给出了滤波多音调制系统的原型滤波器优化设计方法。
An optimal design method for the prototype filter design of the filtered multitone modulation system is proposed.
利用这些公式，我们可以以二次型形式直接优化原型滤波器系数。
Using these formulae, we can, directly, optimize the prototype filter coefficients in a quadratic form.
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.
提出了一种新的近似完全重构(npr)离散傅立叶变换(DFT)调制滤波器组的原型滤波器设计方法。
A novel design method for the prototype filters of a Near Perfect Reconstruction (NPR) Discrete Fourier Transform (DFT) modulated filter bank is proposed.
本文提出了一种从模拟低通原型滤波器的振幅平方函数设计“无限脉冲响应(IIR)”数字滤波器的方法。
A technique used to design infinite impulse response (IIR) digital filters from the squared magnitude function of a normal analog lowpass filter is presented in this paper.
求出多相滤波器频率响应后，用多个基于相同原型滤波器的数字滤波器将其划分为多个信道输出以达到降低信道输出速率的目的。
After polyphase filter frequency response was done, the channel out rate was fallen, and it was divided into multi-channel by the several digital filters based on the same archetype filter.
本课题主要是利用频罩法实现高效的原型滤波器设计和调制滤波器组的设计与实现，并利用MATLAB软件对所研究的内容进行了仿真。
This thesis mainly designs the efficient prototype filter and modulation filter set using the method of Frequency-Response Masking (FRM) and simulates them using MATLAB software.
试验结果表明，增加了线性相位这一重要性质的同时，分析和综合原型滤波器在阻带衰减、通带平坦性以及系统混叠等性能方面仅有很小的损失。
And the examples verified that the analysis and synthesis prototype filters with the linear phase constrains show a little loss in perfanmence compare with those without this property.
现研究了一种具有线性相位的最大抽取FIR余弦调制滤波器组，该滤波器组中每一个滤波器都具有线性相位，且由原型滤波器经余弦序列调制得到。
In this paper we study linear phase maximally decimated FIR cosine modulated filter banks, in which each filter has linear phase and is obtained by modulating the prototype filter by cosine sequences.
现研究了一种具有线性相位的最大抽取FIR余弦调制滤波器组，该滤波器组中每一个滤波器都具有线性相位，且由原型滤波器经余弦序列调制得到。
In this paper we study linear phase maximally decimated FIR cosine modulated filter banks, in which each filter has linear phase and is obtained by modulating the prototype filter by cosine sequences.
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