multiple-purpose communication 中文意思是什麼

multiple-purpose communication 解釋
多用途通信系統
  • multiple : adj 1 多重的；復合的 復式的 多數的 多樣的。2 倍數的 倍。3 【電學】並聯的；多路的 復接的。4 【植物...
  • purpose : n 1 目的，宗旨，意向。2 決意，意志，決心。3 用途，效果；意義。4 （討論中的）論題。vt 想，企圖，打...
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  1. The product has the following characters : all - purpose input, completed separated signal channels, collection of the signal data by scanning, the display technique of lcd big screen, flash memory ; capacious compatible floppy disk, 36 types of signals, multiple alarms, communication of rs232 / 485 and hart confered - link with a view to second generation technique of the field - bus. during the developing course, i used the method of reliability design to design hardware, and researched carefully the process of weak signal. pass to practice, the product has achieved all aim of the design

    系統在功能上實現了萬能輸入，信號通道之間的完全隔離，信號的掃描採集，大屏幕lcd顯示技術， flash存儲器進行數據存儲，大容量的具有兼容性的電子軟盤， 36種信號方式，多種報警方式， rs232 / 485通訊，以及著眼于下一代的現場總線技術的hart協議介面等。
  2. For the purpose, yuan government took a series of effective measures to develop agriculture and pasture, industry and commerce, communications etc. in the northwest area and obtained new achievements : forming a new national pattern and multiple economy in the northeast area ; discovering the true source and dredging partial transport of yellow river, which was an important place in the history of yellow river ' s development ; improving unprecedentedly the conditions of local communications by establishing posts and strengthening to run them in the northwest area, which had a great effect on the communication of ming - qing dynasty down to today ; ningxia being named officially in yuan dynasty and ningxia plain becoming beautiful " lush southern - type fields north of the great wall " on the base of the development of yuan dynasty

    為此，採取一系列有效措施，對西北地區的農牧業、工商業、交通等進行比較全面的開發，取得了一些新成果。如西北地區民族新格局及多元經濟的形成；對黃河的開發，發現了真正河源，開通局部黃河漕運，在黃河開發史上佔有重要地位；通過在西北地區設立驛站和加強對所立驛站的管理，使當地交通狀況得到前所未有的改觀，對明清以降直至今天的交通都產生了很大影響；寧夏于元代正式定名，寧夏平原變成美麗的「塞上江南」 ，在元代奠定了基礎。
  3. Software radio was proposed by joe motila on may 1992 with the purpose of solving the following problems in wireless communication : the co - existing multiple systems, the competition between several communication standards, the lack of bandwidth and the rapid growth of personal communication

    軟體無線電（ softwareradio ）是由美國專家joemotila於1992年5月提出，目的是解決無線通訊領域中存在的許多問題：多通信體系並存；各種通信標準的競爭；頻率資源的緊張以及個人移動通信的快速發展。
  4. Because of the affection of noise and signal fading, in order to high data rate access and high quality, wireless communication need new technology to improve the link reliability and enhance the spectrum efficiency. mimo ( multiple input and multiple output ) can enhance the spectrum efficiency and increase channel capacity greatly, and reduce the multipath affection without spectrum band and power increasing. the 3th generation mobile communication wcdma is coming, with the purpose of putting mimo, stbc ( space time block coding ), space diversity into practice of wcdma systems, in order to lay the foundation of 3g toward 4g, this dissertation has done some research under this background

    在發射機和接收機使用多個天線進行數據傳輸的多輸入多輸出（ mimo ）技術，可以在不增加帶寬和天線發送功率的條件下，成倍的提高頻譜利用率，提高系統的通道容量，還可以抗多徑干擾。第三代移動通信wcdma即將到來，為了將多天線技術（ mimo ） ，空間分集技術，空時編碼技術用到wcdma系統中去，為第三代移動通信向第四代移動通信系統平穩過渡奠定一定的基礎，需要做一些理論上的研究。
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