采样误差

It is determined that the sun vector measurement error is about 5.74° which is caused by many factors, such as the non-ideal cosine curve between incident angle and photocurrent, the photocurrent noise, the nonlinearity of the analog circuit and the A/D converter, and the temperature inaccuracy etc.

通过分析获得太阳入射角——光电流非理想的余弦特性、光电流的噪声起伏、处理电路非线性、A/D采样非线性、温度测量不确定性等因素导致的太阳矢量实际测量误差为5.74°。

The error signal is smoothed by loop filter, then it is used to change the control register of interpolator and decimator: The proposed algorithm can track the frequency shift of sampling clock. The algorithm is simulated in both AWGN and multipath fading channel.

这种方法在发送端相邻载波间采用差分QPSK调制，在接收端利用QPSK的差分解调信号获得同步误差信号，从而获得关于OFDM符号同步和采样钟同步调整的算法，其特点是无需专门的同步导频信号。

In the case of determinacy time-base distortion, Author analysis two time-base distortion estimate arithmetic in common use.

对于造成采样时基误差中的确定性时基偏差问题，从理论上分析了在工程应用中两种常用的时基偏差估计算法估计性能优缺点，并利用仿真实验进行验证。

At the first, the principle of the direction finder is discussed and its system configuration is introduced.

本文首先论述了该定向仪的原理及系统组成，之后又介绍了该定向仪的设计工作并进行了较为全面的误差分析。8940定向仪的一个突出特点是采用了数字采样方式对副载波进行解调而获得多普勒测向信息。

A cat's eye with its holder construction has been designed and applied to the system. Through defining the acceptance angle and the entrance angle of the cat's eye, its reflective characteristic has been analyzed under the condition of practical application.

偏振分光镜、猫眼、波片及调整误差是引起光能损失、导致干涉光强下降的重要原因，通过选用高精度石英λ/4波片、光信号采样用平板玻璃分光镜及镀增透膜等措施，使光能损失大大减小。

At the same time, the thesis points out more calculated data and more accurate on fire localization results. It is beneficial to decrease fire localization error by increasing band width of FIR filter to solve the problem of insufficient sampling points at an early stage of fire.

本文还通过仿真结果指出在带通滤波器的基础上，计算点数越多，定位估计就越准确；在火灾前期，输入的采样点数不够多的情况下，适当加宽带通滤波器的频率上限，有助于减小火灾定位误差。

On the basis of integrator of basic readout approch,improved sensing strategies with correlated double sampling to supress low frequency noises and offset,and canceling charge injection induced by switches.

在研究检测微小电容变化量的积分电路的基础上，进一步采用了可抑制低频噪声和漂移的相关双采样技术，以及抑制由开关的电荷注入引起的误差的技术。

Based on the integrator of basic readout approach,improved sensing strategies with correlate d double sampling are adopted, which can suppress low frequency noises and offse t, and cancel charge injection induced by switches.

在研究检测微小电容变化量的积分电路的基础上，进一步采用了可抑制低频噪声和漂移的相关双采样技术，以及抑制由开关电荷注入引起的误差的技术。

The digital algorithms of integral and discrete wavelet transform are presented for purpose of electric power system protection, based on the analysis of wavelet transform for sampled digital signals under the Shannon sampling theorem.

从电力系统继电保护应用的角度，结合香农采样定理，深入探讨了连续信号和离散信号的小波变换的关系，给出了离散信号的积分小波变换和离散小波变换的数字计算方法。从理论上研究了信号小波变换的误差与尺度函数和小波函数的关系。

Two algorithm for region partition based on distance space clustering and random sample are found.The limit of initial value error is given.

建立了基于距离空间聚类和基于随机采样两种区域划分算法，并且给出了圆心初值误差的极限。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。