time jitter造句

• Timing jitter in satellite data modem
  卫星数字调制解调器中的时钟抖动
• Investigation of laser pulse ' s timing jitter in rf photoinjector
  腔注入器中激光脉冲的时间抖动
• Measurement method of time jitter between pump laser pulse and rf wave by the charge change in photoinjector
  光阴极微波电子枪中激光脉冲的时间抖动测量
• One way to reduce timing jitter is the use of narrow - band frequency - guiding filters periodically distributed along the transmission line
  控制孤子的时间抖动和相互作用的一个重要方法是在传输线中周期性地安放滤波器。
• The numerical results demonstrate that the larger the zone of timing jitter and the higher the frequency , the less proportion the discrete psd component is in the total psd
  数值计算结果表明，随时间抖动范围增大和频率提高，离散功率谱分量所占比例下降。
• At first the leaking of the strobe pulse and its removing method are introduced . and then the timing jitter and its compensation method are introduced
  首先,介绍了选通脉冲泄漏及其去除方法;其次,介绍了时基抖动及其补偿方法;最后,介绍了反射及其去除方法。
• Recently , we propose that super - gaussian sliding - frequency filters are better in controlling timing jitter than the conventional filters usually in the form of fabry - perot etalons
  很多文献已表明，采用传统的固频或滑频的滤波器(通常是f ? p标准具)能很好地控制噪声和孤子的相互作用。
• This paper presented a ml estimator for the estimation of high - frequency sampling noise model to solve the problem that high - frequency sampling suffer from both additive noise and time jitter error estimation
  摘要针对高频数字采样中的附加噪声和时间抖动误差估计问题，给出了高频数字采样测量噪声误差的最大似然估计方法。
• These results prove that the design method has great affection to reduced timing jitter . at the same time , simulate the convergence characteristic of timing recovery loop which is added prefilter when the input qam
  同时还仿真了加预滤波器后定时恢复环路在有载波误差、交叉串扰情况下的收敛情况，证明了所设计定时恢复环路是正确的。
• The frequency band extension with time base jitter is also studied by simulation . the results show that the compensation of time jitter can reduce the error of signal and then increase the accuracy of frequency band extension
  对时基抖动的频带展宽技术的仿真结果表明，通过扩展的概率密度法对时基抖动的补偿，可以减小信号的误差，因而提高频带展宽的精度。
• With dispersion , xpm can induce intensity fluctuations and timing jitter of the pulses in the receiver . it can also cause the spectral spreading of the channel so that crosstalk is introduced . all these effects put a tight limit on the capacity of the systems
  它与色散共同作用，会导致接收端光脉冲的变形（强度起伏） 、光脉冲的时间抖动以及信道的频谱扩展，这些后果都会限制系统的性能。
• By solving the nonlinear schrodinger equation with perturbation method and computer simulations , we have demonstrated that super - gaussian sliding - frequency filters are more effective to reduce timing jitter than conventional sliding - frequency filters without sacrificing the signal - to - noise ratio
  通过求解非线性薛定谔方程和数值模拟，我们认为超高斯滑频滤波器能很好地控制孤子的时间抖动和相互作用。
• The amplitude fluctuation and according system performance degradation induced by xpm is also studied through numerical simulation . the timing jitter caused by xpm can also have great impact on system performance . by employing lagrangian variational method and statistical method , the timing jitter caused by xpm in strong dispersion managed rz systems is studied in chapter 3
  通过仿真也研究了波分复用系统中由于交叉相位调制效应引起的幅度抖动从而导致系统性能的恶化；交叉相位调制引起的时间抖动对系统性能也有较大影响，利用拉格朗日变分方法和统计分析的方法，第三章讨论了强色散管理归零码系统中交叉相位调制引起的时间抖动。
• Because the qam signal which is small roll - up factor has big timing - error jitter in steady state that result in big timing jitter , an expression of impulse response for digital prefilter is deduced and a kind of sub - optimum design method for digital prefilter is proposed in this paper
  针对匹配滤波器滚降因子较小的qam信号的稳态定时误差信号抖动较大，而造成较大定时抖动的情况。推导了一种用于减少定时抖动数字预滤波器的冲激响应表达式，并且提出一种数字预滤波器的设计方法，设计了一种优化数字预滤波器。
• Design a kind of sub - optimum digital prefilter . through the simulation of timing recovery loop which is n ' t added prefilter and which is added prefilter , discuss the convergence characteristic and compare the relation between timing jitter and signal to noise ratio , the relation between timing jitter and noise bandwidth of loop , the relation between symbol error ratio and signal to noise ratio
  通过对加预滤波器后的定时恢复环的仿真，讨论了环路的收敛情况，比较了所设计的数字预滤波器和无预滤波器时环路定时抖动与信噪比、定时抖动与环路噪声带宽、误码率与信噪比的数量关系，证实所设计的数字预滤波器对减少定时抖动非常有效。
• Our results show that pmd induces pulse broadening randomly in high bit - rate optical fiber communications ; the synchronous amplitude modulation control may correct directly any position change of timing jitter and soliton interaction , so the transmission distance and pulse quality will increase further
  研究结果表明对于高速率传输系统， pmd对脉冲的影响在时域上表现为脉冲形状的展宽，这种展宽是随机的；而同步幅度调制是在时域上，将发生形变的脉冲通过振幅调制，恢复原形，从而提高脉冲的传输性能。
• To study the periodical electromagnetic pulses with random timing jitter radiated by electromagnetic pulse transmitters , the psd ( power spectral density ) of periodical electromagnetic pulses with random timing jitter was obtained based on the analysis of the - function of the psd of timing jitter
  摘要针对工程实践中电磁脉冲发射机辐射的随机时间抖动周期性电磁脉冲信号，在分析随机时间抖动周期-函数功率谱密度的基础上，得出了随机时间抖动周期性电磁脉冲串的功率谱密度。
• By theory and practice simulation , the several types of constant envelope modulation techniques are analyzed and compared , including theirs modulation principle , phase path , the modulated wave envelope , power spectrums , error bit rate and the influence of its power spectrums of the band - limited and non - linear , etc . especially we have researched the ijf - oqpsk modulation technique , and the performance of its inter - symbol interference and time jitter free , and its strongly resisting of spectral spreading
  结合理论和实验仿真结果，分析讨论了卫星通信中的各种恒包络调制技术，对它们的调制原理，相位路径，已调波包络，功率谱密度，误码性能，以及带限非线性信道对其功率谱的影响等方面都作了研究和比较。特别研究了ijf ? oqpsk在消除码间干扰和定时抖动方面的性能及其优良的旁瓣特性和抑制频谱扩展特性。