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  • EDGE+for+Mobile+Internet

    The General Packet Radio Service (GPRS) allows an end user to send and receive data in packet transfer mode within a public land mobile network (PLMN) without using a permanent connection between the mobile station (MS) and the external network during data transfer. This way, GPRS opti- mizes the use of network and radio resources (RRs) since, unlike circuit- switched mode, no connection between the MS and the external network is established when there is no data flow in progress. Thus, this RR optimiza- tion makes it possible for the operator to offer more attractive fees.

    標簽: Mobile EDGE

    上傳時間: 2020-05-27

    上傳用戶:shancjb

  • Mobile+Communications+Engineering

    By definition, the term “mobile-radio communications” describes any radio communication link between two terminals of which one or both are in motion or halted at unspecified locations and of which one may actually be a fixed terminal such as a base station. This definition applies to both mobile-to-mobile and mobile-to-fixed radio communica- tion links. The mobile-to-mobile link could in fact consist of a mobile- to-fixed-to-mobile radio communication link.The term “mobile” applies to land vehicles, ships at sea, aircraft, and communications satellites. In tactical situations, mobile-radio systems may include any or all of these types of mobile terminals.

    標簽: Communications Engineering Mobile

    上傳時間: 2020-05-30

    上傳用戶:shancjb

  • Coriolis Vibratory Gyroscopes

    Thanks to the advances in micromachining fabrication technologies and significant cost reduction due to mass production, miniature sensors of angular rate, or gyroscopes, found their way into the everyday life of every user of modern gadgets, such as smart phones, tablets or even wristwatches. Often without realising, many of us are carrying in our pockets fully equipped with all necessary sensors complete inertial navigation systems that not so long ago were available only for advanced vehicles in sea, land, air or space. Accelerometers and gyroscopes are found in specifications of any gadget supposed to react to user movements. And one of the most commonly used type of gyroscopes used to developed these systems is Coriolis vibratory gyroscope (CVG).

    標簽: Gyroscopes Vibratory Coriolis

    上傳時間: 2020-06-06

    上傳用戶:shancjb

  • 江蘇分市12米ALOS DEM數據下載

    12.5mDEM數據,是ALOS(Advanced land Observing Satellite,2006年發射)衛星相控陣型L波段合成孔徑雷達(PALSAR)采集。該傳感器具有高分辨率、掃描式合成孔徑雷達、極化三種觀測模式。該數據水平及垂直精度可達12.5米。該文件為江蘇省分市12.5m DEM數據

    標簽: alos ALOS

    上傳時間: 2022-05-13

    上傳用戶:

  • HW108A 技術手冊

    ?High-sensitivity InSb Hall element.?Super mini-mold SMT package (fits SOT343 land pattern).?Shipped in packet-tape reel (4000pcs per reel).

    標簽: hw108a

    上傳時間: 2022-07-26

    上傳用戶:

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