查询词典 computational error

Simulations show that when the signal to noise ratio is greater than 0dB, the inverse model algorithm converges rapidly and stably with computational error being within a minimal bound.

仿真结果表明在信噪比大于0dB时，该自适应逆模型算法收敛迅速、稳定，计算误差保持在较小的范围之内。

The other is called Householder transformation method, in which the matrix of inconsistent equation group is orthogonalized and triangulated using Householder transformation, and then the Zernike coefficients can be worked out by using a backsubstitution technique. It is proposed for the first time. Being a method that can avoid the computational error effectively and can be easily performed, it has proven to be a feasible and efficacious algorithm.

特别是第二种方法由本文第一次提出，它避免了构造法方程组，从而避免了以前的方法因构造的法方程组出现严重病态而引入的计算误差，并且易於编程，因而是一种比较理想的实现Zernike多项式拟合的算法。

One research institute has integrated GEN2000 into its infrared simulating package, and computed spatial distribution of infrared properties from one real high-speeded engine exhaust system, the results were compared with experimental data. Through comparation we can see: relative error between computational and experimental results is less than 30%, the spatial distribution of infrared properties is basically accord.

某研究所将本文设计的计算程序GEN2000合成到其红外模拟软件包中，计算了某型实际发动机高速排气系统红外辐射特性的空间分布，并与发动机试车实测数据进行了分析比较，结果表明：计算结果与实测结果的最大相对误差不超过30%，红外辐射的空间分布基本一致。

Simulation result for an actual boom shows that the incremental equations, derived from infinitesimal increment, can be used widely, and the computational error makes a slightly trajectory deviation from reference straight line, which would not influence the final position, which is important in actual situation.

针对某实际钻臂的仿真结果表明，增量算式尽管是在微变情况下推导的，在偏差较大的范围内应用时其计算误差对定位过程影响不大，体现在钻臂轨迹于隧道断面的投影不是直线，同时不会影响最终的控制精度，可以用于实际控制。

Simulation results show that the proposed algorithm has a faster convergence rate and much less computational complexity, and the output bit error rate and signal-to interference-plus noise ratio performance are superier to the PASTd blind multiuser detection algorithm and close in on the singular value decomposition group blind multiuser detection algorithm.

仿真结果表明，所提算法收敛速度快，输出信干噪比和误码率性能优于PASTd盲多用户检测，逼近奇异值分解(singular value decomposition， SVD)群盲多用户检测，并保持了较低的计算复杂度。

A high accuracy finite volume element method was given based on cubic spline interpolation for linear and nonlinear twopoint boundary value problems of ordinary differential equations. The computational scheme was derived and the property of positive type was discussed. Further we presented the convergence analysis and the scheme was proved having fourth order error estimate in discrete energy norm.

针对常微分方程线性和非线性两点边值问题，提出了基于三次样条插值的高精度有限体积元方法，给出了具体计算格式，讨论了格式所具有的优良性质--正型性，并应用能量方法给出了收敛性分析，证明了格式按照离散能量模具有四阶精度。

Compared with standard Crank-Nicholsonscheme in the same computational time and resource, the method has two characteristics: small truncation error of in the transverse direction and high accuracy. It is a useful tool for designing optical waveguide devices.

与标准格式的有限差分光束传播法相比，该算法在几乎不增加计算时间和计算机内存资源的情况下，结合了道(来源：122eA22BC论文网www.abclunwen.com)格拉斯格式的有限差分光束传播法截断误差小和宽角多步法所具有较高精度的优点，是光波导器件理想的数值模拟工具。

Compared with Crank-Nicholsonscheme in the same computational time and resource, the method has two characteristics: small truncation error of o 4 in the transverse direction and high accuracy.

在诸多的计算方法中，有限差分光束传播算法(Finite differencebeampropagationmethod ，FD BPM算法) [2 ] 是一种目前光波导器件中分析模拟光波传输应用最广泛有效的分析方法之一。

With the knowledge of linear algebra, general formula for arbitrary order Taylor finite difference has been derived. In this paper, the analysis of spectral property and computational error of arbitrary order TFD is presented in detail. Then it is applied into the numerical solution of Maxwell's equations. Stability condition and numerical dispersion relation are derived.

本文借助于采样定理，详细分析了不同阶Taylor中心差分格式的谱特性以及计算误差，并将任意阶Taylor中心差分格式用于数值求解麦克斯韦方程中，严格导出了稳定性条件和数值色散关系的表达式，引入了新的误差定义来衡量算法的好坏。

Theoretical analysis and comparison between computational results and experiments show that crossflow diffusion caused by grid lines is the most important error and grid line justification is the effective way to decrease crossflow diffusion.

理论分析和数值与实验间的比较结果表明，由于网格线的不合理布置导致的伪扩散误差是切向燃烧流场模拟中的主要误差。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。