波数字滤波器传输特性的计算机辅助分析
COMPUTER-AIDED ANALYSIS FOR TRANSFER CHARACTERISTIC OF WAVE DIGITAL FILTER
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摘要: 正 1.引言 波数字滤波器(以下简写为WDF)因具有低灵敏度性质,可用较短的系数字长加以实现而得到重视。一般的数字滤波器的设计往往是先寻求其传输特性表达式,然后考虑实现的结构。WDF则不然,它直接引用模拟滤波器的结构,将模拟元件及其联接方式变换到数字域即形成WDF的数字结构,而其在数字域上的传输特性则常是待求的。关于
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Abstract: An approach for finding the transfer characteristic of wave digital filter is presented and a general computer program is developed. The program can be used to analyse the quantification effect of different coefficient word-lengths to the transfer characteristic of wave digital filter, thus it is possible to make a reasoriable choice of coefficient Word-length jn order to take account of the economics as well as the technical specification in the hardware implementation of wave digital filter. -
A. Fettweis, Arch. Elck.bertragung., 25(1971), 79-89.[2]K. Renner, and S. C. Gupta, IEEE Trans. on CT,CT-20(1973), 555-67.[3]A. Antoniou, Digital Filter: Analysis and Design, MeGraw-Hill Book Co., New York, 1979, ch. 12.[4]A Fettweis, H. Levin and A. Sedlmeyer, Int. J. Circuit Theory and Applications,2(1974), 203-11.[5]K. Owcnier, IEEE Trans. on CAS, CAS-30(1983), 750-7.[6]A. Fettweis and K. Merkotter, IEEE Trans. on ASSP, ASSP-23(1975), 516-25. -
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