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Bilinear transformation of frequency distortion
: Sa. 1nstrum-1987 {20:1097-11024 Lu samples,[link widoczny dla zalogowanych], Du Runsheng ed. Acer Engineering Testing Machines signal analysis. Du Huazhong Polytechnic University Press. 19965 [U.S.] Oppenheim waiting. Liu Shutang translation. Signals and Systems. Xian Xian Xu Fang Shengyan modifications University Press 19856. Modern Control Engineering. Beijing: Science Publishing Mu, 19807 Hu Shousong editor. Automatic Control Theory (3rd edition). Beijing: National Defence Industry Press. 19948 Wu Hongxin. Barrier coefficient adaptive control method of the characteristics and engineering applications. Automation Expo,[link widoczny dla zalogowanych], 1999'16 (3) :8-109 [U.S.] JM Smith book. Wang elementary translation. Engineering and scientific researchers in mathematical models and digital simulation. Beijing: Atomic Energy Press. 1982FrequencyInfidelityofBi-LinearTransformLiuZhengshiWangXiaolongWangYongGeYunjianQCollegeofMechaaicalEngineeringHefeiUniversityofTechnologyHefei,[link widoczny dla zalogowanych], 230009) (HefeiInstituteofIntelligentInstrument.Academia $ inicaHefei,[link widoczny dla zalogowanych], 23003I) AbstractThefreqoencyinfidelityofBi · 1iaearTransformisinvestigatedinthispaper. AnewconceptofPointFrequencyEliminatioaEffectisproposedforsecond · order-system,[link widoczny dla zalogowanych], andtheequationforquantitativelyanalyzingthefrequencyinfidelityinfisrt · order · systemisalsogivenhyinvestigatingthefrequencyat-3dBhandpass. SomeexamplesaregiventOverlfythecorrectaessoftheseequations. TheresultsobtainedinthepapershowthatthefrequencyinfidelityinBi-LinearTransformisrelatedtOsamplingfrequencyandthecharacteristicsofthesystem. Thehigherthesamplingfrequencyis. thelesstheerrortherewillbeinacertainsystem. Thusitisproposedthatthesamplingfrequencyshouldhe15timeshigherthanthenaturefreuencyofsecond-order-systemtattdtheproductoffrequencyandtimeconstantoffirst-order-systemshouldbemorethan2inorderthatthefrequencyinfidelityislessiapracticaluse. Keywords: Bi · lineartransform; differentialequation; frequencyinfidelity; pointfrequencyeliminationeffect | handpassfrequeacy SCIENTIFIC INSTRUMENT male first author, professor. June 1947 Health Tel: (0551) 2901335 | E. mail: zhthut @ mail. hf. ah. cn
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