analog communication 中文意思是什麼
analog communication
解釋
模擬通信- analog : n. ＝ analogue.
- communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
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This text summarises several control forms of gushing out oil pump test platform simply, and mainly proposes analog and digital control schemes of close ring adjusting speed, at the same time, gives the principles and implementation methods used in parameters control and measuring, this text introduces the asynchronous electromotor " s control process, in which, fuzzy control arithmetic is used, and the control commands are passed on by means of communication between mcu and frequency converter. there are two parts in this system. one is superior computer that is ordinary pc, the other is hypogynous at89c52. the functions of superior pc are control and display information through screen, and the functions of ats9c52 includes control, collecting, display, treatment, uploading of all parameters
詳細介紹了應用模糊控制演算法，以變頻器通訊方式進行異步電機調速的控制過程。系統由上位機和下位機兩部分組成。上位機為普通pc機，主要實現系統控制、數據顯示等功能，另外還有數據庫瀏覽、數據列印等功能；下位機以at89c52為核心，負責所有參數的採集、處理、顯示、上傳、控制等。 -
The superstratum interfaces are designed with vb6. 0. it can examine and display digital signals and analog signals, and set communication port simply by asking
上層界面用vb6 . 0設計，所設計的界面能對單片機採集的模擬信號和數字信號進行顯示與處理，並能根據需要設置通信埠，操作簡單，具有實用價值。 -
After the evolution from analog to digital, and from fixed to mobile communication, radio systems are undergoing the third revolution from hard - wired radios to software - defined radios
軟體無線電是無線電領域模擬通信到數字通信，固定通信到移動通信之後，從硬體定義的無線電通信到軟體定義的無線電通信的第三次革命。 -
Digital speech has preponderance over analog speech in reliability, robustness and security during communication. however, digital speech needs more bandwidth than the analog signal. especially with the requirement for communication frequency increasing, it ' s necessary to code speech signal at low rates
但是，數字化后的信號所佔的頻帶大幅增加，特別是在帶寬需求日益增長的今天，這個問題尤為突出，因此語音的低速率編碼（即壓縮編碼）成為迫切的要求。 -
It can provide many functions : the conversion between transfer formats, the conversion between communication protocols, the conversion between analog signals and digital signals, the conversion of control commands, real time audio code / decode, ip call control, control of rtp / rtcp, call detail logs, accounting and some of gatekeeper ' s functions such as address tansfer / search.
它提供以下功能：傳輸格式間的轉換，通信規程間的轉換，音頻、數據格式轉換，呼叫控制信令的轉換，對pstn的呼叫控制功能， pstn電路交換功能，實時語音處理語音壓縮功能， ip網路呼叫控制功能，對實時對話協議rtp rtcp的控制功能，呼叫日誌，計費功能，還包括關守的地址翻譯搜索等功能。 -
The basic elements of a control system using a digital computer consist of the data - gathering devices which perform analog - to - digital conversion on data form the system which is to be controlled ; the digital computer itself, which performs calculations on the data supplied and makes the necessary decisions ; and the means of communication with, or control over, certain of the elements in the external environment
由在數據上執行模擬數字的轉化的設備形成將被控制的系統的集合數據使用一臺數字的計算機的一個控制系統的基本的元素組成;數字的計算機自己，在供應的數據上它執行計算並且做必需的決定;並且通訊的工具與，或控制上，肯定在外部的環境的元素的。 -
Modulation technology are well - suited to the implementation of analog interfaces in digital communication and signal processing systems
Adc非常適合用來實現數字通信系統和信號處理系統中的模擬介面部件。 -
The structure, function and characteristic with the principle and method of tank gauging system are described. then the structure, principle of the circuit and the main chips of the data processing unit are introduced. after this, the software design of data processing unit including rs - 485 ( modbus ) module, 4 - 20ma analog module, on - off module, rtd module, pulse module, calculation and display module, communication module and neuron chip program module and also the method of resolving the problems which were found at the process of debugging are emphasized
