時(shí)延網(wǎng)絡(luò)的奧布列什科夫逼近
OBRESCHKOFF APPROXIMATION FOR RETARDATION NETWORK
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摘要: 本文用奧布列什科夫公式來逼近時(shí)延網(wǎng)絡(luò),給出了解析式以及與貝塞爾逼近間的關(guān)系,并對其逼近性質(zhì)和頻域、時(shí)域特性作了分析,表明時(shí)延網(wǎng)絡(luò)用奧布列什科夫逼近比用貝塞爾逼近具有更好的逼近效果。最后用實(shí)例說明。
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關(guān)鍵詞:
Abstract: The Obreschkoff approximation for a retardation network is carried out. Some analytic formulas of the Obreschkoff approximation and the relationship between these formulas and those of the Bessel approximation are also given. The characteristic, the frequency response and the time response of the Obreschkoff approximation are ana-lyzed. The results obtained show that the Obreschkoff approximation is more accurate than the Bessel approximation for a retardation network. In the end, a typical example is given to varify the above conclusion. -
А.Н.Хованский著,葉乃膺譯,連分式及其推廣在近似分析問題上的應(yīng)用,科學(xué)出版社,1962.[2]A. H. Marshak, D. E. Johnson and J. R. Johnson, IEEE Trans. on CAS, CAS-21(1974), 797.[3]D. E. Johnson, J. R. Johnson and A. Eskandar, ibid, CAS-22 (1975), 645.[4]D. E. Johnson著,顏紹書等譯,濾波器理論導(dǎo)論,人民郵電出版社,1981.[5]周承聯(lián),綜合法濾波器的理論與計(jì)算,人民郵電出版社,1979. -
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