查询词典 quadratic

Three formulations, which are two-, four-, six-order of accuracy, are obtained by using linear, quadratic and cubic Lagrangian interpolation functions.

给出了使用线性、二次和三次插值函数构造的积分格式，它们的精度依次为二阶、四阶和六阶。

This paper researchs into the problem on fitting the shell flight-time of anti-aircraft gun by interpolation and quadratic approximation.

用插值拟合和最小二乘逼近拟合方法对高炮射弹飞行时间拟合问题进行了研究。

The procedures used visual c development, design optimization for mechanical engineering, for the classical parabolic law, also known as the quadratic interpolation, good operating results.

本程序采用visual c++开发，用于机械优化设计工程计算，为经典的抛物法，又称二次插值，运行结果良好。

In view of it, the algorithm based on the Fast Fourier Transform techniques with quadratic interpolation in the frequency domain is mainly presented. After that,the simulation is carried on and analyse the simulation curves deeply. It ndicates that this algorithm can not only enhance the frequency resolution, but only estimated frequency has high reliability and excellent stability. And it\'s feasible.

主要介绍一种基于FFT和在频域内二次插值的频偏估计算法，之后进行仿真、深入分析仿真曲线，结果表明该算法不仅可以提高频偏估计的精度，而且频偏估计值具有很高的可靠性和良好的稳定性，该算法是可行的。

Thereinto, quadratic interpolation is uesed in undimensional search, and Powell arithmetic is used to solve unconstrained minimziation.

其中，利用二次插值法进行一维搜索，选用Powell算法进行无约束极小化求解。

Comparing with that using quadratic interpolation gridding first and then the first generation wavelet analysis in the irregular measuring network data, this method not only has higher precision, but also little distortion.

本文实现了基于提升算法的第二代小波变换，并把它应用于不规则测点的重力数据的处理，该方法比预先将不规则测点的重力数据经过二次插值网格化，再进行第一代小波分析的方法不仅精度高，而且失真小。

Simulation results prove that the performance of the new method is similar with the linear interpolation method at the lower velocity; while it is better than the linear interpolation method at the higher velocity and a little worse than the quadratic polynomial interpolation.

通过仿真表明，在低车速时，该算法的误比特率性与线性插值方法基本相同；而在中高车速时，该算法的误比特率性能要明显优于线性插值信道估计方法，与二次插值信道估计方法的性能基本相同。

The calculating model of the electric field intensity of a composite insulator was presented; and the computing result of the distribution of the electric field was obtained by using the quadratic interpolation finite element method.

1引言合成绝缘子因其具有重量轻、耐污性好、日常维护量小等优点，在高电压输电线路上得到了广泛的应用。但是合成绝缘子在结构和材料上与瓷绝缘子不同，沿面场强的分布也不均匀。

The first deceleration phase of motion and the over-corner P-H curve constructed for regions with sharp corners are devised by quadratic and constant velocity interpolation algorithms, respectively.

第一阶段的减速运动和过度角落PH值曲线构建区域急剧角落设计的二次和恒定速度插补算法分别。

It has been shown that the calculation resultS Of the two methods,the simplified integral and quadratic interpolation methods used in 1 D modelling of CSAMT(Controlled Source Audio frequency Magnetotellurics )method differs from each other significantly.

研究发现，两种目前比较常用的可控源音频磁大地电流法的正演计算方法，即简化积分法和二次插值法之间计算结果差异较大。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。