定时误差的英文

例句与用法

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1. At last , simulate the work of the digital down - convert frequency in ideal instance and in instance of existing timing error , carrier error , intersymbol interference . these simulation results prove that the structure of digital down - convert frequency is right
   最后仿真了所设计的数字下变频结构在理想情况下和存在定时误差、载波误差、交叉串扰情况下的工作情况，证明了所设计的数字下变频结构是正确的。
2. Chapter 7 introduces and analyzes some timing error detection and feed - forward timing recovery algorithms for gmsk signal . the auto - correlation method is improved by using a post - filter . simulation results show that the improved method has better estimation accuracy
   首先分析比较了常见的gmsk符号同步的定时误差检测器算法和前向定时参数估计算法，并用后滤波的方法对定时参数估计的自相关法提出了改进，提高了算法的估计精度。
3. 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。
4. For symbol synchronization , a filtering and squaring algorithm of estimating the timing error has been introduced , and a method to improve the accuracy of estimated data has been presented , then two signal interpolation filter have been analyzed , one is fir interpolation filter , another is cubic interpolation filter
   对于全数字接收机中符号定时误差的恢复，先介绍了一种滤波平方后求符号定时误差估值的算法以及一种提高该算法估值性能的改进方法，接着介绍了纠正定时误差的fir插值滤波器和立方插值滤波器。
5. In this thesis , firstly , we put forward a new algorithm of the synchronization of carrier reference phase , that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication . we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ) , and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage
   我们对两种正交调制方式( 16qam和4 - qpsk )进行了模拟工作并给出了模拟结果，同时讨论了码元同步定时误差对锁相环路工作的影响并根据流星通信中使用变速率传输时锁相环路的载波同步性能进行了测试；然后在基于软件无线电思想的数字处理平台(该数字处理平台实现了中频数字化)上用dsp软件完成了载波的相位跟踪。