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filter coefficients
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  滤波器系数
     Mallat pyramidal algorithm wavelet analysis were used for restraining the signal noise, which decomposition and reconstruction coefficients are Daubechies' compactly supported filter coefficients.
     数据处理模块采用Daubechies紧支集滤波器系数,作为Mallat塔式算法快速分解和重构的小波变换系数对采集的红外信号降噪滤波,取得了满意的滤波效果。
短句来源
     The Method of Calculating Wavelet Transformation Filter Coefficients for Multiscale Edge Detection
     一种用于多尺度边缘检测的小波变换滤波器系数计算方法
短句来源
     A comparative study on performance improvement degree between baud-spaced decision feedback equalizer(BS-DFE) and fractionally-space decision feedback equalizer(FS-DFE) has been carried out,as the filter coefficients based on channel estimated parameters is used as optimal solution and optimal initial solution respectively in the forward and feedback filters.
     比较分析了基于信道参数得到的滤波器系数解分别作为均衡器前向和反馈滤波器的最优解及最优初始解的情况下均衡的性能改善程度,并将波特间隔判决反馈均衡器(BS-DFE)和分数间隔判决反馈均衡器(FS-DFE)的性能作了比较。
短句来源
     As the coefficients of each bank in polyphase filter are asymmetrical, the traditional polyphase structure cannot directly make use of the symmetry of filter coefficients and half of the multiplication calculation is redundant.
     随着滤波器阶数的增加,这种滤波器的计算量亦成正比增加。 虽然滤波器系数常常是对称的,但多相结构中每个分支的抽头系数却并不对称,因此在滤波器分支中无法使用对称性节省一半计算量。
     The condition on filter coefficients for fully parallel processing is derived.
     并推导出在全并行处理时滤波器系数所需满足的条件。
短句来源
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  滤波系数
     Proved the wavelet filter coefficients may obtained by the proving with some schemes.
     证明了小波滤波系数可以由机证(机器证明)获得。
短句来源
     The internal model controller is designed by Pole-zero Cancellation,and its filter coefficients meet the demands of robustness in uncertain conditions,and PID parameters can be fixed with PID principle approaching IMC.
     应用零极点相消法设计内模控制器,选取内模控制器的滤波系数满足预定不确定性下鲁棒性要求. 用PID规律逼近IMC控制获得PID参数的确定.
短句来源
     The number of the Volterra filter coefficients assumes a geometric series increase with the increase of the filter order,and it is very difficult to realize the filter. The BP neural network based on Levenberg-Marquardt(LM) algorithm is employed to approach the Volterra filter and to cancel nonlinear noise. The algorithm of the neural network is simple.
     针对阶数的增加,Volterra滤波器的滤波系数个数呈几何级数增长,实现困难的问题,提出采用基于Levenberg-Marquardt(LM)算法的BP神经网络逼近Volterra滤波器,实现神经网络非线性滤波,使计算简化。
短句来源
     Based on the sine and cosine transform which is the special case of the Hankel transform, applying the mature theory of the fast Hankel transform, this paper derived the digital filter algorithm of the sine and cosine transform and gave 250 filter coefficients for each.
     基于正余弦变换是汉克尔变换的特例 ,运用成熟的快速汉克尔变换理论 ,导出了正余弦变换的数值滤波算法 ,并给出了各 2 5 0个滤波系数
短句来源
     With the analysis of the principle of time-recursive filter, the authors find that the nature of time-recursive filter is Weighted Mean Low-Pass filter and the relationship between filter coefficients and SNR and the artifact arising from the area where motion can not be tracked.
     根据时域递归滤波的原理,得出递归滤波的本质就是加权平均的低通滤波器,以及滤波系数与信噪比改善和拖影时间之间的关系曲线。
短句来源
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  “filter coefficients”译为未确定词的双语例句
     FAST ALGORITHMS OF FILTER COEFFICIENTS AND WAVELET TRANSFORM FOR Bd WAVELETS
     Bd小波的滤波参数与小波变换快速算法
短句来源
     In the new algorithm, both the power vectors and filter coefficients are needed to be iterated and updated.
     在该算法中,除了需要对功率向量进行迭代更新以外,还要对接收机滤波器的抽头系数不断迭代更新。
短句来源
     The simulation indicates that the algorithm has good performance,especially when the filter coefficients are large,it is better.
     仿真表明改进算法有很好的性能,特别是对于滤波器的抽头系数很大的情况下,改进算法更为可取。
短句来源
     A novel method of analytic construction for wavelet filter coefficients is put forward,and the corresponding fast wavelet transform is set up.
     本文首先给出了小波滤波器分解方法 ,导出了类似于快速傅立叶变换的小波快速变换算法。
短句来源
     In this algorithm,both the power vectors and filter coefficients are renovated.
     在此算法中,对功率向量进行迭代更新的同时对接收机滤波器抽头系数进行迭代更新。
短句来源
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  filter coefficients
Filter coefficients of scaling functions and wavelets are computed with computer algebra methods (in particular Gr?bner bases) using relations between moments.
      
