wideband modem 中文意思是什麼
-
The research in software radio is not more than ten years, but has made a great many fruits, but it is too little to set up an integrated theory system, and software radio includes many areas such as modern communication system ( which includes modem source / channel encoding and decoding, equalization, encrypt and decrypt and so on ), wideband antenna theory, digital signal process, microelectronics, computer and so on. this thesis mainly does research for modem in modem communication
軟體無線電經過不到10年的研究，盡管取得了很多成果，但是對于建立一套完整的理論體系來說，還遠遠不夠，況且軟體無線電涉及的領域多、面廣、發展快，如現代通信理論（含調制解調、信源通道編解碼、均衡、加密解密等） 、寬帶天線理論、數字信號處理、微電子、計算機等。 -
But between the lan and backbone is provided by much lower bandwidth technologies available through the existing copper wire, adsl, cable modem, and the " last mile " ( between the lan and fiber backbone ) problem has become a bottle - neck in the wideband transmission
但是光纖干線和局域網間接入系統卻是傳統的銅纜、 adsl 、同軸電纜等，傳輸速率都在10mbps以下。所以光纖和局域網間「最後一公里」的接入成為解決寬帶傳輸的瓶頸問題。
分享友人