查询词典 estimator

Non-symmetric kernel density estimation is first used for life-table graduation in order to solve boundary bais of symmetric kernel used in the standard kernel density estimator,and compare the symmetric kernel graduation with non-symmetric kernel graduation and obtain the satisfied result.

针对以地称核修匀方法存在着边界偏差这种现象，将非对称核密度估计用于生命表数据修匀中，提出了非对称核修匀方法，并与对称核修匀方法进行比较，得到了令人满意的结果，从而使核修匀方法得到了进一步的推广。

With the theory of hypothesis test, the sine spectral estimator can be used to detect the harmonics and to estimate the parameters exactly.

利用以上推导的多正弦窗谱分析方法提出了一种检测色噪声背景中的多频信号的测量方法。

In this paper a Nonlinear Variable Dimension Estimator is proposed for tracking maneuvering spacecraft. Two process models were incorporated by the Unscented Kalman Filter to account for the dynamic uncertainties of the target of interest: a nonmaneuvering model based on the two body problem and a maneuvering model taking the forced acceleration as the unknown system input to be estimated.

当飞行器处于无机动的巡航状态时，无色卡尔曼滤波器使用常规的二体问题模型描述其运动规律，而当飞行器被认为开始机动后，滤波器将扩展系统的状态空间，将机动加速度作为状态变量进行估计，从而增加了模型的适应性。

When the estimator is unbiased, the numerical estimate is frequently also called unbiased.

当估计量无偏时，数字估计值也常叫做无偏的。

Ui is not observable, but we can find an unbiased estimator for ui.

ui 是不可观测的，但我们能够找到一个ui的无偏

Theorem 10.3: Under assumptions TS.1 – 5, the unbiased estimator of σ2 is

定理10.3：在假定TS.1-5下，σ2的无偏估计量为

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 theoretical analysis and computer simulations demonstrate that the method is an unbiased estimator and its estimation precision is superior to the sliding correlator.

理论分析和仿真实验结果表明，时延估计的频域处理方法是一种无偏估计，且其估计精度远远高于滑动相关方法。

If Wn is an unbiased estimator ofθand Var → 0 as n→∞, then plim=θ.

如果一个θ的无偏估计量Wn的方差， Var → 0 as n→∞，则， Wn是θ的一致估计量。

Another conclusion is that CMKF is a linear, unbiased, least mean square estimator of the debiased converted measurements under certain conditions.

然后证明了在一定条件下转换坐标卡尔曼滤波算法是去偏转换测量值的线性无偏最小方差估计算法。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。