参数估计

The algorithm tracks the changing rate of each coordinate transformation parameter through Kalman filter to facilitate better prediction of the initial searching point. More importantly, the powers of the noise models of the Kalman filter are effectively estimated online rather than making artificial assumptions on their values. The algorithm can hence adapt to various target motions and searching precisions in a real-time manner without any manual intervention.

该算法通过对坐标变换参数的变化率进行Kalman滤波来更好地预测初始搜索点；更重要的是，该算法有效地在线估计Kalman滤波器中的模型噪声功率，而非先验地对它们的取值做出假设，因而能够在没有任何人工干预的情况下动态地根据不同的目标运动状况和搜索精度进行实时调整。

As for the 3rd-order transversal filter, we establish an algorithm for quick estimation of the related electrical parameters to be determined.

对於三阶的横断式滤波器，我们建立一套快速估计相关电路参数的法则。

In this paper,the truncated error of trapezium methodis 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采样数字化测量的典型算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；在电网正常情况下截断误差与采样点数的关系与理想波形时相同。

It is used in the implementation of trinomial protocol to detect packet losses and to adjust the sending rate.

再次，给出了一种新的基于信息理论和最大熵原理的变参数自适应RTT和RTO估计算法，在三项式协议实现过程中用于探测丢包及速率调整。

The function and numbers of udder gland are discussed for milk performance.

研究了吐根堡奶山羊乳房性状的变化来源和规律，对重要遗传参数进行了估计，探讨了乳腺体的功能与生产性能的关系，讨论了乳房相关性状在育种工作中的主次关系。

This paper puts forward a long memory stochastic conditional durations model for ultra-high frequency durations series,and provides a kind of spectrum likelihood estimation method.

文章针对股票市场的超高频持续期序列，提出了长记忆随机条件持续期模型，并给出了模型参数的极大谱似然函数估计方法。

Because of the importance of the detection of R-wave position, this paper also proposed a filtering method for exercise ECG signal, which is based on Wavelet Transform and Stein's Unbiased Risk Estimate. Our experimental results demonstrate that the myoelectric disturbances and baseline drift in EECG signal can be removed efficiently, which affords the solid foundation for the further evaluation and study of people's sub-healthy state in various vocations.

此外，由于心音和心电的所有参数分析都是基于心电R波的正确定位后进行的，作者结合小波变化和似然无偏估计，提出了运动心电信号的伪差消除法，经过实验论证，本算法能有效消除运动心电信号中的基线飘移和肌电干扰，为进一步研究分析评估不同行业人群的亚健康状态提供了新途径。

Under assumptions MLR.1 through MLR.4, the OLS estimators are unbiased estimator of the population parameters, that is

在假定MLR.1～MLR.4下，OLS估计量是总体参数的无偏估计量，即

The first procedure uses the GAMIT software to estimate parameters such as station position and orbital trajectory on a daily basis for a given 24-hour interval from the union of three data sets:(1) the campaign stations,(2) the continuously operating GPS stations in Antarctica,(3) long-running continuous GPS stations around Antarctica. In the second procedure, we combine the daily solutions with global GPS sub-networks (IGS1, IGS2, IGS3), which is provided by Scripps Institution of Oceanography, using the GLOBK software in a "regional stabilization" approach in order to estimate the positions and velocities.

数据处理分为两步，第一步：运用GAMIT软件进行单天解算，估计站位置、轨道等参数，其数据源主要有以下三类：(1) SCAR GPS观测站；（2）南极的连续跟踪站；（3）南极及其周边的部分IGS站；第二步：运用GLOBK软件加入SOPAC（Scripps Orbit and Permanent Array Center）的全球GPS子网（IGS1、IGS2、IGS3）进行全球网平差解算测站位置和速度。

Based on the unit quaternion decomposition of rotation matrix, this paper puts forward an algorithm to estimate motion parameters from the space position vectors of 3D feature points.

摘要本文基于旋转矩阵单位四元数分解定理，提出一种由3D特征点空间位置估计运动参数的算法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。