频率分集的英文

• frequency diversity

• "频率"英文翻译    frequency; rate
• "分"英文翻译    component
• "集"英文翻译    gather; assemble; collect
• "频率分集制" 英文翻译 :    frequency diversity
• "频率分集，频率分隔，散频" 英文翻译 :    frequency diversity
• "脉冲频率分集" 英文翻译 :    pulse frequency diversity
• "频率分集带宽" 英文翻译 :    frequency diversity bandwidth
• "频率分集扩频" 英文翻译 :    fd-ss frequency-diversity spread spectrum
• "频率分集雷达" 英文翻译 :    frequency diversity radars
• "空间加频率分集" 英文翻译 :    space and tone diversity
• "频率分集保护转换" 英文翻译 :    frequency diversity protection switching
• "频率分集式雷达" 英文翻译 :    frequency diversity radar
• "频率分集正交调幅" 英文翻译 :    frequency diversity qam (fdqam)
• "功率分集系数" 英文翻译 :    power diversity factor
• "风频率分布" 英文翻译 :    wind frequency distribution
• "频率分辨率" 英文翻译 :    frequency resolution
• "频率分辩率" 英文翻译 :    frequency resolving power
• "频率分布" 英文翻译 :    frequency distortion; frequency distrbution; frequency distribution; frequency size distribution; frequencydistribution; probability density distribution
• "频率分布图" 英文翻译 :    frequency distribution diagram; frequency map; frequency propagation map; histogram; histograph
• "频率分割" 英文翻译 :    frequency division; frequency splitting
• "频率分割制" 英文翻译 :    frequency division system
• "频率分隔" 英文翻译 :    frequency separation
• "频率分隔制" 英文翻译 :    frequency division system
• "频率分级" 英文翻译 :    frequency diversity
• "频率分解" 英文翻译 :    frequency resolution

• Two kinds of typical wideband signal , frequency modulation ( fm ) signal and frequency spread signal , is analyzed qualitatively with wideband ambiguity function
  以宽带模糊度函数为工具定性地分析了两类典型宽带信号，即调频信号和频率分集信号。
• Furthermore , because the average power of transmitting lfmcw signal is the minimum peak power and the frequency diversity is high , it could not be detected easily
  其次,由于lfmcw雷达发射其所需的平均功率是最小的峰值功率,并具有很高的频率分集性,因此不易被侦察设备探测。
• Finally , this thesis put forward the application of frequency diversity reception to the counteraction against the frequency selectivity decline in the airborne oceanic submarine laser communication system , and whose capability graph is educed through the simulation on the computer
  文中提出把频率分集接收技术应用于对潜通信中，以达到抗频率选择性衰落的目的，并通过计算机模拟得出了其性能曲线。
• Space or multi - anntenna , diversity techniques are particularly attractive as they can be readily combined with other forms of diversity , e . g . , time and frequency diversity , and still offer dramatic performance gains when other forms of diversity are unavailable
  空间或多天线分集技术由于可以与其它如时间分集,频率分集技术相结合,并在其基础上提供很大的性能增益,而成为一种很有吸引力的分集技术。
• It is very difficult to design a high - quality underwater acoustic data transmission system . in our study , we use frequency diversity and frequency - hopped technology . this method is an effective solution for the isi and signal fading
  该方法起到保证mfsk传输系统使用频率中文摘要统使雨频率分集技术能得以有效的实现；并可用于提高mfsk信号检测精度，因此在频率信号检测中它有广泛应用意义，它是本文重要创新之处。
• Frequency diversity technique is effective in suppressing age if the frequency interval is big enough to remove off the correlation between the pulses transmitted by radar , wide - band mmw radar can satisfy the requirement but conventional microwave radar can t
  频率分集技术抑制目标角闪烁的有效性，取决于去除脉间相关性的性能，即要求雷达发射信号必须有较大的频率间隔，宽带毫米波雷达正好满足了这一常规微波雷达不能满足的要求。
• Lt is well anown that the multi ? ath effeet results in signal fading and intersymbol interference ( isd , wnich causes great difficulhes in pewces of transndssion in underwater acoushc cotnmnication . in this papef we used frequency diversity method to overcome the problem of signal fading , and used the frequency - hopping method to ebonate the isi caused by multi - path
  水声信道多途特性引起的信号衰落和码间干扰是影响水下通信质量的主要因素，采用频率分集技术可以处理幅度衰落，而跳频技术则可以简单、有效地抗多途引起的码间干扰。
• In this part , the two anterior chapters mainly discuss the various basic theories used by the designing for the propagation paths of the electric wave . the theories include the computation methods for the fade and the loss of various propagation paths and obstructions , the engineering estimation methods of the flat fading and frequency selected fading , the designing methods of space diversity and frequency diversity , etc . at the same time , the special designing method of the sea - across path is discussed in detail
  本文首先阐述了微波中继通信工程设计中的相关知识，其中前两章主要论述了线路设计中所用到的种种理论基础知识，包括对于各种路径情况、障碍情况的衰落与损耗的不同计算方法，平衰落与选择性衰落中断率的估算方法，天线分集和频率分集技术的理论知识和设计方法等等。
• Because using ofdm , a frequency - selective fading channel can be transformed into multiple frequency - flat fading sub - channels , in the coding process , spatial diversity ( due to multiple antennas ) is integrated with frequency diversity ( due to delay spread ) , therefore , the proposed code can provide higher diversity gain than space - time code alone
  该编码利用正交频分复用把频率选择性衰落信道变换成平衰落信道的特性，同时引入了基于多天线的空间分集和基于时延扩展的频率分集，比空时编码具有更高的分集增益。
• The backward scattering field of extended target is approximated as the synthesis of many strong scatter centers on target , and geometric optical method is used in establishing deterministic model of a aircraft in the paper , the model is used to evaluate the performance of frequency diversity in suppressing glint at last
  本文将复杂目标后向散射回波近似为目标上若干强散射中心回波的合成，结合几何光学法得到了某种飞机目标的确定性模型，并用该模型评定频率分集对角闪烁抑制的改善性能。

• 频率分集的日语：しゅうはすうダイバーシチ