Symbolic Computation for Moments and Filter Coefficients of Scaling Functions
      
By minimizing the square errors of forward and backward predicting filters, autoregressive filter coefficients can be recursively solved, and receiver function is also estimated in the similar procedure.
      
Both numerical and theoretical results show that the proposed receiver performs close to the optimum MMSE receiver whereas the conventional adaptive MMOE detector suffers from high BER's due to the imperfect filter coefficients.
      
We show that the algorithm converges to a minimum power solution for the powers, and an MMSE multiuser detector for the filter coefficients.
      
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Methods of integral transforms and sampling theorem have been employed to carry out linear filtering of the apparent resistivity curves. In this way a new resisti-vity trans-form function T' and its corresponding curves are obtained. Then, by using the assumed layer parameters (layer resistivity and thickness), caloulation of the function T with automatic fitting, by the optimum method on the DJS-6 electronic computer with the apprarent resistivity field curves for their interpretation can be car-ried out.After...

Methods of integral transforms and sampling theorem have been employed to carry out linear filtering of the apparent resistivity curves. In this way a new resisti-vity trans-form function T' and its corresponding curves are obtained. Then, by using the assumed layer parameters (layer resistivity and thickness), caloulation of the function T with automatic fitting, by the optimum method on the DJS-6 electronic computer with the apprarent resistivity field curves for their interpretation can be car-ried out.After a brief mention of Ghosh's idea of linear filtering of the apparent resistivity curve, the difference between the methods of choosing the sampling interval and the filter coefficients used by other authors and ours has been pointed out. Besides, the computer block diagram and their applications to the optimum methods of damped least squares and variable metric are introduced. Finally, a short discussion of some actual examples of numerical interpretation of apparent resistivity curves is made.

本文主要介绍了应用积分变换的方法和采样定理将视电阻率ρ_s曲线作线性滤波,得出一新的电阻率转换函数T′曲线,然后,以层参数(各层的电阻率和厚度)算得的T用最优化数值方法在DJS-6型电子计算机上与其进行自动拟合,以达到解释电测深曲线的目的。 文中简述了戈什(Ghosh)提出的对ρ_s作线性滤波的原理,介绍了与国外不同的取样间距和滤波系数的确定以及阻尼最小二乘法和变尺度最优化法的计算框图和应用,最后附有实例和简要的讨论。

The theoretic formula of apparent resistivity in horizontal, uniform bedded medium can be transformed into a convolution filtering expression. The linear filtering coefficient obtained by this method can directly in- fluence the interpretation result of electric sounding curve. The paper introduces a high accuracy method for calculating linear filtering coef- ficient and an accuracy testing method. The accuracy obtained with the method is lettle higher than that of some conventional methods....

The theoretic formula of apparent resistivity in horizontal, uniform bedded medium can be transformed into a convolution filtering expression. The linear filtering coefficient obtained by this method can directly in- fluence the interpretation result of electric sounding curve. The paper introduces a high accuracy method for calculating linear filtering coef- ficient and an accuracy testing method. The accuracy obtained with the method is lettle higher than that of some conventional methods.

水平均匀层状介质的视电阻率理论计算公式,可以转换成一种褶积滤波形式。用这种方法求出的线性滤波系数,对电测深曲线的解释结果有直接影响。本文提出一种高精度线性滤波系数计算方法和精度检验方法,所得结果的精度都略高于某些常用方法达到的水平。

This paper presents a description of a method for calculating the apparent resistivity of electric drilling curve by means of BASIC language on a domestic minicomputer DJS—130, together with relevant flowchart of program and calculating examples.It is recommendable to use digital filtering to calculate apparent resistivity in engineering applications. It is especially so with the minicomputer when we adopt linear filtering coefficients of large-scaled sampling intervals to calculate apparent resistivity...

This paper presents a description of a method for calculating the apparent resistivity of electric drilling curve by means of BASIC language on a domestic minicomputer DJS—130, together with relevant flowchart of program and calculating examples.It is recommendable to use digital filtering to calculate apparent resistivity in engineering applications. It is especially so with the minicomputer when we adopt linear filtering coefficients of large-scaled sampling intervals to calculate apparent resistivity of smaller-scaled sampling intervals.The advantages embodied in this method are simpler programming, faster processing and adaptibility to manual operation of the computer, hence suitable for field work.

本文介绍应用国产DJS—130小型机及BASIC语言处理直流电测深正演问题的一种方法,给出了相应的程序框图及计算实例。采用数字滤波法,应用采样间隔较大的滤波系数来计算采样间隔较小的视电阻率值是一个适于工程上应用的可取方法。采用这种方法编写程序简单,运算速度快,且便于应用计算器进行手工计算,因而适用于野外生产工作.

 
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