贝塞尔函数

仿真计算出了贝塞尔函数展开的最佳C值。

The best bessel function expanded value of C is get through simulation .

关于变态贝塞尔函数In（X）和Kn（X）的计算及FORTRAN程序

Numerical Computation and FORTRAN Program on the Modified Bessel Functions I and K

文中给出了下降值与R的近似关系；这比用贝塞尔函数计算要简单得多。

This dissertation gives the approximate relation between the power reduction and R. This relation is much simpler than the commonly used Bessel functions .

利用对称规则采样法得出一个PWM波形的付里叶级数表达式，再根据贝塞尔函数导出普遍认同的PWM波形频谱。

In this paper , one PWM wave about fourier 's progression expression is obtained by using symmetrical rule sample , and PWM wave frequency spectrum is directed according to Bessell 's function .

即先用一系列的类贝塞尔函数对TCC矩阵进行采样，重新得到的矩阵，定义为BTCC，在尺寸上已经是比较小。

That is , first we use the Bessel-like kernel to sample the original TCC matrix , then we get a smaller size matrix BTCC .

然后针对逆变器-电动机系统，利用贝塞尔函数和傅里叶级数理论，分别对单相二阶SPWM逆变器和三相SPWM逆变器的输出电压谐波的产生、大小和分布进行了细致而具体的分析和计算。

According to Bessel function and Fourier series theory , generation , magnitude and distribution of voltage harmonic generated by single-phase two-level SPWM inverter and three-phase SPWM inverter are analyzed and calculated particularity and concretely in allusion to inverter-motor system .

应用第一类零阶修正的贝塞尔函数I0（x）一个近似式，推导Rice随机变量的概率分布函数（CDF）的近似闭式。

Utilizing an approximate formula of the first kind zero-order modified Bessel function I 0 ( x ), an approximate closed form of cumulative distribution function ( CDF ) of a Rice random variable ( RRV ) is worked out .

MathCAD组合了一个庞大的功能库，包括微积分、拉普拉斯变换、贝塞尔函数、统计和财务函数。

MathCAD combines a large library of functional capability including calculus , Laplace transforms , Bessel functions , statistics , and financial functions .

含贝塞尔函数的数值积分是用FiLon方法完成的，它具有精度高，运算速度快的特点。

The integral containing Bessel function was computed by use of the Filon method which has advantages as high accuracy and high speed .

这种设计是以S域一维（1-D）贝塞尔函数为原型的低通滤波器的传递函数，通过一维S域至二维Z域的双线性变换，实现线性相位二维递归数字滤波器。

The design is based on the transfer function which adopts the Besel function of S domain as its original lowpass filter . By bilinear transformation of 1-D S domain to 2-D Z domain to the function , a linear phase 2-D recursive digital filter can be realized .

Durnin于1987年首次提出，它是自由空间标量波动方程的一组特殊解，其场分布具有第一类零阶贝塞尔函数J0的形式。

Durnin in 1987 , it is a specific solution of the free-space wave equation , and its field distribution has a Bessel-like form .

径向平方贝塞尔函数调制高斯光束的焦移

The Focal Shift for Bessel-Modulated Gaussian Beam with Quadratic Radial Dependence

零阶贝塞尔函数组成的两个正交系

Two orthogonal system composed of Bessel 's functions with degree 0

任意阶复宗量贝塞尔函数的数值计算正面解读《名利场》中的复杂人物贝姬

Numerical Calculation of Bessel Functions with Complex Argument for Arbitrary Orders

一阶贝塞尔函数广义积分的数值计算

The Numerical Computation of 1 th Bessel Function Generalized Integration

利用贝塞尔函数的级数形式进行数值计算的误差分析

An error analysis of numerical calculation by series formula of Bessel function

整数阶复宗量变形贝塞尔函数的计算

Numerical computation of modified Bessel functions for integer orders and complex arguments

贝塞尔函数的近似计算在调频制中的应用

Application of the approximate evaluation of Bessel functions to frequency modulation system

弹性波在离散介质中传播的贝塞尔函数解Ⅰ

The Bessel functions solution of elastic waves propagation in a discrete medium

用贝塞尔函数求解弹性基础上的中厚板

A Solution for the Medium-thick Plates on the Elastic Foundation by Bessel Functions

故本算法对双重贝塞尔函数积分的计算效率有明显提高。

This algorithm has improved efficiency of calculation obviously for dual Bessel integration .

基于贝塞尔函数的某型号卫星调频信号调制指数测量方法

Modulation Measurement by Spectrum Analyzer for the Satellite Based on the Bessel Function

计算含有贝塞尔函数的积分项时，利用一种结合连分式展开的高斯求积代替常规的快速汉克尔变换方法。

Using the Gaussian quadrature and continued fraction calculates the integral with Bessel function .

多层厚壁圆筒频率方程的简化及一类贝塞尔函数递推公式

Simplification of Frequency Equation of Multilayered Cylinders and Some Recursion Formulae of Bessel Functions

物理勘探中，需要计算含一阶贝塞尔函数的广义积分。

In physical prospecting , we need to calculate the integrals of1th Bessel function .

文克勒地基上圆形薄板受轴对称载荷作用的贝塞尔函数解

Bessel Function Solution of Circular Thin Slab Under Axially Symmetrical Load on Winkler Foundation

第一、二类复宗量贝塞尔函数的数值计算方法

Numerical Computation of Bessel Function for Complex Arguments

由一阶贝塞尔函数组成的两个正交系的证明

The proofs of the two orthogonal function systems formed by first order Bessel functions

从振动波形研究贝塞尔函数和勒让德函数的渐近关系

Study of asymptotic relationship between Bessel function and Legendre function by analyzing vibration modes

贝塞尔函数理论在现代不稳定试井中的应用

The applications of bessel 's functions in the modern well-test to unsteady liquid flow problems