查询词典 estimating

A novel signal processing technique using the Eigenvector algorithm for estimating sky wave delays in Loran-C receiver has been presented in this paper.

提出了一种基于特征向量算法来估计Loran-C接收机天波延迟的信号处理新技术，为设计具有自适应调节最佳采样点的Loran-C接收机打下良好的基础。

And then an improved approach is proposed for estimating the SNR of SDR receiver.

进而提出一种改进的估计SDR接收机信噪比的方法。

Secondly, according to the spectral correlation theory of second order cyclostationary processes, maximumlikelihood filters are used to estimate the cyclic spectra. By estimating the crossspectra of the two frequency shifted versions of cyclostationary signal, the cyclic spectra can be obtained. The analysis effective bandwidth of maximumlikelihood filters is studied in details. In case of cross-spectra estimation, the analysis effective bandwidth of maximum-likelihood filters is not correct. A new method to calculate the analysis effective bandwidth is presented.

第二，根据二阶周期平稳随机信号的谱相关理论，提出了循环谱密度估计的最大似然滤波器法，即采用最大似然滤波器估计出周期平稳信号的两个频移分量之间的互谱密度，从而得到了循环谱密度的估计；对最大似然滤波器的有效分析带宽做了详细的分析，指出了在互谱密度估计时以往的有效分析带宽不正确，并提出了互谱密度估计时的有效分析带宽的新的计算方法。

In this paper,two new methods of estimating are given and proved for the upper and lower bounds on the spectral radius of a nonnegative matrix ,which is based on two special matrices.

借助两个新的矩阵得到非负矩阵谱半径的两个新估计及其证明，并通过实例与以往的结论作比较，验证了这些估计的有效性及精确度。

Objective To understand the change of the cardiovascular function and to evaluate the usefulness of sphygmography and heart rate variability spectrum techniques on estimating cardiovascular function during HUP+LBNP.

目的 了解立位-下体负压期间心血管系统的变化，确定心律变异和脉图两种方法在评价心血管调节功能中的作用。

But, the large sample investigation by inquisition system for Chinese enterprisers discovered that the character of enterprisers influences badly on the credit of enterprises. Credit sponsion institutions in Zhejiang province widely put the character of enterprisers forward as a chief element in estimating credit level for medium-sized enterprises.

但尤努斯"穷人银行"、中国企业家调查系统的大样本调查和浙江商业信用担保实例却发现，"能力决定信用"的假设并不成立，企业负责人品格对企业信用有着至关重要的影响。

It includes compiling S-function for estimating the flux sector of squirrel-cage AC machine and selecting the switching vector.

该方法包括编写S函数来实现异步电机磁链扇区的判断和逆变器开关矢量的选择，以及利用Simpowersystems基本模块库来实现功率部分的仿真。

Description of the investment information to estimate the relevance of the contract, other professional conditions, and indicators of scale, with fixed or indicators of the corresponding standards for admission fees, the main equipment and materials prices, select the basis for the introduction of equipment and materials prices and the basis for estimating the use of foreign exchange rates, take into account unforeseen costs basis, taking into account the basis of reserve price, the project construction period interest and liquidity to determine the estimation methods.

说明本投资估算的相关合同信息、其他专业条件，采用的定额及指标，与定额或指标相应的取费标准，主要设备材料价格的选取依据，引进设备材料价格及依据，估算采用的外汇汇率，不可预见费计取依据，价差预备费计取依据，项目建设期利息的确定及流动资金的估算办法等。

Based on the theory of generalized estimating equations, this thesisstudies the parameter estimation in several statistical models for longitudinal data.

本文基于广义估计方程的理论研究了纵向数据下几类统计模型的参数估计问题。

The fourth chapter in this paper introduces the modeling ideas of stochasticvolatility into panel data model and puts forward panel data stochastic volatilitymodel. The Kalman Filtering can be employed to filter out the quasi-likelihoodfunction of the model and quasi-maximum likelihood estimation is used as achief means of estimating the parameter of the model.

第四章则将随机波动建模思想引入平行数据模型，提出平行数据随机波动模型，运用卡尔漫滤波方法得到模型的伪似然函数，进而采用极大似然估计方法求解模型参数。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。