误差

And then some ellipses that AUGR estimator is better than the OLS estimator and AUGL estimator is better than the OLS estimator are given, respectively.Second, the definition of the almost unbiased unified biased estimator is proposed. This definition includes the familiar almost unbiased estimators in literatures, and it is the unified expression of the familiar almost unbiased estimators. Followed the biased and variance are compared of AUUB estimator and the unified biased estimator, respectively. AUUB estimator has smaller bias than UB estimator and the variance of AUUB estimator is between the variance of UB estimator and 4 times of the variance of UB estimator. Finally the properties of AUUB estimator are discussed. The conclusion is gained that there are parameters made AUUB estimator is better than OLS estimator in terms of their mean square error. The sufficient and necessary condition that AUUB estimator is admissible is given. The ellipse is given that AUUB estimator is

然后给出了几乎无偏统一有偏估计的定义，该定义包括了文献中常见的几乎无偏估计，实现了常见几乎无偏估计的统一表达式；接下来我们比较了几乎无偏统一有偏估计与统一有偏估计的偏度与方差，得出了几乎无偏统一有偏估计比统一有偏估计有较小的偏度，几乎无偏统一有偏估计的方差介于统一有偏估计的方差与统一有偏估计的方差的四倍之间的结论；最后我们对统一有偏估计的主要性质作了讨论，证明了存在参数K，S使得几乎无偏统一有偏估计在均方误差意义下优于最小二乘估计的结论，给出了几乎无偏统一有偏估计为可容许估计的充要条件，还给出了在均方误差阵意义下几乎无偏统一有偏估计优于最小二乘估计的椭球。

The imprecise polynomial circuit optimization is based on arithmetic transformation method, considering the fixed point and floating point representation condition first, then give a realization of circuits under different accuracy boundary, trade off error with power dissipation and area, applying branch and bound method to find the solution with minimal cost, determine the minimal word length which satisfies the error bound, make use of the automation synthesis approach to get ultimate optimize structure at the same time.

非精确多项式电路优化基于算术变换方法，首先考虑电路的定点和浮点表示情况，给出电路在不同精度界限下的实现，进行误差和功耗、面积的权衡，然后应用分枝定界方法求解出最小代价电路，决定满足误差要求的最小字长，同时利用自动综合优化方法得到最终的优化结构。

And the measuring error brought by the IR drop of the medium resistance is eliminated further.

有效地解决了线性极化技术因估算塔菲尔系数所带来的理论误差，进一步消除了因介质电阻IR降的影响产生的测量误差。

The positioning error for cableway and theodolite methods is derived and analyzed in detail and the methods for reducing positioning error are pointed out .

本文对断面索法和经纬仪测角交会法的定位误差进行了较详细的推导和分析，并指明了减小定位误差的途径。

A phase error measurement circuit for calculating a phase error value comprises: a multi-phase clock generator, a memory unit, and a counter.

一种用以计算一相位误差值相位误差测量电路包括：多相位时钟产生器、存储单元、以及计数器。

Moreover,thc rationality about calculating tolerance unit by using the grometrical average is discusscd in comparison with relative reeor by using the midline value which is in a basis diameter step.

本文给出了几何平均值与算术平均值最大相对误差关系的证明，并通过对尺寸分段内按中线值的相对误差的比较，进一步论述了按几何平均值计算公差单位的合理性。

According to the characteristics of the error model, a transmitting array calibration method is proposed.

根据误差模型的特点，提出一种发射天线阵列误差校正的方法。

The system hardware circuits are also designed. 5. The model of VCR software servo system is made. The reference signals for servo system are produced by software. Based on μPD78148, the algorithm to calculate speed and phase errors for drum and capstan servo is given.

建立了录像机软件伺服系统的模型，用软件方法产生了伺服系统所需要的基准信号，提出了基于μPD78148的磁鼓伺服及主导轴伺服的速度误差及相位误差的算法。

Experiments shows that it can detect the carrier frequency and the low frequency of modulation signal as expected, the resolution of the carrier frequency is 0.3Hz,the detecting error is within ±0.5Hz, and the resolution of the low modulation frequency is 0.07Hz, the detecting error is within ±0.05Hz.

实验结果表明该检测仪能很好地检测出信号的载频和信号的低频调制信息，其中信号载频的分辨率为0.3Hz，误差范围在±0.5Hz 以内，低频信息的分辨率可达0.07Hz，信号的误差在±0.05Hz。

The distribution formulae of measuring errors in Cartesian coordinate system are derived and a step-changing processing method is proposed based on the error distribution.

对多目标跟踪问题中的关联区域进行了空间描述，得到了直角坐标系下量测误差的分布公式，提出了基于误差分布的变步长处理方式。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。