for Resisting Multi-tone Jam based on Independent Component Analysis
基于独立分量分析的抗多音干扰快跳频接收机 - Research on the Influence to Satellite Communication System Performance Caused by the Broad Band and Fast Frequency-hopping Synthesizer; Fast computation of wide-band radar cross section using complex frequency hopping and asymptotic waveform evaluation techniques
宽带快速跳频合成器对卫星通信系统性能影响的研究应用复跳频和AWE技术快速计算目标宽带RCS - Fast computation of wide-band radar cross section using complex frequency hopping and asymptotic waveform evaluation techniques
应用复跳频和AWE技术快速计算目标宽带RCS - 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。 - Research on Fast Frequency Hopping Radio Synthesizer
快速跳频电台频率合成器的研究 - A Research of Fast Frequency Hopping Synthesizers Based on PLL
基于锁相环快速跳频信号源的研究 - A frequency Synthsizer wtih high spectrum purity, low noise level and fast hoppingcapability is necessary in frequency hopping communication system.
在跳频通信系统中需要频谱纯度高、噪声电平低和具有快速跳频能力为频率合成器。 - In this thesis, a HF fast adaptive frequency hopping communication system for fulfilling the demand of the performance of anti-jamming and secrecy in military wireless communication field is simulated, and key technologies such as link quality analysis, adaptive frequency control and adaptive power control are researched.
本文针对军事无线通信抗干扰和保密性需求，在短波频段对快速自适应跳频通信系统进行了仿真，研究了信道质量评估、频率自适应控制和功率自适应控制等关键技术。 - A new fast frequency hopping synthesizer
一种新的快速跳频频率合成器 - Design of Fast Frequency Hopping Synthesizers Based on DDS
基于DDS的快速跳频源设计一种快速跳频SAW频率合成器 - Meanwhile, synchronization is also the difficulty of the development of FH system, which needs supplicated design especially in the fast frequency hopping ( FFH).
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。 - Design criteria for such signal source are derived, upon which one can choose the PLL loop bandwidth by trade-off considerations, to get a relatively low BER, simultaneously obtain low spurious output and fast frequency hopping as well.
为了减小相噪对系统性能的影响，导出了此类信号源的设计判据，据此可基于折衷考虑选取环路带宽，以便同时获得较低的误码率，以及低的寄生输出和较快的频率跳变速度。 - 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。 - A new chaotic spread spectrum communication system FFH-FMDCSK is presented, which is based on FMDCSK and fast frequency hopping techniques.
本文提出一种基于差分混沌频率调制（FMDCSK）的快速跳频扩谱通信系统（简称FFH-FMDCSK）。 - Fast Frequency Hopping Characteristics in WPAN Environment
WPAN环境下快速跳频系统跳频特性研究 - A fast generation of frequency hopping sequences
一种快速的跳频码序列产生方法 - A Multicarrier CDMA System Based on Fast Frequency Hopping Technique
一种基于快跳频技术的多载波CDMA系统 - The HF fast adaptive frequency hopping communication is a new developing direction in the field of military anti-jamming communication foV tactics application.
短波快速自适应跳频通信系统是军事通信领域战术抗干扰通信新的发展方向。 - Military frequency hopping communication systems must have fast frequency hopping rate and lower phase noise and lower spurious frequency synthesizer for high performance against interference.
军用跳频通信系统为了提高抗干扰能力和达到高的通信性能，要求跳频频率合成器具有高的跳频速度、低的相位噪声和杂散电平，同时输出频率按照伪随机序列跳变。 - The cross correlation performance of one coincidence sequence was analyzed, and the BER representation of fast frequency hopping OCDMA networks was deduced.
分析了单重合码的互相关性能，得出了未编码的快跳频光码分多址（FFH-OCDMA）系统误码率性能的具体表达式。 - Research and Design of PN Code Sequence Fast Frequency Hopping Frequency Synthesizer
伪随机序列快速跳频频率合成器的研制 - As the basis of analyzing the characteristics and key technologies of them, we find that the first hop of fast frequency hopping carries few data and has short frequency gap, so it is difficult to achieve frequency hopping synchronization when building self-organizing network.
通过分析跳频通信的关键技术发现快速跳频一跳携带的数据量少、频隙短，在跳频自组网时难以实现跳频同步。 - In this thesis, the multiple access interference cancellation algorithms for FH system are investigated. Firstly, the related knowledge of FH communication system and the fast frequency hopping/ Multiple frequency shift keying ( FFH/ MFSK) system model are introduced.
首先，本文对跳频通信系统的相关理论知识和快跳频多进制频移键控（FFH/MFSK）系统模型进行了介绍。 - In this dissertation, We study on multi-access interference cancellation technology of fast frequency hopping multi-access/ multiple level shift keying ( FFH-MA/ MFSK) systems, to improve system capacity and performance as low complexity.
本论文就快跳频多址多频移键控（FFH-MA/MFSK）通信系统的多址干扰消除技术展开研究，力求以较低的算法复杂度达到提高通信系统容量和性能的目的。 - The frequency refining method is also applied to estimate the frequency-hopping frequency of fast frequency hopping signal, the accuracy also can be increased.
本文还将该频率细化方案应用到快跳频信号的跳频频率的参数估计中，也可以提高跳频频率估计的准确度。