查询词典 truncation error

The truncation error of its local discrete energy conservation law is also exhibited.

用多辛Euler方法离散此方程组得到了它的多辛格式，并且推导了它的局部能量守恒律的离散误差。

Similarly, the paper also makes an analysis of the effect that the truncation error of finite scanning has upon the far-field pattern and then introduces the consequent method of compensation.

随后分析了扫描面截断误差对远场方向图的影响，并给出了相应的补偿方法。

The flux imbalance of the output transformer is induced by the accumulation of the truncation error, and the digital control algorithm is modified with real time bias correction signals.

研究并解决数字控制的时间量化和数值量化对基于数字信号处理器的逆变电源系统性能的不良影响。

The truncation error of finite differential method in solving the model is reetified.

在河流水质模拟研究中，又以确定性水质模型应用最为普遍。

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。

We show a multi-symplectic scheme for the equations by the multi-symplectic Euler method. The truncation error of its local discrete energy conservation law is also exhibited.

用多辛Euler方法离散此方程组得到了它的多辛格式，并且推导了它的局部能量守恒律的离散误差。

Firstly,the differential equation with parameters is given,at the same time,in order to let the truncation error of differential equation reach O(Δt~2+Δx~4) as high as possible,the method of undetermined coefficent is used to appropriately select the expression of these parameters.Secondly,the stability condition of the scheme derived is given by using the Fourier method of stability analysi...

首先给出了含参变量的差分方程，并用待定系数法适当地选取了这些参数的表示式，以使差分方程的截断误差阶尽可能高地达到了O(Δt2+Δx4)；其次用稳定性分析的Fourier方法给出了所得格式的稳定性条件；然后给出了确定差分格式中参数的两种方法，得到了一个稳定性条件为r/3的分支稳定的高精度显式差分格式；最后给出了数值例子，数值结果表明了本文格式较现有同类格式的优越性和理论分析的正确性。

At the same time we brought forward a simulation of the forward collision warning model with 29dof vehicle model developed by State Key Laboratory of Automobile Dynamic Simulation of JiLin University, simulation showed that the model realized the expecting request. 3、It is the membership function of evaluation index that caused flat effect of some certain index and also because of truncation error of computer that the model can not identify relative safety of safe points and unsafe points.

在对驾驶员最优预瞄加速度模型的研究过程中，发现原有模型模糊决策环节的四个评价指标中由于部分指标采用了分段函数作为隶属函数而导致评价指标的平台效应，进而影响到相对接近度指数出现平台效应，又由于计算机截断误差的存在，导致相对接近度指数无法分辨绝对安全点的相对安全性和绝对危险点的相对安全性。

This paper measures the fault vibration signal of the sun-gear in planetary gear box. Bring forward a new arithmetic of time-field average which settle the problem of cycle truncation error affect the result of averaging in substance.

但这些信号又往往被伴随产生的噪声干扰，在噪声较强时，不但信号的时间历程显示不出规律性，而且在频谱图上这些周期分量很可能被淹没在噪声背景中。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。