波數(shù)字濾波器傳輸特性的計(jì)算機(jī)輔助分析
COMPUTER-AIDED ANALYSIS FOR TRANSFER CHARACTERISTIC OF WAVE DIGITAL FILTER
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摘要: 正 1.引言 波數(shù)字濾波器(以下簡(jiǎn)寫為WDF)因具有低靈敏度性質(zhì),可用較短的系數(shù)字長(zhǎng)加以實(shí)現(xiàn)而得到重視。一般的數(shù)字濾波器的設(shè)計(jì)往往是先尋求其傳輸特性表達(dá)式,然后考慮實(shí)現(xiàn)的結(jié)構(gòu)。WDF則不然,它直接引用模擬濾波器的結(jié)構(gòu),將模擬元件及其聯(lián)接方式變換到數(shù)字域即形成WDF的數(shù)字結(jié)構(gòu),而其在數(shù)字域上的傳輸特性則常是待求的。關(guān)于
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關(guān)鍵詞:
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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