cellular communication systems 中文意思是什麼

cellular communication systems 解釋
蜂窩通信系統
  • cellular : adj. 1. 【生物學】細胞的，細胞質[狀]的。2. 【建築】區劃[分格]式的；小室的。3. 多孔的；有窩的。4. ＝cellular phone.
  • 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。
  • systems : 國體
  1. Power control and multiuser detection are two key technique to cope with the multiple access interference and near - far effect in cdma mobile cellular communication systems, power control is a resource allocation technique that balances the received powers of the users so that no one user creates excessive interference

    功率控制和多用戶檢測是cdma移動通信系統中克服遠近效應、多址干擾的關鍵技術。功率控製作為一種可以平衡接收功率，減小對其他用戶干擾的技術得到廣泛的應用。
  2. The spot - beam design in the satellite - based cellular communication systems is discussed mainly

    摘要討論了衛星蜂窩通信系統的點波束設計。
  3. Code division multiple access ( cdma ) has rapidly become a leading technology for commercial cellular systems because it has large capacity, good voice quality and big potential of upgrading etc. in 1996, china began the commercial trial of cdma cellular communication network in four cities, beijing, shanghai, guangzhou and xi ' an

    基於cdma （碼分多址）技術的數字蜂窩系統由於具有容量大、音質好、升級潛力大等優點，贏得了廣大消費者及運營商的青睞，在世界各地也得到了越來越廣泛的應用。 1996年，我國首先在北京、上海、廣州和西安四城市進行了cdma網的商用試驗。
  4. With the theory getting more matured and completed, sdr technology has been widely used in cellular communication system as well as other civil and military wireless communication systems. as one of the core technologies of sdr, digital receiver is also getting more and more extensive application

    隨著近年來軟體無線電理論和應用趨于成熟與完善，軟體無線電技術已經被越來越廣泛地應用於雷達通信及各種軍用和民用的無線通信系統中。作為軟體無線電的核心技術之一，數字接收機技術也得到了越來越普遍的應用。
  5. The development of cellular communication, multiple addressing and frequency multiplexing techniques, etc. provides a guarantee for leo satellite mobile communication. in order to improve the flexibility of communication systems, we hope that the a / d, d / a converter should be near rf - end, that is, programmable devices can implement the whole processing in middle frequency

    為了使得通信系統具有較大的靈活性和可擴展性，我們希望a d 、 d a變換器盡量向射頻端靠攏，即完成射頻到中頻的下變頻后，整個中頻的處理都用可編程數字器件以及軟體來實現。
  6. With the rapid development of mobile communication systems, the existing gsm and narrowband cdma cellular system cannot solve the contradiction between the limited frequency source and the increased mobile users

    隨著移動通信的飛速發展，現有的gsm系統和窄帶cdma系統已無法緩解頻率資源有限與移動用戶急速增加的尖銳矛盾。
  7. The analysis of the cellular mobile communication systems with the monte carlo method

    蜂窩移動通信系統的蒙特卡洛法分析
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