释义 |
1 ?贝塞尔 ...巴特沃兹(Butterworth),是通带内频响最平直的滤波器,契比雪夫(chebyshev)是带外衰减速度最快的全极点滤波器,贝塞尔(Bessel)是线性相位滤波器,阶跃响应最佳. 2 ?贝赛尔 滤波器从零、极点分布的角度看分为巴特沃斯 (Bunerworth)、切比雪夫(Chebyshev)、贝赛尔(Bessel)、椭圆(Elliptic)等, 其中巴特沃斯(Butterworth)是最平坦滤波器,它的通带和阻带都是平滑的,没 有纹波系数;而切比雪夫(C... 3 ?贝塞耳 ...Bessel:Prussian astronomer who recalculated the orbit of Halley's comet (1804), verified by parallax the distance from the earth to the twin star 61 Cygni (1838), and developed a class of mathematical functions based on his study of planetary perturbation."贝塞耳:普鲁士天文学家,重新测量了哈雷彗星轨道(1804年),通过视差核实地球到双子星座61──天鹅星座的距离(1838年),在其行星摄动研究... 4 ?塞尔滤波器 ...特沃斯滤波器(Butterworth): 最大平坦度滤波器,在通带内有平坦的幅度和一致的群延时,带阻频率滚降率一般。 贝塞尔滤波器(Bessel)..
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The main method of evaluation is Bessel formula. - 2
Making convenience of computation, the calculation method of the spherical Bessel functions for complex arguments is presented. 为便于计算,给出了复宗量的球贝塞尔函数的计算方法。 - 3
MathCAD combines a large library of functional capability including calculus, Laplace transforms, Bessel functions, statistics, and financial functions. 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。
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