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用lifting方法设计最优LPPR-FIR滤波器组
CONSTRUCTION OF M-BAND LPPR-FIR FILTER BANKS BYLIFTING SCHEME
【摘要】 该文研究了如何用lifting方法构造线性相位完全重建有限脉冲响应(LPPR-FIR)滤波器组的优化设计问题,即如何转化为一个二次型优化问题.然后把该方法推广到M带FIR滤波器组,考虑在一种特殊情形中如何构造具有线性相位性质的M带PR-FIR滤波器组,最后列举了几个例子说明如何用lifting方法构造M带LPPR-FIR滤波器组。
【Abstract】 This paper studies the design and optimization of LPPR-FIR filter banks by liftingscheme. It can be commutated into a quadratic optimization problem. Then, lifting scheme is generalized to the case of M-band perfect-reconstruction (PR) FIR filter banks. Last, some examples will be given to demonstrate how to construct LPPR-FIR filter banks.
【关键词】 Lifting方法;
M带滤波器组;
完全重构;
线性相位;
【Key words】 Lifting scheme; M-band filter banks; Perfect reconstruction; Linear phase;
【Key words】 Lifting scheme; M-band filter banks; Perfect reconstruction; Linear phase;
- 【文献出处】 电子与信息学报 ,Journal of Electronics and Information Technology , 编辑部邮箱 ,2002年09期
- 【分类号】TN713
- 【下载频次】47