biased estimate meaning in English
偏误估计
偏向估计
有偏估计量
Examples
- Starting with the equivalence condition of admissibility , this paper discusses respectively the linear biased estimate of the regression coefficient of thee models : the g - m linear regression model , the multivariate linear regression and the mixed - effect coefficient linear model
本文以可容许性的等价条件为起点，分别讨论了g - m线性回归模型、多元线性回归模型和混合系数线性模型的回归系数的一类线性有偏估计。 - In chapter 4 , we study the outlier mining when the parameter estimate of the given linear model is not least square estimate ( lse ) but uniform biased estimate ( ube ) , and present the cook - distance based on the uniform biased estimate , which we use as an important tool in mining influence point
第四章研究了当线性模型的参数估计不是最小二乘估计而是泛岭估计时的异常挖掘,给出了针对泛岭估计的cook距离,用其作为挖掘强影响点的工具。 - In chapter 3 , we discuss the problem of doa estimation in the presence of spatially nonstationary noise fields . an estimate of the colored noise covariance matrix is firstly given . the received data for parameter estimation is then prewhitened using the estimated noise covariance , hence , overcoming the highly biased estimates . finally , adaptive beamforming with the modified weight is also performed . computer simulations show that the proposed method can completely remedy beam distortion . 3
在第三章讨论了一种在环境噪声为白噪声而阵元噪声为空间非平稳情况下的doa估计问题，给出了一种有效的估计阵元噪声功率的方法，进而利用估计的噪声协方差矩阵进行预处理而实现色噪声环境下的doa估计，理论分析和仿真结果均表明了本章提出的方法的有效性。 - Study the spectral de - aliasing method of image restoration in frequency domain , and offer the improvement with block processing and recursive rstoration to some problems . at the same time , the biased estimate theory is applied in the restoration processing . these improved steps increase the value in the use of data and decrease the time of computation
2 、研究了基于频率域的解频谱混叠方法，针对该方法存在的问题，分别提出了分块重建和循环重建，提高了重建的效率；并将有偏估计用于重建理论中，提高了影像数据的利用率。