查询词典 error analysis

Then an error concealment method based on error analysis is proposed in the spatial domain.

然后提出了一种在图像空间域进行的错误隐藏方法。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

In terms of error analysis (by error scatter band method and confidence limit Intervals method respectively) for the correlation between estimated PSF and measured PSF values, it was obviously founded that PSF value could be evaluated highly accurately by in strumentation method, according to the suitable empirical equation.

估算值与实际测量值所进行的误差离散性与置信区间的分析结果表明，选用合适的经验演算法可以在试验过程中即时获得高度可靠的PSF结果。

By the co-integration analysis of the income and consumption of the rural residents in Sichuan province the existence of the long-term balance is discovered. Based on this the error correction model is established and the error correction coefficient of the deviation is described.

通过对1978-2007年四川省农村居民收入与消费的协整分析，发现农村居民的收入与消费之间存在着长期均衡的关系，在协整检验的基础上，建立了误差修正模型，说明了误差修正系数对偏离长期均衡的调整力度。

In this paper, the time constants of turbine-generator set, the adjustment error coefficient of governor and frequency error in power system are studied, mostly including introducing to of the new control performance, building model for interconnection, analysis of characteristics of turbine units and imitation of example.

本文对其中的汽轮发电机组各时间常数、调速器的调差系数以及频率偏差系数对其评价的好坏进行了研究，主要包括新的控制性能标准介绍和互联系统建模、机组特性分析以及算例仿真三个方面。

In the thesis, the error analysis of the instruments and error correction curve is presented, so the measurement accuracy is relatively high.

论文中分析了仪器的误差，并画出了误差校正曲线，以达到提高了测量精度的目的。

Depending on the error analysis of the strap-down inertial navigation system, the error equation of this system is given.

在分析捷联系统误差的基础上，给出了系统的误差方程。

The sources of measurement error are analyzed, and the steps and results of error analysis are shown.

结合光散射式数字粉尘测试仪的实际应用，总结了使用过程中应注意的事项。

A variable-step modified Euler time integration method is proposed and analyzed. Four major factors that affect the efficiency of the variable-step modified Euler time integration method are discussed. These include stability and accuracy analysis for the damped fix-step modified Euler integration formula, adjustment method of the fix-step basic integration formula to accommodate step-size changes, suitable range of the step-size selection strategy based on truncation error concept and development of the step-size selection strategy based on apparent frequency concept to satisfied the specified error bound and stability condition.

提出了变步长修正Euler时间积分法，详细讨论了影响变步长修正Euler时间积分算法效率的四个主要因素，它们包括：有阻尼问题的修正Euler法的稳定性和精度分析，调整固定步长的基本积分公式使之容纳步长大小变化的研究，基于截断误差概念的步长大小选择策略适用范围的讨论，同时满足规定误差界和稳定性条件的、基于表观频率概念的步长大小选择策略的建立。

The thecretical analysis is done for the problems of the integral initial values, the accumulated error and the excursive error induced by numerical integrals. It is found that these errors possess characteristics of lower frequencies and they can be treated as the low frequency noise.

针对积分初值、数值积分积累误差和数值积分引入的偏移误差进行了理论分析，得出此类误差均具有低频特性的性质，可作为信号低频噪声进行处理。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样