radio universal 中文意思是什麼
radio universal
解釋
宇宙電臺-
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。 -
Software defined radio ( sdr ) has been the trend of the research and development of radio, and its core idea is to provide a software system which can enable reuse and reprogram of common blocks on an universal hardware platform, so as to deal with the traditional inconsistent communication systems and solve the cooperating communication problems
軟體定義無線電臺（ sdr ）已成為當今及未來無線電系統研究及發展的方向，其核心思想是在通用的硬體平臺上，提供一種具有組件可重用，可重編程等功能的軟體系統，解決傳統通信系統體制不統一，協同通信能力差的問題。 -
The seminar will focus on the practical aspects of universal implementation of machine readable passports, the enhancement of machine readable travel documents with biometric identifiers and the use of radio frequency identification ( rfid ) technology at airports. more than 150 delegates from 18 statesterritories including the united states, the united kingdom, australia, canada, new zealand, japan, malaysia, singapore, thailand and republic of korea, will participate in the seminar
是次研討會將集中討論全球推行可供機器閱讀的護照的實際問題、加強使用附帶生物特徵的可供機器閱讀的旅遊證件及無線射頻科技在機場的應用。出席研討會的共有超過150名來自18個締約國地區的代表，包括美國、英國、澳洲、加拿大、紐西蘭、日本、馬來西亞、新加坡、泰國及南韓等。 -
On the basis of the theory of software radio, this paper discusses how to design and develop a realtime digital signal processing system in graphic programming language on a universal hardware workbench of digital signal processing aiming at satellitic intermediate frequency signal
本文論述了基於軟體無線電思想，在一個通用的數字信號處理硬體平臺上，針對衛星中頻信號，用美國國家儀器公司提供的開發虛擬儀器的labview平臺研製開發了一個實時的數字信號處理系統。 -
In this disseration the author researched the testing of gsm mobile telephone of the wireless instrument test and carried out it. the work that i shoud do is acquire the testing content 、 standard and method of test of the gsm mobile telephone, then write the driver program of the cmu200. first acquaint the communication system of gsm ; second introuced and analysized the technology of the software and hardware of control the programmable instrument, which include ieee 488 ( gpib ) standard bus 、 scpi ( standard commands for programmable ) and visa ( virtual instrument system architecture ) ; third reaserach the technology of software, it employs visual c + + 6. 0 as application development platform because of its powerful function, universality and programming and employs com module because of its characteristic 、 superiority ; the last ascertain the testing item and its standard 、 mehtod through searching the principle of gsm mobile and its testing criterion and select the programble instrment for testing according to the mobile telephone demands, which include cmu200 ( universal radio communication tester ) 、 e4445a ( spectrum analyzer ) 、 e4438c ( signal generator ), all of this build the platform of testing. i realize the automatic testing of gsm mobile telephone by using com module and visa 、 scpi
論文中首先了解了gsm通信系統及其關鍵技術;再者研究分析了可編程儀器控制的軟硬體技術，包括ieee488 （ gpib ）標準總線、 scpi （ standardcommandsforprogrammableinstruments可編程儀器標準命令）和visa （ virtualinstrumentsystemarchitecture虛擬儀器軟體架構）為對可編程儀器進行驅動編程打下基礎;第三步研究了軟體實現技術，對組件的優勢和com的特點進行了分析確定採用com組件技術來完成驅動模塊;最後根據移動臺測試要求選擇可編程測量儀器cmu200綜測儀、 e4445a頻譜儀、 e4438c信號源和一臺測量控制計算機搭建起了測試平臺，研讀可編程儀器cmu200綜測儀的scpi命令和visa （虛擬儀器軟體架構） ，根據gsm移動臺測試方法在vc開發平臺下採用com組件形式完成對cmu200的驅動編程從而實現對gsm移動臺的自動測試。 -
Multi - input multi - output ( mimo ) is expected to be an important component of long term evolution ( lte ) of 3g systems particularly for the downlink evolved universal terrestrial radio access ( e - utra )
摘要多輸入多輸出技術被預期是在第三代通訊系統長程發展下用於下鏈高級通用無線接取中一個非常重要的構成要素之一。 -
The paper provides a visual modeling scheme using object - oriented technology, and does experiments for current impulse response models from model change to parameter design to graphical modeling. the frame is a visual solve for simulation analysis and transmission forecast of radio channels. on the one hand, the paper takes classic radio channels as independent objects and builds their graphical models, comes into being a visual universal model library
本文深入研究了無線通信通道、尤其是多徑通道的傳輸特性，提出一種基於面向對象的可視化無線通道建模和模擬方案，對具有普適性的通道沖激響應模型進行了從模型轉換、參數設計到圖形建模等環節的實驗，建立起統一的、一體化的通道建模模擬實驗框架，為無線移動通道的分析、建模、模擬和傳播預測提供了一種可視化的解決方案。
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