因为这时模型协方差阵结构仍含有方差参数，因此我们的目标是寻求可行估计。
The variance-covariance matrix still include parameter of variance in this condition, so our purpose is to look for feasible estimations.
本文作者的目标是应用二次优化理论以获得一般情况下的最优权系数，所得结果突破了前述的方差阵的限制。
In this paper, the authors aim to use quadratic optimization theory in obtaining generalized optimal weights, whereby, the restriction on the covariance matrix is just a mere special case.
算法同时利用目标方差特性以减少虚警率。
The standard variance characteristic of target data is used to reduce false alarm rate.
为解决目标跟踪精度与观测时间间隔的矛盾，提出了一种基于目标状态估计协方差控制的观测时间确定算法。
To solve the contradiction between target tracking accuracy and observation interval, an algorithm of calculating observation time based on target estimate covariance control was presented.
对于海面图像，分别采用感兴趣舰船目标区域的方差值、目标和背景亮度对比度这两个特征对目标进行融合识别。
As to sea image, the variance feature of region of interest and the luminance contrast feature between target and background are used to fusion recognition.
研究结果表明利用三阶标准矩并结合方差平衡的特征处理技术可有效地实现对目标的识别。
Experiment results show that the order three standard moments with the variance balancing technique can classify aircraft effectively.
以柔性机构的变形边界与目标边界间的最小平方差(LSE)为优化目标。
The objective for the optimization is to minimize the least square error (LSE) between the deformed boundary and the target boundary.
该方法利用动态规划理论中代价函数的建立过程来充分考虑图像中的灰度、均值、方差、光滑程度和纹理等多种特征，从而使目标检测的结果为最佳。
Using images' features such as gradient, mean, variance, degree of smoothing and texture characteristics to establish cost function may obtain the best results of target detection.
在图像中利用粗糙集理论对图像特征数据进行有效约简，并和最大类间方差法结合，将图像分为目标和背景两部分。
Based on the Rough Set Theory, the image data is simplified and classified into targets and backgrounds with the combination of the OTSU method.
以邻域熵目标检测为基础，提出了一种基于邻域方差增长的相关峰光斑自动定位算法。
A correlation peaks allocation algorithm based on neighborhood variance increment is presented, which is on the foundation of neighborhood entropy.
该算法以低通滤波算法估计背景中的低频成分，及图像局部方差估计背景起伏，来计算出局部自适应的目标检测判决门限。
The algorithm adopts low pass filter to estimate the background and calculates the standard deviation to estimate the fluctuation of background to get the local adaptive detection threshold.
研究结论是，在效用最大化对冲目标的基础上，股指期货动态对冲策略的有效性优于最小方差对冲策略。
And the final result indicates the hedging effectiveness of dynamic stock index futures hedging strategy is better than minimum-variance hedging strategy.
该算法首先利用分块高阶统计算法和基于最大类间方差的阈值算法得到目标的运动区域检测模板。
First, block higher order statistics and threshold via local maximal between-cluster variance are used to get the motion detection mask.
由目标的实测数据，计算特征向量总体的均值和协方差矩阵及其逆矩阵，由距离判别法进行目标识别。
The mean and covariance matrixes and their inverse matrixes of all eigen vectors are obtained through measured data of the target. And the target is recognized by techniques of range discrimination.
质量管理体系中，质量改进的目标是生产管理零缺陷，并使长期的过程均值接近目标值，过程方差接近零。
In modern quality management systems, the objective of the quality improvement is to have a zero-defect product, and to make the process mean closing to its target, the variance closing to zero.
综合利用红外图像灰度特征与可见光图像灰度以及分维数方差特征，提出了一种复杂背景下多目标分割算法。
Synthetically utilizing features coming from infrared images and visible-light images, a novel segmentation algorithm is proposed to deal with multi-target in complicated backgrounds.
介绍了组网雷达系统中两种确定目标高度的算法及方差分析情况。
In this paper two algorithms is presented for aircraft geometric-height estimation by three distance measurements or two distance and azimuth measurements from radar stantions.
在对采集的实时序列图像进行滤波处理后，本文通过改进最大类间方差法，并将其和自适应波门跟踪方法结合起来实现运动目标的跟踪。
After preprocessing the sampled real-time image sequences, moving target tracking is realized by combining improved Ostu algorithm and adaptive window tracing method.
本文提出一种新的多目标阵列接收信号协方差矩阵的去噪方法，并对结果进行了计算机模拟。
A new method of removing noise, which is based on multitarget array covariance matrix of received signals, is developed in this paper. The results obtained by the method are simulated by the computer.
通过比较图像序列的颜色方差，将方差低于设定阈值的像素识别为遮挡物，从图像序列中删除后再进行目标重构。
Occlusions are identified by estimating the color variance on elemental images and then deleting it in the final synthetic image.
其次，分别建立了雷达测量误差、初始对准误差和惯性元器件误差与导弹位置、姿态测量误差和目标位置测量误差的关系，并得到了其误差影响的方差表达式；
Then, a variance analysis method was used to analyze the seeker pointing angle error caused by airborne radar measurement noises, initial sensor errors and initial misalignment.
重权数方法与重抽样方法类似，也是利用计算机的优势通过重复获得大量不同的子样本的重权数估计目标参数的估计量和方差估计量，是一种稳健、通用、有效的方差估计方法。
Replicate weight, which is similar with replicated sample method, gets a lot of replicated weights to obtain the estimators by computer, it is also a robust, common and effective method.
Cpm是一个总体的能力指数，定义了均值偏离目标值的均方差的平方根和规范宽度的之间的比值。
Cpm is an overall capability index defined as the ratio of the specification spread (USL - LSL) to the square root of the mean squared deviation from the target.
Cpm是一个总体的能力指数，定义了均值偏离目标值的均方差的平方根和规范宽度的之间的比值。
Cpm is an overall capability index defined as the ratio of the specification spread (USL - LSL) to the square root of the mean squared deviation from the target.
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