估计理论

According to expert estimates, in theory, buy a new house this link, consumers can reduce at least 10%-20% of the purchase cost.

根据专家估计，从理论上讲，购买了新房子此链接，消费者可以减少至少10 ％-20 ％的采购成本。

This project derives a general express of experiential covariance function, which is the basis of achivement of interpolation, extrapolation and continuation of local gravity field variables and estimation theirs at different heights.

提出局部重力场元经验协方差函数的通用表达方法，为实现局部重力场元的内插、外推、延拓或其他不同高度的重力场元估计一体化奠定理论基础。

The theoretic formulas for cross correlation analysis were derived. 2. According to the frozen model, a transit model and expression formula of flow noise were got. Parameter estimation algorithm was applied in calculating of cross correlation function.

根据凝固模型，建立了流动噪声信号的传递模型，推导出凝固模型时的传递函数的表达式；对两种流动模型情况下，流动噪声的传递进行理论和仿真研究，仿真表明，尽管参数估计法可以消除传感器的涂污现象，但计算量大，速度慢，不能满足实时测量的要求。

The paper makes use of the theory of Grey system forecast to resolve the ammunition and rocket system development cost evaluation, establishing the GM model of Grey systems and cumulative residual error model, then correcting the GM forecast model.

该文应用灰色系统预测理论解决弹箭系统研制费用估计问题，建立了灰色系统GM预测模型和n次累加残差模型并对GM预测模型进行修正。

On the basis of theoretical analysis of target diffusion in range-velocity resolution cell, the array signal covariance matrix and noise covariance matrix are estimated from some different cells respectively. The processing results from experimental data in onshore HFSWR with Minimum Variance Distortionless Respose, MUltiple SIgnal Classification and pre-whiten MUSIC respectively show that super-resolution methods can provide better resolution than CBF.

鉴于 HFSWR 工作波长较长、常规波束形成角分辨力较差的缺点，基于目标在距离—多普勒平面分布的理论分析，本文利用相邻距离、多普勒频率单元信号估计阵列协方差阵，并分别利用 MVDR 、 MUSIC 、预白化 MUSIC 方法进行超分辩处理，实测的合作飞机目标数据处理结果表明超分辩方法能明显提高阵列角度分辨力。

The exponential distribution family and minimum error theory are brought to bear combined with fact.

针对小样本和小失效数给系统可靠性分析带来的难度，以及可靠性分布函数和参数估计的不确定性和模糊性，运用指数分布族、最小误差原理等相关理论，结合实际工程经验，对这类系统的可靠性分析提出了一种新的方法。

Simulation results verify the theoretical analysis of rapid DoA estimation algorithms and demonstrate the effectiveness of the algorithms.

仿真结果证明了对DoA估计的快速算法理论分析的正确性和算法的有效性。

Anyway, this is just theoretical estimation and it may not consider the Doppler effect that would affect the signal quality while running at the high speed.

不管怎么说，这仅仅是理论上的估计，它可能不会考虑多普勒效应会影响信号的质量，同时运行的高速。

The method will make a break in the theory of earth-space location; achieve space-space location .

与第一种方法相比，该方法有如下优点：(1)不需要在星载SAR的视场中使用任何位置确知的参考点，因此将真正突破现存的地-空定位理论，达到空-空定位水平；(2)其定位精度将仅仅取决于星历数据的准确性、地球模型的有效性、脉冲时延所决定的目标斜距精度、以及成像中多普勒信息的估计精度。

We propose a theoretical framework to predict the impact of inward FDI on the host country's incumbent firms' price-cost margins, according to the mode of entry of FDI We then investigate empirically the competitive discipline effect exerted by both imports and FDI on manufacturing plant-level price-cost margins in the UK, for the period 1991-2001. We estimate different specifications of the price-cost margin equation with both fixed-effects instrumental panel estimator and efficient generalized method of moments estimator with clustering correction.

通过构建理论模型预测FDI的不同进入模式对东道国企业价格－成本盈余(Price-Cost Mar-gin， PCM)的影响，以及采用固定效应工具面板和经过聚类修正的有效广义矩等不同估计模型，对1991-2001年间的进口和FDI对英国制造业企业PCM竞争规制效应进行的实证研究表明：绿地FDI对利润有负向影响，而并购FDI对利润的影响为正，即绿地FDI对PCM有规制效应，并购FDI会增加PCM。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。