data frame 中文意思是什麼

data frame 解釋
數據幀
  • data : n 1 資料，材料〈此詞系 datum 的復數。但 datum 罕用，一般即以 data 作為集合詞，在口語中往往用單數...
  • frame : n 1 機構；組織；系統。2 結構，框架，構架，骨架，骨骼。3 體格，身軀。 4 精神狀態，心情。5 【園藝】...
  1. The subject has mainly finished designing and debugging software and hardware of a / d decode module, fpga video processing module, video data frame deposit module, base clock produce module, d / a encode module, i2c bus control module, etc. a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing

    本課題主要完成了a d解碼模塊、 fpga視頻處理模塊、視頻數據幀存模塊、基準時鐘產生模塊、 d a編碼模塊、 i ~ 2c總線控制模塊等部分軟、硬體設計及調試。其中a d解碼模塊採集模擬電視信號實現視頻解碼； fpga視頻處理模塊對解碼后的數據進行去噪處理的同時還負責系統的邏輯控制；視頻數據幀存模塊為大量高速的視頻數據提供緩沖區；基準時鐘產生模塊通過輸入基準視頻信號為系統提供精確的相關同步信號； d a編碼模塊在視頻處理模塊的控制下把數字視頻數據轉換成復合電視信號供顯示用： i ~ 2c總線控制模塊模擬i ~ 2c總線時序實現對系統中編、解碼晶元的初始化。
  2. Based on the dsp development board, the author finishes the hardware debug about the multi - channel buffered serial port ( mcbsp ) receiving the output signal from the gps if collector and resolves the software program of the receiving buffer of the multi - channel synchronous serial data, data integration, udp datagram encapsulation and network interface driver, etc. the real - time udp datagram receiving, data frame de - encapsulation and high speed data memory are implemented, and a friend application interface with windows message is developed on the pc

    基於dsp開發板，作者完成了dsp的多通道緩沖串口（ mcbsp ）接收gps中頻接收機輸出信號的硬體調試，並解決了多通道同步串口數據的接收緩沖、數據合併、 udp數據報裝幀及網路介面驅動等軟體編程。在pc端，通過mfc的網路應用開發類casyncsocket實現udp報的實時接收、數據解幀譯碼、高速存貯，利用windows消息機制開發了應用程序友好界面。
  3. C triggering includes start or stop condition, missing acknowledge, restart, eeprom data read, address and or data frame, or 10 - bit write

    觸發功能全面，包括開始或停止條件遺失的確認重起動eeprom數據讀地址和或數據幀
  4. The paper would make a study of construction data frame of large - scale ugis in order to make a sound theoretical ground of the construction of digital city. in the paper, the author brought forward firstly of scheme of topologic coding on ugis classification and coding based on streets and administrative districts according to the existing national standards of ugis classification and coding and corresponding digital city " methods of classification and coding

    在參照國家現有的城市地理信息分類與編碼標準和相應的數字城市分類與編碼方案的基礎上，針對大比例尺城市地理信息系統對城市地理信息分類與編碼的要求，作者首創性的提出了綁定式的城市地理信息分類體系與拓撲編碼方案。
  5. It can be used in any complex environment, can locate all paths from transmitter to receiver which avoid redundant calculation, and it is a standard 3 - d forecast model ; in addition, it is a point to point ray tracing method based on specular theory which do n ' t carry out the receive test ; furthermore the model adopt the reverse arithmetic which exert the tree concept in data frame and establish a virtual fountain tree permanently, the proagmme can back - search the virtual fountain tree when it is running. these operation increase the calculate speed and it result in the higher receive efficiency and precision. the thesis design a programme to compare the prediction results based on ray tracing method of virtual fountain tree between the measurement results and prediction results based on the other transmittion models. the comparsion result indicate the new model is a better model

    它可應用於任何復雜的傳播環境中，能找到發射機到接收機之間的所有電波傳播路徑而無須冗餘的計算，是一種準三維的預測模型；另外，從本質上講，它仍然是一種基於鏡像理論的點對點的射線跟蹤法，所以它無須進行接收測試；而且由於採用了反向演算法，運用數據結構中多叉樹的概念，先確定需要計算的場點位置，找出所有能從源點到達場點的射線，並且可一次性建立一個虛擬源樹，以後每次的計算只要通過對該樹進行後序遍歷即可，大大提高了運算速度，因而有較高的接收效率與精度。本文對該模型進行了相應的模擬，並將其預測結果與實測結果以及基於cost231經驗性模型和基於強力射線跟蹤確定性模型的預測結果進行了比較，結果表明了該模型的優越性。
  6. Other software program includes the receiving of decoded fsk signal from pstn network, the receiving of decoded dtmf signal, auto - routing and the query of bypass data frame et al

