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- In the present investigation, new calibration approach combined regression estimator is proposed, and asymptotical variance estimator of the proposed estimator is given. 本文提出了分层抽样中的校正组合比率估计量，并推广到分层双重抽样中。
- In fact, we can choose the estimator of which the variance estimation is smaller. 在实际应用中，本文也提出了通过比较方差估计作为选取估计量的准则。
- This paper describes various pulse shaping methods applying active filter, time variance filter and transversal filter to improve energe resolution of spectrometer at high counting rate. 本文介绍用有源滤波器、时变滤波器和横向滤波器等脉冲成形方法来提高能谱测量系统在高计数率条件下的能量分辨率。
- Least generalized residual variance estimator 最小广义剩余方差估计量
- Allan variance estimated by simulated noise and calculated theoretically using power law model are well matched. 采用白噪声通过FIR滤波器的方法近似地模拟了闪烁噪声。 模拟相噪得到的Allan方差估计值与幂律模型得到的Allan方差理论值符合得较好。
- Noise variance estimation is first performed in the algorithm.In the end, wavelet transform is applied to denoise the corrected image. 该算法通过对多视点图像信号噪声方差进行估计，并利用小波变换滤除校正后多视点图像的噪声。
- An Improved Version Control Method OF Time Variance Dimension 一种改进的时变维度版本控制方法
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨，他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- In this case optimally weighted LS estimate is not a linear estimate of a parameter given input and observation anymore and can not be compared with linear minimum variance estimate. 在这种情况下，最优加权最小二乘估计变成关于观测和输入的非线性估计，且与线性最小方差估计不可比。
- I need some time to orient my thinking. 我需要一些时间来使我的思想适应。
- Variances Estimation of A Sequence Forecasted by An Autoregression Model. 自回归模型的预测方差估计。
- Research of hierarchy version control method aiming at time variance dimension 时变维度层次版本控制方法研究
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- At that time he had two helpers. 当时他有两个助手。
- Linear minimum variance estimation 线性最小方差估计
- I'm sorry to obtrude on you at such a time. 我很抱歉在这个时候打扰你。
