Based on Legendre multinomial, a new kind of low-pass filter prototype is designed out after analyzing the design rule and inefficiency of some classical filter prototypes.
分析了几种经典的滤波器原型设计原理及其自身不足，基于勒让德多项式，给出了一种新的低通滤波器设计原型。
First, the filter parameter is calculated with low pass prototype, then the parameter of the filter is optimized and simulated with microwave CAD software.
首先根据滤波器的低通原型设计、计算了滤波器的参数，并使用微波cad软件对设计的尺寸进行了优化、仿真。
Multirate filter bands can be realized by cosine modulation of a linear-phase low-pass prototype filter.
多采样率滤波器组可以通过对线性相位低通原型滤波器进行余弦调制来实现。
Multirate filter bands can be realized by cosine modulation of a linear-phase low-pass prototype filter.
多采样率滤波器组可以通过对线性相位低通原型滤波器进行余弦调制来实现。
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