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窄帶帶通濾波器有什么定義?

發表時間:2021-02-20 16:13【 閱讀量:-查看手機網址
掃一掃!窄帶帶通濾波器有什么定義?掃一掃!

  狹窄帶通濾波器是按濾波器的頻率特性的幅頻特性來定義的。如果在數字濾波器所要提取信號專頻率處屬設置一個極點濾波器,此極點選擇為d=re^j2πkfT當r值接近1時,就可以得到很窄的通帶和比較陡峭的過度帶,故稱為狹窄帶通濾波器。


  1,如果是采抄用MFB設計的則和選擇的運放器件有關如果采用的是Sallen-Key設計的則和運放無多關系2,理論上如果使用FilterPro設計出來,應該和Multisim的一樣,FilterPro使用的是TI自己公司的運放。3,二階設計帶通的帶寬是多少,如果需比較小,截止頻率陡峭,則需要考慮多級4,可以參閱我空間里面有許多濾波器的設計不過大多數都是采用筆算的


重生九零小辣椒
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