1) phase truncation error
相位截断误差
1.
The spectrum characteristics of the phase truncation error and amplitude quantization error are analyzed by the method of Fourier series.
介绍了直接数字频率合成技术以及分析其杂散误差,对相位截断误差和幅度量化误差进行了傅立叶级数分析研究。
2.
This paper introduces the theory of the phase-locked loop (PLL) and the direct digital synthesis (DDS) , a method to improve the precision of DDS and reduce its phase truncation error is also given.
介绍了锁相环(PLL)技术和直接数字式频率合成(DDS)技术的基本工作原理,给出了一种提高DDS输出频率精度及减小其相位截断误差的方法。
3.
This paper analyzes the processing of direct digital frequency Synthesizer and get the relation of phase truncation error and frequency control truncation word.
通过分析直接数字频率合成器的工作过程，利用相位截断误差与频率控制截断字的关系，给出了频率控制截断字对杂散的分布及幅度的影响，提出了利用频率控制截断字计算杂散的方法，从而减小了频率混叠对计算杂散的影响。
2) truncation error
截断误差
1.
An Integral and Recursive Filtering Method for Truncation Error Minimization and Outlier Suppression;
减小截断误差并抑制野值的积分递归滤波方法
2.
Using Error Theorem to Reduce the Truncation Error Produced in Calculating the Velocity and Acceleration of Spacecraft;
利用差值定理降低飞行器速度和加速度拟合的截断误差
3.
The studying of a fusion approach to estimate and compensate the differential truncation error using tracking and telemeted data;
微分截断误差的遥、外测数据融合估计和补偿方法研究
3) truncation errors
截断误差
1.
An especial structural model is obtained through corrected truncation errors of finite difference and the gray numerical arithmetic solving this kind model is given.
在数值求解过程中,对一维河流水污染的灰色模型求解过程中有限差分法的截断误差进行了修正,得到了具有一种特殊结构的数值模型,并给出了求解方法。
2.
From the relation of spatial disturbing gravity and ground gravity data resolution as well as its scope, truncation errors are computed by dividing the gravity anomaly into frequency and resolution.
根据外空扰动重力与地面数据分辨率及其覆盖范围之间的关系,将重力异常分成不同频段、不同分辨率,分别计算了截断误差。
4) Truncated error
截断误差
1.
The truncated error of trapezoid method, a classical algorithm, is analyzed for sampling power parameter AC in-phase virtual value and the relationship between the error and the amount of sampling points is offered: the truncated error is square inverse ratio with the amount of sampling points.
对电力参数交流同步采样有效值测量的典型算法梯形法的截断误差进行了分析,给出了与采样点的关系:与采样点数N的平方成反比,N>26,有近0。
2.
In this paper,the truncated error of trapezium method(a classical algorithm)is analyzed under ideal state of electrical power parameters,a sin function,when sampling digital measurement and the relationship between the error and the amount of sampling points is offered.
对电力参数的理想情况(标准正弦量)采样数字化测量的典型算法(梯形法)的截断误差进行了分析,给出了误差与采样点数的关系;根据国家关于电能质量和公用电网谐波的标准规定,对非正弦状态下的误差也做出了符合实际的估计;在电网正常(允许畸变)情况下截断误差与采样点数的关系与理想波形时相同。
3.
In this paper we discuss the truncated error estimate on Shannon sampling theorem of bandlimited functions.
讨论带限函数的Shannon采样定理截断误差的点态、一致和积分3种估计。
5) local truncation error
截断误差
1.
The local truncation error of the method is O(Δx~4).
对于四阶杆振动方程初值和周期边界值问题,提出了截断误差阶为O(Δx6)的精细时程积分法。
2.
The local truncation error of the method is 0(△x4).
对于RLW方程初始值与周期边界值问题,提出局部截断误差阶为O(△x4)的精细时程积分法。
3.
The stability condition and local truncation error for the schemes are discussed.
对求解三维热传导方程利用待定参数法构造出一族对称的含参数的,截断误差为O的便于计算的三层显格式,并讨论了其条件稳定性。
6) truncation error
舍位误差，舍项误差，截断误差，方法误差，公式误差
补充资料：截断误差
求一个级数的和或无穷序列的极限时，我们取有限项作为它们的近似，从而产生了误差，这种误差称为截断误差。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条