在水印检测中使用协方差方法，减小了原数据或噪声对水印检测的影响。
Covariance is used to detect watermark, which may reduce the influence of chaos.
在水印检测中使用协方差方法，尽可能地减小了原数据或噪声对水印检测的影响。
Covariance is used to detect watermark, which may reduce the influence of initial data or chaos in partially.
也为采用某些数学方法(如协方差描述函数法)进一步研究火箭发射系统的统计性能作了必备的前提工作。
So the study makes an easy way for launching research of MLRS and prepares for applying some mathematics methods (such as CADET) in the statistic field of MLRS.
在卫星的状态估计过程中应用推广的序列估计算法，借助数值积分方法积分状态向量和协方差矩阵。
For the estimation of satellite state, the extended sequential estimation algorithm was applied. The numerical method was used to integrate state vector and error covariance matrix.
利用协方差分析方法评价教学效率，为教学的科学管理提供了重要依据。
We use the covariance analysis method to appraise teaching efficiency and provide an important basis for scientific management of teaching.
以双因素协方差分析为例，介绍如何用代数中投影的方法进行离差平方和分解。
Take the two-factor covariance analysis for example, the projection method is used to decompose the derivate square.
提出了教学效率的协方差分析分析模型，介绍了模型的参数估计及假设检验的计算公式和方法。
The paper puts forward covariance analysis model about teaching efficiency, introduces some calculation functions and methods on the point estimation and testing hypothesis about the model.
方法：在协方差分析与方差分析中使用哑变量。
Method: Dummy variable is used for analysis of covariance and analysis of variance.
给出了检验疏失误差是否存在的符号检验法和游程数检验法。并给出了存在疏失误差时如何调整实验数据协方差矩阵的方法。
The methods of sign test and runs number test of negligence error and adjustment of experimental covariance matrix are given in the work.
多重信号分类(MUSIC)算法是通过对数据协方差矩阵进行本征分解获得信号空间谱估计的方法。
MUSIC (MUltiple SIgnal Characterization) is a special spectral estimation method based on the eigen decomposition of the sample covariance matrix.
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.
研究了基于归一化协方差区域相关技术快速获取浓密视差图的方法。
The fast dense disparity map extract method based on mean normalized cross-correlation technique has been research.
为了处理这个问题，提出了一个新的方法，聚焦变换的基础上鉴别协方差矩阵，以消除噪声，并因此减少聚焦误差。
To deal with the problem, a new method of focusing transformation based on differentiating covariance matrix is proposed to eliminate noise, and hence reduce the focusing error.
本文的结果也显示了协方差改进方法的有效性。
The results obtained in this paper show also the power of the covariance adjusted approach.
利用阵列输出协方差矩阵的特殊结构，本文提出一种基于QR分解的高分辨谱估计方法及其改进形式。
In this paper, by using the special structure of the covariance matrix, a fast high resolution method based on QR decomposition is presented.
与传统的方法相比，无需对随机信号的协方差函数的功率谱进行分解，不受限于协方差函数的功率谱是否为有理式。
Compared with the traditional method, it does not need disassembling the power spectral densities of stochastic signal covariance and is not bound to if the power spectral densities are rational.
实验方法：周期图法、自相关法和协方差法。
Experimental Methods : Chart cycle, since the correlation and covariance method.
与已有的融合方法相比，文章提出的神经数据融合方法具有非偏倚的统计特性而且不需要关于噪声协方差的任何先验知识。
Compared with the existing fusion method, the proposed neural data fusion method has an unbiased statistical property and does not require any prior knowledge about the noise covariance.
表明： 基于氨基酸组成和有偏自协方差函数为特征矢量的BP神经网络预测蛋白质二级结构含量的方法可有效提高预测精度。
It is shown that the BP neural network method combined with the amino-acid composition and the biased auto-covariance function features could effectively improve the prediction accuracy.
摘要采用协方差分析方法，对油菜田除草剂的试验结果进行了分析。
Covariance analysis was used to analyze herbicide efficacy data from rapeseed experiments.
将线性混合模型中随机效应的协方差阵推广为正定阵，运用方差分析估计的方法给出了方差分量的估计。
In this paper, the covariance matrix of random effect in linear mixed model is extended to positive matrix. We construct the estimation of variance components based on the idea of ANOVA estimation.
方法应用直线相关回归、逐步多元回归和协方差分析等统计学方法分析暂时性听阈位移与听阈、噪声强度、工龄、年龄等因素之间的关系。
Method Statistical methods of linear regression, multiple stepwised regression, two-way ANOVA were used to analysis the relation of TTS with audition, noise level, working-year and age.
这种方法通过由相关函数抽样序列形成的协方差矩阵控制序列的相关性，适用于仿真具有不同概率密度函数的各种有限长相关的随机序列。
This method can control the series correlation via covariance matrix that was formed from correlation series and is suit for simulating finite correlated random series of different distributions.
介绍三种对多指标的质量控制方法，第一种方法是用一个标量控制多变量总体的均值向量和协方差矩阵；
Three approaches to Multivariate quality control are introduced. The first approach is to control the mean vector and covariance matrix of multivariate population in terms of one statistic.
最大似然法采用了迭代的方法来估计噪声的协方差矩。
The estimation of noise covariance matrix is based on iterative procedure in ML.
并采用协方差结构模型分析方法，对这些因素进行了实证研究。
Further using Covariance Structure Model, we make an empirical analysis of these factors.
提出了利用边缘点集的协方差矩阵的特征值与特征矢量作为人脸图像尺度与方向的粗估计方法，从理论和实验上证明了该方法的可行性。
A new method for human face image scale and direction estimation is proposed using covariance matrix eigenvalue and eigenvector of edge set, which is proved by theory and experiments.
在高斯假定下得到非平稳时间序列的协方差矩阵的转移形式。对一个实际的地震过程进行的数字研究结果证明本文方法是有效的。
The transition of the covariance matrix of the nonstationary time series is obtained with Gaussian assumptions. An actual earthquake is studied by the method proposed and satisfactory res…
统计方法采用逐步向前变量选择协方差分析。
Covariance analysis with forward stepwise variable selection was carried out.
这些方法大致可以分为两类：一类是基于通过率的方法，另一类是基于协方差的方法。
Most of these methods fall into two categories: based on the crossing rate and based on the covariance of the received signal.
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