均方根误差

One case is the earthquake on 21 September 1999 near Chi-Chi in central Taiwan.

在集集地震所产生的地表侦测部分，因为台湾中部地区繁密的植物覆盖及地震引起的变动产生不相关性，使得断层东边地区因低相关性而无法侦测变动情形；但断层西部因地势较平坦且变动量亦较小，因此以干涉技术可以清楚的侦测出其变化情形。D-InSAR与GPS资料都具有高精度的侦测结果，在垂直方向的比较结果均方根误差为3.3 cm，两者具有相当的一致性，因此在地震的变形侦测中，两者的量测资料可以有良好的互补作用。

The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

在傍轴近似条件下，可以利用光强传播方程对畸变波前进行相位恢复。对于衍射受限的光学系统，很难获得相位的边界径向斜率值作为边界条件，此外，要获得精确的圆域边界采样值也并非易事。为了克服上述困难，进一步研究了相位恢复改进方法，即改变了方程的表示形式、计算区域和边界条件，并用多重网格法进行求解获得重构相位，最后再将其修正。为了验证算法的精确性，搭建了实验系统对算法进行实验验证，将由CCD探测的光强分布进行计算得到的相位分布与相位恢复算法的结果进行比较，证明在光强分布非均匀的情况下，该方法恢复的相位均方根误差能够达到017 λ，可以适用于波前传感精度要求不是很高的相位恢复。标签自适应光学相位恢复相位修正光强传播方程 adaptive optics phase retrieval phase correction intensity transport equation

Techinque such as coefficient of determination, parameter hypothesis testing of models,root mean square error .

整理并修正各种近红外分析模型的精度评价标准、方法，包括评价模型拟合度的决定系数，回归参数的假设检验；检测模型预测精度的均方根误差及残差分析。

The results of the test data indicate that the prediction system is reliable and the root of mean square error is about 15%.

对测试数据的预测结果表明，该预测系统能够可靠工作，预测结果的均方根误差在15%左右。

The process of which is to solve the integer programming problem with the objective function that RMSE is minimal.

选择最优参数的过程即是对以均方根误差最小为目标的整数规划问题的求解过程。

In one embodiment, the parameter estimate is an estimate of time of arrival of the signal, and the reliability metric is root mean square error of the time of arrival estimate.

在一实施例中，参数估计是信号的到达时间的估计，可靠性度量是到达时间估计的均方根误差。

The theoretical analysis and Monte Carlo simulation methods are used to compare the traditional fusion algorithm with the new one.

应用理论分析和蒙特卡洛仿真方法，对标准卡尔曼滤波算法和简化的滤波算法进行了比较，并给出了均方根误差的统计值。

The RMS error compared to radiosonde observation is 0.29 g/cm^2, and the correlation coefficient is 92%.

结果表明，反演值和探空均方根误差RMS=0.29g/平方公分，相关系数在92%。

The experimental results show that the proposed method can obtain good performance in terms of both objective evaluation criteria such as root-mean-square error,signal-to-noise ratio,mean error and visual subjective evaluation criteria.

实验结果表明，无论是依据均方根误差、信噪比、灰度平均误差等客观评价标准，还是视觉的主观评价，所提出的融合方法都能取得较好的性能。

According to the information of relative orientation from the airplane to airborne anti-submarine buoy, the mathematical model, adopting extended Kalman filtering technique, and simulation algorithm for calculating the buoy position are established in this paper. In respects of the relative position error and RMS error, the simulation results show the error performance of this system.

根据航空搜潜声纳浮标与飞机的相对方位信息，采用扩展卡尔曼滤波技术，分析了计算浮标位置的原理、方法，建立了相应的系统模型和仿真算法，从估计的相对位置误差和均方根误差两个方面，仿真分析了系统的误差性能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。