多项式

In order to calculate the satellite orbit in GPS data process,it is more efficient to use polynomial methods to fit the orbit curve with the parameters of GPS broadcast ephemeris.

利用多项式拟合的方法计算GPS卫星在轨坐标时，使用正交多项式可有效避免计算过程中出现的病态矩阵。

As long as the system of first order polynomial DDEs in (1+1)-dimensions is given, no matter whether a single equation or the coupled equation, CLawDDEs can automatically output the scaling symmetries of the variables and a series of possible polynomial conservation laws for different rank.

只要输入多项式形式的等秩DDE，无论是单个方程还是耦合方程组，CLawDDEs都能自动确定变量的标度变换特性和不同秩的多项式守恒律。

Based on polynomial curve-fitting theory, a Laguerre orthogonal basis feed-forward neural network is constructed.

根据多项式理论，构造了一种以Laguerre正交多项式作为隐层神经元激励函数的前向神经网络模型。

To compensate for nonlinear distortion of RF power amplifiers, a novel adaptive digital predistortion method based on piecewise polynomial was proposed, and multiple lower-odd-order-only polynomials in the form of orthogonal coordinates were used for predistorter design.

为补偿RF功率放大器的非线性失真，提出一种新的基于分段多项式的自适应数字预失真方法，使用多个直角坐标形式的低阶奇次多项式设计预失真器。

The spatial distribution of intra-node flux and source were approximated by a new orthogonal quadratic polynomial expansion, and a second-order polynomial provided the spatial expansion of transverse-leakage. The neutron angular distribution of flux and transverse-leakage were represented by the S quadrature set.

节块内横向积分通量、中子源的空间分布使用新的正交二次多项式近似；横向泄漏项的空间分布使用二阶多项式近似；中子通量和横向泄漏的角度通过离散纵坐标S

This algorithm is to use orthogonal polynomials to seek least-squares polynomial fitting.

详细说明：该算法是用正交多项式来求最小二乘拟合多项式。

The main purpose of this work is to develop the spectral methods associated with some orthogonal systems of polynomials in unbounded domains.

本文正是在这样的背景下提出了无界区域中的谱方法。这种解法是与无界区域中的正交多项式密切相关的。我们的研究由以下几部分组成：第二章，建立了Hermite多项式插值逼近。

In comparison with Zernike polynomials, the orthogonal polynomials have similar PSD distribution, but higher spatial frequencies.

通过对比发现，正交多项式与相同阶的Zernike多项式PSD分布相似，但是却含有更高的空间频率成分。

In order to probe into classification and recognition method for planar figures in effect, a class of complete orthogonal piecewise k -degree polynomials, so-called U-system, is introduced.

为了探索有效的图形分类与识别的新方法，引进一类正交完备的分段 k 次多项式系统。U-系统是一类属于 L 2[0，1]的正交完备分段k次多项式系统。

In this thesis we propose an orthogonal polynomials adaptive filter and perform theoretical convergence analysis of residual echo power which proves its faster convergence rate owing to the reduced eigen spread of the input signal.

在传统上，多项式采用次方级数展开的形式；而在本篇论文中，为了提升非线性适应性滤波器的收敛速度我们使用正交多项式的非线性适应性滤波器。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。