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   壁滤波器 的翻译结果: 查询用时:0.366秒
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壁滤波器
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  wall filter
     A METHOD OF COMPENSATION FOR THE BILAS INDUCED BY REGRESSION WALL FILTER ON THE ESTIMATION OF BLOOD PARAMETERS
     回归型壁滤波器引起血流参数估计偏差的一种补偿方法
短句来源
     Study on the Method of Testing the Wall Filter Performance
     壁滤波器性能测试方法研究
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  wall filter performance
     Study on the Method of Testing the Wall Filter Performance
     壁滤波器性能测试方法研究
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  “壁滤波器”译为未确定词的双语例句
     The comparison of several wall filters in color flow mapping
     彩色血流成像中几种壁滤波器的比较
短句来源
     In this paper, a simple and effective compensation method is proposed according to the characteristics of regression wall filters.
     本研究针对回归型壁滤波器的特点 ,提出了一种简单、有效的偏差补偿方法。
短句来源
     In order to test the performance of wall filters,we propose a method for simulation of Hybrid Doppler testing signal,which adopts a rectangular power spectrum.
     为测试壁滤波器的性能,提出了一种混合多普勒测试信号的仿真方法。
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  相似匹配句对
     Study on the Method of Testing the Wall Filter Performance
     滤波器性能测试方法研究
短句来源
     Transmission Line Filters
     传输线滤波器
短句来源
     Auto tracked Filter
     自动跟踪滤波器
短句来源
     The comparison of several wall filters in color flow mapping
     彩色血流成像中几种滤波器的比较
短句来源
     Abdominal wall endometriomas
     腹子宫内膜异位症
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  wall filter
B.Quality andadjustment of the Doppler instrument (errors due to low sensitivity, inappropriate adjustment of Doppler controls, inadequate wall filter).
      
Pitfalls may be avoided by using adequate means (low wall filter adjustment, high Doppler frequency, critical assessment of velocity spectra) to reduce the likelihood of errors occuring.
      
The frequency response characterization allowed to evaluate the arterial wall filter or buffer function.
      
A wall filter of 100Hz was used to avoid a false positive diagnosis of portal vein thrombosis, due to an inadequate high pass filter.
      
It is a standard brick wall filter with a symmetrical impulse response.
      
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Wall filtering is a very important technique in color flow imaging systems. Unfortunately,wall filter usually induces a bias to the estimation of blood parameters. In this paper, a simple and effective compensation method is proposed according to the characteristics of regression wall filters. Simulation shows that good compensation can be obtained by the proposed method. Moreover, the compensation effect becomes more evident when signal-to-noise ratio is smaller

壁滤波是彩色血流成像系统中一项非常重要的技术 ,但是任何壁滤波器都会对血流参数的估计引入偏差。本研究针对回归型壁滤波器的特点 ,提出了一种简单、有效的偏差补偿方法。仿真实验表明 ,该方法能够取得较好的补偿效果 ,而且信噪比越小 ,补偿效果越明显

In order to test the performance of wall filters,we propose a method for simulation of Hybrid Doppler testing signal,which adopts a rectangular power spectrum.In the method,the parameters of clutter,blood flow and system noise can be adjusted with flexibility.The problem about choosing model parameters is discussed as an emphasis.Several reasonable and typical parameter combination patterns are presented.Furthermore,an example is given to explain the process of choosing the parameters and testing the wall filter...

In order to test the performance of wall filters,we propose a method for simulation of Hybrid Doppler testing signal,which adopts a rectangular power spectrum.In the method,the parameters of clutter,blood flow and system noise can be adjusted with flexibility.The problem about choosing model parameters is discussed as an emphasis.Several reasonable and typical parameter combination patterns are presented.Furthermore,an example is given to explain the process of choosing the parameters and testing the wall filter performance.

为测试壁滤波器的性能,提出了一种混合多普勒测试信号的仿真方法。该方法采用矩形功率谱模型,杂波、血流和系统噪声的参数可以灵活变动,使用方便。对模型参数的选取问题进行了重点讨论,有针对性地提出了几种合理、典型的参数组合方式,并结合一个实例说明了参数的选取和壁滤波器的测试过程。

In this article,the model of Doppler signal and wall signal is constructed in the time domain and several wall filters are compared in detail.The conclusion of this article is very helpful for designing wall filters.

本文建立了多普勒血流信号与壁信号的时域仿真模型,通过仿真研究详细比较了几种壁滤波器的性能,所得结论对壁滤波器的设计有重要的指导意义。

 
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