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transfer functions ratio
相关语句
  传递函数比
     The popular TDE algorithms mainly include the classical generalized cross correlation(GCC),the adaptive least mean square(LMS),the subspace based eigenvalue decomposition(EVD)and the acoustic transfer functions ratio(ATF-s ratio) methods,etc.
     现有的TDE算法主要包括经典的广义互相关(GCC)方法、自适应最小均方(LMS)方法、基于子空间的特征值分解(EVD)方法和基于传递函数比(ATF-s ratio)的方法等。
短句来源
  相似匹配句对
     TRANSFER FUNCTIONS OF MOTION AND DEFOCUS
     运动、离焦的传递函数
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     THE TRANSFER FUNCTIONS OF INDUCTION MOTORS
     感应机的传递函数
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     Penalty's Functions
     刑罚的功能
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     Jasmonate and Its Functions
     茉莉素及其功能
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     Language Transfer
     语言迁移
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Based on multi-conductor transmission line(MTL)theory, pulse propagation model of partial discharge in transformer winding is established. Together with the real winding structure, its sectional winding current transfer function ratio of HV terminal to earth terminal is calculated. When discharge pulses are injected in different locations, their transfer function ratio curves are different for each other, so that the method of distance function is presented to locate partial discharge in transformer...

Based on multi-conductor transmission line(MTL)theory, pulse propagation model of partial discharge in transformer winding is established. Together with the real winding structure, its sectional winding current transfer function ratio of HV terminal to earth terminal is calculated. When discharge pulses are injected in different locations, their transfer function ratio curves are different for each other, so that the method of distance function is presented to locate partial discharge in transformer winding. The distance of transfer function ratios between transformer testing and simulating results are calculated, then the location of PD is determined by the smallest value of distance function. Single winding and 400kV transformer winding test results show the validity of the method.

基于多导体传输线理论建立放电脉冲信号在大型单相变压器绕组中的传输模型。结合真实变压器绕组的具体结构,在频域仿真计算了绕组不同位置注入放电脉冲电流时其首末端的电流传输函数比曲线。根据绕组电流传输函数比曲线的可分性,采用距离函数法实现了变压器绕组中局部放电的电气定位。该方法根据实测与仿真传输函数之间的距离函数大小判断放电位置,180匝连续式单绕组和400kV单相变压器的模拟定位试验验证了该方法的有效性。

Time delay estimation(TDE) is one of the key techniques in the array signal processing.Since microphones in array are usually placed at different places,TDE is used to derive the time difference of signal propagation from the source to the spatially separated microphones.The popular TDE algorithms mainly include the classical generalized cross correlation(GCC),the adaptive least mean square(LMS),the subspace based eigenvalue decomposition(EVD)and the acoustic transfer functions ratio(ATF-s ratio)...

Time delay estimation(TDE) is one of the key techniques in the array signal processing.Since microphones in array are usually placed at different places,TDE is used to derive the time difference of signal propagation from the source to the spatially separated microphones.The popular TDE algorithms mainly include the classical generalized cross correlation(GCC),the adaptive least mean square(LMS),the subspace based eigenvalue decomposition(EVD)and the acoustic transfer functions ratio(ATF-s ratio) methods,etc.For these TDE techniques,different approaches show different anti-reverberation and anti-noise capability,thus using for diverse acoustic scenarios.This paper gives the state of the art TDE techniques.By comparison of the referred algorithms,distinct features of each method ,including advantages and disadvantages,are revealed.Finally the future researches on TDE techniques are pointed out.

时延估计(TDE)是阵列信号处理中的一项关键技术,其目的是要估计出同源信号到达不同传感器时,由于传输距离不同而引起的时间差。现有的TDE算法主要包括经典的广义互相关(GCC)方法、自适应最小均方(LMS)方法、基于子空间的特征值分解(EVD)方法和基于传递函数比(ATF-s ratio)的方法等。这些算法因其抗噪和抗混响性能不同,有着各自的应用场合。本文首先对现有的各种TDE算法进行分类论述,进而通过综合比较揭示了它们各自的优缺点,最后给出了进一步的研究方向。

 
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