系统误差

In view of this problem,a parameter extremum optimization model is developed,in which such error factors as the decaying DC components,nonsynchronous sampling and harmonics are precisely depicted.A new measuring method based on the hybrid genetic algorithmis developed to use this model for finding accurate power system parameters such as the amplitude,phase,frequency and harmonics.

针对这一问题，建立了电力参数极值优化模型，同时对衰减直流分量、非同步采样及谐波等多个误差参数加以精确表示，利用混合遗传算法对该模型进行求解，可得到准确的系统幅值、相位、频率及谐波等电力参数。

In this paper, Neural Network and Combined Wavelet Transform with Neural Network for OCPD are studied systematically. It also eliminated the artificial influence in oscillographic determination, enhanced the automatization degree of OCPD.

本论文对神经网络及其与小波变换相结合用于示波测定进行了系统的研究，较好地消除示波测定中人为误差的影响，提高了示波测定的自动化程度，全文共分四章。

He said that although some satellite "overage", but the system is unlikely to fail, there is likely to be a minor error accuracy.

他表示，虽然有的卫星&超龄&，但系统完全失效的可能性不大，很可能只是准确性出现细微的误差。

Basing on theory analysis and computer simulation,the method of a parabolical curve interpolation is applied to correct this error, and this metmhod is also realized with a microcomputer in a TV tracking measuring system.

本文在理论分析、计算机仿真基础上提出用抛物曲线插值方法对该项误差进行校正，并用微机在一电视跟踪测量系统中实观。

According to the character and advantage of partitional modeling, we construct the SD model of anaerobic reactor which is fed by glucose, and used a different calculation way for different blocks. Comparing with the lab data, errors between SD model, test data, and Andrews' model is less than 10%.

根据分块建模的优势及特点，对模型中的3个子系统采用不同的计算方式，通过对比模拟结果表明，SD模型静态模拟结果与实验数据、传统结构模型模拟结果之间的误差0%，动态模拟结果与实际趋势一致，说明SD模型的模拟结果是可信的。

Moreover, it decreased the possibility of phasic errors generated by the system.

减少了雷达系统的相位误差。

SLMS systems reduce the potential spectral errors usually associated with photopic detector-based measurement systems.

SLMS因通过了适应光探测型测量系统而减少了潜在的光谱误差。

In the first part, first of all, we have a priori estimate for solution of the reaction-diffusion equation with initial condition and Dirichret boundary conditions. Then, we construct a semidiscrete Legendre pseudospectral scheme, and have a priori estimate for approximate solution. We discuss the asymptotic stability of approximate solution. At last, we get a error estimation on large time for solution of the semidiscrete system.

首先，对此类方程初边值问题的解进行了先验估计；然后建立方程半离散的Legendre拟谱格式，并对近似解进行了先验估计，讨论了近似解的渐近稳定性；最后，得到了半离散系统解的长时间误差估计。

This control scheme guarantees the global stability of the closed-loop system and makes the tracking error tend to be zero and quadratically integrable.

该控制器能保证系统的全局稳定性，跟踪误差趋于零并且是平方可积的。

The basic iterative algorithm and the error spreading induced by the method were quantitively analyzed, and the certain relationship between the image spatial resolution and the image SNR was also presented.

在建立系统工作模型的基础上，对基本递推算法和由此引入的误差扩散效应进行了定量化分析，并初步给出图像信噪比和图像空间分辨率之间的量化关系。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失