common data channel 中文意思是什麼
common data channel
解釋
公共數據通道-
Due to the characteristics of the powerline channel, the plc system is different from the common wire network and makes high - speed data transmissions very challenging
本文主要在就以電力線網路為基礎的家庭網路的調制技術、媒質接入控制（ mac ）協議和tcp協議方面進行了探討。 -
Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。 -
Considering practical needs and developing trend of vts, based on analyzing the signal characters of vts radar video, studying basic data compression principles in information theory, comparing international coding standards in the forefront of image processing, a vts radar video coding system suitable for transmission in the narrow channel is proposed in this thesis. its main block ? oder and decoder, is realized in the common pc with software. the working process is demonstrated detailed
結合vts系統的現實要求和發展方向，本文從vts雷達原始視頻圖像數據的特點出發，從信息論中關于數據壓縮的基本原理出發，從現代信號處理特別是圖像信息處理領域中的壓縮編碼國際標準出發，提出了雷達原始視頻編解碼系統方案，其主體部分? ?編解碼器是在pc機內利用壓縮軟體實現，闡述了系統工作流程；提出了基於jpeg壓縮演算法和h -
Common data interfaces used in radio include rs - 232, etc. as the rapid growth of data speed in data radio, asynchronous serial port does not meet the need of data transmission of high - speed data radio. data radio is gradually using ethernet interface as high - speed data radio ’ s data interface, to function as a high - speed data channel between host computer and data radio. this paper brings forward a universal radio interface protocol model, whose core is taking ethernet as a high speed data channel in network protocol stack
本文針對電臺的以太網介面，經過對各種電臺的功能分析，提出了一種通用的在以太網通信中適用的報文介面協議模型，其核心思想是將以太網作為網路協議棧中內部的高速數據傳輸通道來使用，作為鏈路層和物理層之間的內部介面，同時提供電臺控制和數據傳輸兩大功能模塊。 -
First, under the given boundary condition and reasonable simplified condition, this paper develops radiation transmitting equations in atmosphere applied in infrared waveband and visual light waveband from common equation of radiation transmitting. then, the formula between observation of satellite and net surface radiation is established according to the developed equations, from which it is found that net surface radiation is relative to sun zenith, land surface and cloud albedo, etc. at last, by using data of satellite visual light ( vis ), infrared 1 ( ir1 ), infrared 2 ( ir2 ) and water vapor ( ir3 ) channel, sun zenith and net surface radiation, a regression formula is built
本文從大氣中太陽輻射傳輸的一般性方程入手，引入邊界條件及簡化條件，推導出紅外波段和可見光波段的大氣輻射傳輸方程，由此建立起衛星觀測輻射與地面凈輻射的關系，文章還就衛星觀測到的輻射與雲量、雲高、雲的光學厚度、雲及地面反照率等之間的關系進行了理論分析，可以幫助更好地理解雲對地面凈輻射的影響。 -
Fibre channel is a technology for 1 - gigabit - per - second data transfer that maps common transport protocols such as scsi and ip, merging networking and high - speed i / o in a single connectivity technology
光纜是一種每秒傳輸十億位數據的技術，它可以映射普通的傳輸協議（例如scsi和ip協議） ，並將網路連接和高速i / o合併成單一連接。
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