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闭形
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  closed form
     In three classical backgrounds, it analyses one of them, OS R CA for two sensor network, and derives the closed form solutions of detection and false alarm performance, and compares its performance with the COS and S+OS distributed CFAR detections.
     在三种典型背景环境中和两个局部处理器的条件下,分析了其中一种方案:OS-R-CA,推导出了它的检测和虚警性能的闭形解,并将其与COS,S+OS等分布式CFAR检测进行了性能比较。
短句来源
     A floating point roundoff error analysis in the estimation of fourth-order moments and cumulants of complex stationary processes from single data records is provided. Closed form expressions or upper bounds are derived for the mean and variance of the quantization noise introduced in the estimation of the diagonal slice moments and kurtosis. Theoretical results show that the roundoff noise can significantly affect the moment and cumulant estimates , especially when long data records are employed for the purpose of reducing the estimation variance.
     本文分析了由单个数据记录沽计复平稳过程四阶矩与四阶累积量的浮点舍入误差,得到了峰度与四阶切片矩的估计中引入的量化噪声的均值与方差的闭形表达式或上界,说明舍入误差明显影响四阶矩估计,尤其是对于为减少估计方差而采用的长数据记录情形.
短句来源
     The algorithms can be classified into two categories: a closed form solution and an iterative least squares fitting.
     目前算法可以分成两类:即闭形解和最小二乘迭代拟合。
     So this paper concentrates on the closed form solution for camera calibration.
     因此,本文研究了相机定标的闭形解。
  “闭形”译为未确定词的双语例句
     1.Based on the introduction of a new variable, completely general closed-form solutions are given for both the rectangular coordinates of the two-body problem and their partial derivatives with respect to their initial values.
     1.通过一个新变量的引入,研究了一种全新的位置矢量和速度矢量的表达式,并推导了基于这种表达方式的状态偏微分,得到了计算卫星任意时刻位置矢量和速度矢量相对于初始位置与速度矢量偏导数的统一闭形算法。
短句来源
     Referring to the closed solution formula used to calculate vertical Velocity gradient β(M) from surface seismic data in J. F. Claerbout equa- tion inversion algorithm,we can directly derive a simple algorithm from β(M) integral equation by means of Fourier transform and interpolation.
     参照克雷尔伯特方程反演算法中由地表观测记录计算地下介质速度关于深度变化率β(M)的闭形解公式,直接由β(M)的积分方程利用傅里叶变换和插值法,导出一种便于应用的算法。
短句来源
     This paper, Using wave equation, introduces some approximations, Ananalytical expression of the mean scattered sound intensity as a function of surface roughness, ultrasound frequency and reeiver grazingangle is developed.
     本文从声波动方程出发,引入了一些近似,建立了平均散射声强与物体表面粗糙度,超声频率和接收掠射角之间的闭形解析表达式。
短句来源
     In this paper, the mean Backscatterd sound intensity by a surface described by a Gaussian distribution of heights is calculated A formulation of the mean Backscattered sound intensity as a function of surface roughness, ultrasound frequency and grazing angle is developed. The theory is compared with experimental results in paper,they agreed very well in large grazing angle.
     本文给出了Gaussian分布表面的平均背向散射声强与物体表面粗糙度,超声频率和掠射角之间的闭形解析表达式.并与Boyd等报道的实验结果进行了比较,在大掠射角时二者符合较好
短句来源
  相似匹配句对
     So this paper concentrates on the closed form solution for camera calibration.
     因此,本文研究了相机定标的解。
     Shape * Shadow
     *影
短句来源
     Q-Closed Spaces
     Q-空间
短句来源
     B-closed Spaces
     B空间
短句来源
     Workmanship of Die Forging of Closure-Type Upsetting and Squeezing for Tube Anchorages
     管锚具式镦挤模锻工艺
短句来源
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  closed form
A practical example in applications is illustrated, the solution of which is obtained in closed form.
      
The closed form solutions of these discrete models are solved.
      
For the symmetrical optimality index, the complete solution to the problem of spacecraft reorientation is represented in a closed form.
      
The solution for the two-and three-dimensional problems is obtained in the general case in closed form.
      
The problem is self-similar, but the solution cannot be obtained in closed form.
      
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  close form
Simplified and close form expressions of CRB are obtained through complicated derivation, and then are applied to evaluate the performance of the cyclic estimator.
      
Because of the infeasibility of finding a close form of percentile life in the redundancy level, we now develop a lexicographic search methodology to obtain an exact optimal solution.
      
We obtain in close form the solution of the radial Schr?dinger equation at zero energy and its Regge poles, for the potentialV0rb-2/(1+rb)2, which is a superposition of Yukawa potentials.
      
The temperature distribution is obtained in close form in thes-domain.
      
The demonstrative numerical examples show that the results have very good accuracy compared with the close form solution.
      
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Referring to the closed solution formula used to calculate vertical Velocity gradient β(M) from surface seismic data in J.F.Claerbout equa- tion inversion algorithm,we can directly derive a simple algorithm from β(M) integral equation by means of Fourier transform and interpolation. Because the β(M)is a δ function on reflectors,the reflector can be po- sitioned from the output of β(M).The velocity inversion of several theo- retical sections synthesized by Kirchhoff integral formulas shows that the velocity inversion...

Referring to the closed solution formula used to calculate vertical Velocity gradient β(M) from surface seismic data in J.F.Claerbout equa- tion inversion algorithm,we can directly derive a simple algorithm from β(M) integral equation by means of Fourier transform and interpolation. Because the β(M)is a δ function on reflectors,the reflector can be po- sitioned from the output of β(M).The velocity inversion of several theo- retical sections synthesized by Kirchhoff integral formulas shows that the velocity inversion method also can make seismic migration both good and fast.

参照克雷尔伯特方程反演算法中由地表观测记录计算地下介质速度关于深度变化率β(M)的闭形解公式,直接由β(M)的积分方程利用傅里叶变换和插值法,导出一种便于应用的算法。由于β(M)在反射界面上呈δ函数形状,从而可以通过β(M)的输出来确定反射面的位置。在二维情况下,通过若干个由克希霍夫积分公式合成的理论剖面进行速度反演的试算,结果表明速度反演法亦能较好地实现反射界面的偏移归位,而且具有计算速度快的优点。

This paper, Using wave equation, introduces some approximations, Ananalytical expression of the mean scattered sound intensity as a function of surface roughness, ultrasound frequency and reeiver grazingangle is developed. The theory is compared with experimental results inpaper [1], they agree very well. Therefore, the approximations introducedin this paper's theory correctly predict the scattering sound field byrough surfaces.

本文从声波动方程出发,引入了一些近似,建立了平均散射声强与物体表面粗糙度,超声频率和接收掠射角之间的闭形解析表达式。并把理论与文献报道的实验结果进行了比较,二者符合较好。因此,本文理论引用的近似在一定程度上正确地预言了粗糙表面的散射声场。

In this paper,the mean scattered sound intensity by a surface described by aLaplacian distribution of heights is calculatcd.A new formulation of the mean scattered Sound intensityas a function of surface roughness,ultrasound frequendy and receiver grazing angle is developed.Theapproximation of the results is better than that of the paper[1].

本文假设随机粗糙表面符合Laplacian分布,建立了来自粗糙表面的平均散射声强与物体表面粗糙度,超声频率和接收掠射角之间的闭形解析表达式。其结果的近似程度比文献[1]予言的更好。

 
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