physical layer 中文意思是什麼

physical layer 解釋
實體層
  • physical : adj 1 物質的，有形的，形而下的 （opp psychical spiritual mental moral）; 確鑿的；外界的。2 身體的...
  • layer : n 1 放置者，鋪設者，計劃者。2 【賽馬】（一般）賭客。3 產卵的雞。4 【軍事】瞄準手。5 層；階層；地...
  1. Cebus symbol encoding sublayer physical layer conformance

    Cebus符號編碼子層物理層一致性
  2. Cebus twisted pair physical layer conformance

    Cebus雙絞線物理層一致性
  3. Cebus infrared physical layer conformance

    Cebus紅外線物理層一致性
  4. Cebus pl and rf symbol encoding sublayer physical layer conformance

    Cebuspl和rf符號編碼子層物理層一致性
  5. Inbreak detection, leak scan ) used in it and corresponding design for each layer, including physical layer, network layer, system layer and application layer, applied. fourthly, with the elaborate deploy of secure product ' on and fully working, chongqing public ip network will be a advanced secure operational, manageable domestic network

    第四，全面的安全產品部署和工程實施，全力打造重慶電信公眾ip網，使之成為全國領先的安全、可靠、可運營、可管理的網路。
  6. The lcp sits on top of the physical layer and is used to establish, configure, and test the data - link connection

    連結控制協定在實體層的上面，被用於建立、組態與測試資料連結的連線。
  7. Sonet. telecommunications - synchronous optical network : physical layer specifications

    電信.同步光纖網
  8. Firstly, hart protocol is illustrated, its fsk physical layer specifies the transmittal manner of signal and voltage of signal. data link layer specifies the device type and data transport protocols

    Hart協議採用iso osi簡化模型， iso osi分為七個功能層， hart協議只用了第一、二、七層，即物理層，數據鏈路層和應用層。
  9. Hsupa ( high speed uplink packet access ) is the new technique of r6, first in this thesis, the hsupa physical layer is introduced in detail. then base on the physical layer technique characteristic, according to the 3gpp simulation requirements and system simulation requirements, the hsupa downlink and uplink can be constructed by using matlab. then the data channel and control channel can be simulated, so the channels performance can be realized, provide the results can be provided to the system simulation, these ground the future practical applications

    Hsupa （ highspeeduplinkpacketaccess ） ? ?高速上行分組接入就是r6版本中的新技術，本文首先詳細介紹了hsupa物理層的技術特徵，然後以其技術特點為依據，按照3gpp的模擬需求和系統級的模擬需求，使用matlab構建hsupa的上下行物理層鏈路，對其數據通道和控制通道進行模擬驗證，從而了解通道的性能，為系統模擬提供模擬數據，為以後的實際應用打下基礎，達到預研的目的。
  10. Hippi - 6400 - ph information technology - high - performance parallel interface - 6400 mbit s physical layer hippi - 6400 - ph

    信息技術.高性能并行介面. 6400mbit s物理層
  11. Isdn. telecommunications - integrated services digital network management - primary rate physical layer

    電信.綜合服務數字網路
  12. Audio video bus av bus physical layer and media specification

    視頻音頻母線物理層和介質規范
  13. Electricity metering - data exchange for meter reading, tariff and load control - part 42 : physical layer services and procedures for connection - oriented asynchronous data exchange

    電量計.抄表電費和負荷控制的數據交換.第42部分:面向連接的異步數據交換用物理層使用和程序
  14. Secondly, based on the function requirement of usb device controller the system was divided into five modules, clock extracting, event detect, physical layer interface, media access controller, endpoint control layer and every module was designed in detail

    其次，針對usb設備控制器的功能要求，將系統分為時鐘提取、事件檢測、物理層、介質訪問層、端點控制層五個模塊並對每個模塊進行了詳細設計。
  15. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  16. Twisted pair physical layer and medium specification

    雙絞線物理層和介質規范
  17. Cdpd. cellular digital packet data - airlink physical layer

    蜂窩式數字分組數據
  18. This thesis presents the studies of the physical layer of power line communications, which is an ofdm - based transmission system. it gives feasible algorithms, and primary implementation of some key modules is discussed as well

    本文主要的研究對象使基於ofdm的電力線載波通信傳輸系統的物理層，對電力線載波通道進行了著重的分析，給出響應的估計演算法以及硬體實現模塊。
  19. The definition of physical layer of hsdpa in the first stage is almost completed, but radio resource management is under development

    目前，第一階段的hsdpa的物理層已經成熟，但hsdpa的無線資源管理仍需完善。
  20. Ethernet maps the two lowest layers of osi model ( seven - layer module ) : data link layer and physical layer and divides them to some function sublayers including pcs ( physical coding sublayer ), pma ( physical medium attachment ) and pmd ( physical medium depend ) in physical layer. in these sublayers, logical link control ( llc ) is implemented through operation system, nic driver software and medium access control ( mac ) and the physical layer below it are implemented by the nic

    以太網對應了osi開放系統模型（ 7層網路模型）的最下兩層：數據鏈路層和物理層，並將其細分為一些功能子層，包括數據鏈路層的llc （邏輯鏈路控制）子層和mac （介質訪問控制）子層，物理層的pcs （物理編碼子層） 、 pma （物理介質附加子層）和pmd廈門大學碩士學位論文摘要（物理介質相關于層） 。
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