DFH是什么意思 DFH在线翻译 DFH什么意思 DFH的意思

作者:DFH是什么意思 DFH在线翻译 DFH什么意思 DFH的意思 来源:未知 2021-06-02   阅读:

1.TheresultsshowthatDFHisnotaLPIcommunicationmanner,anditssecurityreliesonthetransitionfu

1. The results show that DFH is not a LPI communication manner, and its security relies on the transition function.
分析结果表明:相关跳频通信并不是一种杭截获的无线通信方式,其通信安全是建立在转移函数机制上的。

2. Then a Viterbi algorithm is proposed and applied to frequency sequence decoding of DFH receiver, and it is further improved by the full use of the characteristics of transition function.
摘要该文分析了相关跳频通信系统中频率转移函数的纠错性能,将Viterbi算法应用于接收端跳变频点序列的译码,并结合相关跳频转移函数的特点对译码过程作出了改进。

3. Cultural Revolution, naive we see: the resumption of classes in revolution, school name Dongfanghong primary, secondary DFH; work-based, agriculture-based when science; small business hawker when speculation; military propaganda team propaganda team work, agricultural promotion team admitted to the schools, factories; resorting to violence to a city is divided into two schools: the rebels, 110 conservative
文化大革命,幼稚的我们看到了:复课闹革命,就读学校的名称东方红小学、东方红中学;工基、农基当科普;小商小贩当投机倒把;军宣队、工宣队、农宣队住进了学校、工厂;武斗把一座城市分为二派:造反派、110保守派

4. 911查询·英语单词

4. The basic parameters, arrangment, as well as technical specification of DFH1854 articulated wheeled tractor are proposed.
摘要本文扼要介绍了东方红1854铰接式大功率轮式拖拉机的基本参数的确定、整机布置以及技术规格。

5. 911查询·英语单词

5. Research about DFH Network Based on FH/DFH
基于FH/DFH的差分跳频组网研究

6. A Kind of Shortwave Frequency Hopping Code Based on DFH Transform Function
一种基于差分跳频转移函数的短波跳频码

7. 911查询·英语单词

7. In this paper, the characteristics of the DFH technologies are described, and the frequency transition function based on the recursive shift register is proposed.
介绍了差分跳频技术的特点,构造了一类基于回归移位寄存器的频率转移函数。

8. The design of the G function (GF) is the core of the DFH system.
频率转移函数(又称G函数)的设计是差分跳频通信系统设计的核心。

9. DFH的解释

9. Situation and Development of Ultra-short Wave Communication in the Flood Control and Drought-resistant Research on Narrowband HF DFH Burst Communication
超短波通信在防汛抗旱工作中的地位和发展差分跳频技术应用于短波窄带猝发通信的研究

10. One method of hop detecting based on STFT is put forward, and the frequency features of HF DFH signal in one hop time is analyzed through it in this paper. Combining with the G function, it can detect the possible frequency.
本文提出一种基于STFT的跳检测方法,并与G函数相结合来分析短波DFH信号在每跳时间间隔内的频率特性,以检测可能的跳频率。

11. Due to FFT demodulation of DFH communication system, an HF passive RTFS solution based on signal energy and ICF (Interference Centroid Frequency) is presented in detailed.
同时结合短波差分跳频系统的FFT解调,提出了一种基于干扰矩心频率ICF(InterferenceCentroidFrequency)的无源探测实时选频方案。

12. Simulation results showed that as the ideas of random coding and iterative decoding are used, the bit error rate performance of the turbo-DFH system is significantly better than that of the DFH system with the conventional error correction code and missed hop correction algorithm.
仿真结果表明,由于采用了随机编码和软输出迭代译码,Turbo-DFH系统的误比特率性能较采用传统纠错编码和误跳纠正算法的DFH系统有明显改善。

13. This paper introduced the production technology of linear low density polyethylene speciality resin DFH 2076 for communication cable sheathing in an all-density polyethylene plant. A comparison in performance between DFH 2076, its imported counterpart and the modified domestic resin of same kind was carried out.
介绍了在全密度聚乙烯装置上生产线型低密度聚乙烯通讯电缆护套料DFH2076的生产技术,并对DFH2076、进口料以及改性国产料的性能进行了比较。

14. 911查询·英语单词大全

14. The Differential Frequency Hopping (DFH) technology which combines modulation encoding and frequency hopping technology can highly improve the data transmission rate, anti-interference characteristic and anti-fading ability of the system.
差分跳频(DFH,DifferentialFrequencyHopping)技术将调制,编码和跳频技术有机结合,能极大的提高短波通信设备的数据传输能力、抗干扰和抗衰落能力。

15. DFH在线翻译

15. This paper gives a brief description of the DFH-2A communication satellites which are the second generation of Chinese domestic communication satellites.
本文介绍中国第二代国内通信卫星&东方红二号甲(DFH-2A)的总体及分系统概貌。

16. An antenna system for DFH-2A domestic telecommunications satellite
DFH-2A国内通信卫星天线系统

17. As an important direction for short wave frequency hopping technology, differential frequency hopping has been the concern of many researchers. This kind of correlated frequency hopping system can provide a data transfer speed faster than ever before, and better resistance to jamming and interception capabilities.
作为短波跳频通信的一个重要方向,差分跳频(DFH)受到了很多研究人员的关注,这种相关跳频方式可以提供比以往跳频系统更快的数据传输速率和更好的抗干扰抗截获性能。

18. Reason Analysis and Improvement of Fracture Failure of Driving Shaft for DFH Middle Power Wheeled Tractor
东方红中轮拖驱动轴断裂故障原因分析与质量改进

19. 911查询·英语单词大全

19. Based on the encryption principle of affine cipher, a frequency transition function of DFH is designed.
基于仿射密码的加密原理,构造了一种差分跳频的频转移函数。

20. This paper presents a new HF hopping system, which is called Differential Frequency Hopping (DFH) system. The frequency transition function and the method of signal detection are the key technologies in this system.
本文介绍了一种新型的短波跳频通信技术&差分跳频,频率转移函数设计和信号的检测方法是差分跳频中的关键技术。

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