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고주홍,이용학 濟州大學校 工科大學 産業技術硏究所 1994 産業技術硏究報告 Vol.5 No.-
For one input signal the wave digital filter(WDF) has a merit producing two output signals which are complemented each other. The WDF are described in terms of analog LC filters and WDF are classified into Lattice WDF(LWDF) and Ladder WDF(WDLF) depending on their references. In this paper, firstly theory of the LWDF is summarized and the design procedures are outlined. By introducing examples LWDF is compared with the conventional IIR filters and WDLF. Also the coefficients quantization error are discussed quantitatively. It is verified that the characteristics both transition and stopband attenuation of LWDF are more improved than that of two types.
고주홍,이용학 濟州大學校工科大學附屬産業技術硏究所 1994 尖端技術硏究所論文集 Vol.5 No.-
For one input signal the wave digital filter(WDF) has a merit producing two output signals which are complemented each other. The WDF are described in terms of analog LC filters and WDF are classified into lattice WDF(LWDF) and Ladder WDF(LWDF) depending on their references. In this paper, firstly theory of the LWDF is summarized and the design procedures are outlined. By introducing examples LWDF is compared with the conventional IIR filters and WDLF. Also the coefficients quantization error are discussed quantitatively. It is verified that the characteristics both transition and stopband attenuation of LWDF are more improved than that of two types.