    軟體還涉及的內容包括來自pstn網路的fsk解碼信號的正確接收， dtmf信號的收號與路由控制，以及查旁路數據結構等內容。
  7. A standardized communication protocol is running on all instruments, which is built by ourselves and has the code name of flexlynx, it provide complex functions like data frame generation, data integrity check and time - out retransmission, so that data maintain its integrity while exchanging between pc and instruments

    所有的子系統均運行相同的終端通訊協議，我們自行設計並稱之為flexlynx的協議，這種基於串列口物理設備的協議提供數據包組裝，復雜數據校驗和超時重傳等機制保證可靠的數據傳輸。
  8. The data frame contains data referenced by the control frame

    數據幀包含控制幀所引用的數據。
  9. So two fields must be added into the redesigned data frame

    所以，在新設計的數據幀中須增加包含這兩個信息的域。
  10. A field of a data frame that contains a single transport message. the info field of a control frame is not used

    數據幀中的一個欄位，其中包含一條單獨的傳送信息。控制幀不用信息欄位。
  11. Adaptive modulation can also control quality of service according to transmitted information type and greatly increase capacity of system. the data frames in adaptive modulation communication system must be redesigned. because the sender must tell the receiver the current modulation mode by some bits in the data frame and the receiver must gain the current channel condition from the data frame in order to control its modulation mode and symbol rate

    因為發送方須通過數據幀中的某些比特來通知接收方當前的調制方式和符號速率；同樣，接收方也須從數據幀中某個域的比特流來獲得當前的通道條件信息，從而去控制其調制方式及符號速率。
  12. This paper designs a application - specific real - time protocol based on virtual token and ethernet, which is based on ethernet data - frame protocol and uses idea of token bus network

    本文以以太網幀協議為基礎，借鑒令牌總線網路的思想，設計了有針對性的基於虛擬令牌和以太網的實時網路協議。
  13. By utilizing the busy tones to realize the multicast reliability, rmac has three novelties : it uses a variable - length control frame to stipulate an order for the receivers to respond, thus solving the feedback collision problem ; it extends the usage of busy tone for preventing data frame collisions into the multicast scenario ; and it introduces a new usage of busy tone for acknowledging data frames positively

    例如， ieee 802 . 11 ，現今應用最廣泛的無線mac協議，僅在單播unicast通信方式下提供可靠數據傳輸服務，而對于組播和廣播兩種通信方式，它僅傳輸數據一次，即使數據傳輸出錯，也不會重傳。然而近幾年來，由於無線網路應用的蓬勃發展，人們逐漸認識到在mac層提供可靠組播服務是非常必要的。
  14. In the first part of this thesis, current situation of the access network and the technical of pon are introduced briefly. then, the epon system structure, osi protocol model, especially the mpcp sublayer are introduced, the epon control frame and data frame changed form ethernet frame are analyzed

    本文首先介紹接入網技術的發展狀況和無源光網路的主要技術類型，以及epon系統的網路結構、 osi分層模型，重點介紹epon系統特有的mpcp子層，分析epon系統對以太網數據幀所做的修改和新添加的epon控制幀。
  15. This is achieved by applying a new data frame and a linear placement strategy to reduce both the network load and the redundant information transmission

    該拓撲結構採用了新的數據幀傳輸格式和線形置放策略，從而可減少網路負載量和冗餘信息的傳輸。
  16. A fpga is used as the controller, performing the necessary processing such as eliminating the head of the encoded data frame, storing the speech data into fifo and transmitting it

    控制晶元採用fpga ，完成復位、分頻及對已編碼幀數據進行去幀頭、在fifo中暫存等處理並以低速率發送。
  17. This article designs the data frame of adaptive modulation system and implementation of it through fpga

    本文據此要求設計了自適應調制系統的幀結構，並用cpld技術來實現。
  18. 3. implementing the serial communication between the cms and lms. putting forward two rules for software flow control and data transmission, as well as implementing the relevant design for command frame, return frame and data frame of them

    （ 3 ）解決了cms與lms之間的串口無線通信問題，提出了一種軟體流量控制規程與數據傳輸規程，並設計了相應的命令幀、回應幀及數據幀的結構。
  19. Each frame has the same format, whether it is a data frame or a control frame

    無論是資料訊框或控制訊框，每個訊框都有相同的格式。
  20. Data frame and spectral simulation for remote sensing spectral data base

    典型地物波譜庫的數據體系與波譜模擬
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