本文把基于DFT、WHT、IDCT和DCT域的全相位滤波器(APDF)设计公式纳入到一个统一的框架中,在原有基于正交变换域APDF的设计公式的基础上得出了逆过渡矩阵G~(-1)的表达式。
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在全相位滤波器设计理论的基础上,本文证明了基于IDCT/DCT域的APDF有零相位特性和子带互补特性。
Secondly, to find the suited application, the characteristics of APDF based on IDCT/DCT are discussed. Zero-phase and sub-band filtering with complementary are two characters of APDF.
在引入重叠基矩阵的基础上,提出了加窗全相位等效f IR滤波器系数向量的计算通式。
Based on introducing overlapping base matrix, the general calculating formula for the coefficient vector of windowed all-phase equivalent FIR filter is proposed.
全相位数字滤波器(APDF)是一种新型的线性相位滤波器。
The All phase Digital filter (APDF) is a new type of linear phase filter.
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