隨后介紹了現場數據處理器的結構，電路原理，所運用的主要晶元；並重點闡述了作者在課題研究中所作的工作，即現場數據處理器軟體的設計包括八個功能模塊： rs - 485 （ modbus ）模塊、 4 ? 20ma模擬量採集模塊、開關量處理模塊、 rtd信號採集模塊、頻率量採集模塊、計算和顯示模塊、通訊模塊、 neuron晶元中的程序模塊；以及在課題研究和現場調試過程中遇到的問題及解決辦法。 -
Pll frequency synthesizer is increasingly used in microprocessor systems and communication. with the development of integrated circuits and the emergence of soc ( system on a chip ) technology, it has been a fundamental and very important module in analog and mixed - signal integrated circuits
鎖相環頻率合成器現在日益廣泛地應用於通訊、微處理器系統中，並且隨著集成電路的發展以及soc技術的出現，其已經成為超大規模集成電路中不可或缺的模塊。 -
Digital to analog converter, analog integrated filter, bandgap reference and high drive capability operational amplifier are indispensability basic circuit of communication system
數模轉換器、模擬集成濾波器、基準電壓源和高驅動能力運放等電路是通信系統中不可缺少的基本電路。 -
First, the paper studies the general platform of analog and digital communication signal modulation and demodulation based on software radio and verifies it with simulation by matlab
本文首先研究基於軟體無線電的模擬、數字通信信號調制解調通用結構，並使用matlab編制了基於軟體無線電調制解調模擬軟體。 -
The mixed - signal flow should realize the communication between the digital circuit and analog one. it includes mixed - signal simulation, integration of the layout of digital and analog circuit, parasitic extraction and post - simulation
數模混合的設計流程要實現數模電路之間的信號通訊，它的主要流程包括：數字模擬電路的混合模擬，數字模擬電路版圖的整合和數字模擬電路提取寄生參數后的模擬。 -
In the previous methods of hardware detection, the communication between the detection devices and the board to be detested is performed mainly through serial interface, and the detection speed and precision ca n ' t meet the requirements. neither can they conduct the thoroughly automatic detection of analog circuit
以前的硬體檢測方法主要通過串口來完成檢測裝置與待測板間的通信，檢測速度和準確度難以滿足要求，也無法實現模擬量迴路完全意義上的檢測。 -
In this article, at first, the dispersion conception and generation reason are explained, and the dispersion influences that are brought about in the analog and digital signal transmission in optical fiber communication are accounted for. next, the dispersion theory of optical fiber is discussed in detail and several useful technologies of dispersion compensation are introduced
論文首先從光纖色散的概念和起因入手，然後從數字和模擬信號傳輸兩個方面，說明了光纖色散對通信的影響，對光纖色散理論作了詳細地闡述和分析，並介紹了幾種已實用的色散補償技術。 -
The first part is the general interface of the hardware, which drives, monitors the ultrasonic sensor, receives signals generated by the sensor, converts the analog signals into numerical formats and sends them to the computer through a communication line. the second part is concerned with designing and implementing the software to be used by the vi
第一部分是以單片機為核心的超聲波發射接收卡的設計，其作用是驅動超聲波探頭工作，接收材料中的缺陷超聲回波信號，將其轉換為計算機可以處理的數字信號，並通過通信總線發送給計算機。 -
Data broadcasting, which boasts the technical advantages of " magnanimity, high - speed and reliability ", is highly valued when compared to the other communication methods and the old - fashioned analog broadcasting systems, and has developed rapidly for the recent several years
（數字）數據廣播具有"海量推送，高速下載，安全可靠"的技術領先性，有其它通信方式和模擬數據廣播不能比擬的優點，在最近幾年獲得了迅猛的發展。 -
Indispensable for high quality optical carrier signal reception in a large dynamic range, agc analog optical receivers are widely used in the optical transmission of radio and microwave signals, such as fiber catv, direct broadcast satellite tv, wireless communication and radar
摘要自動增益控制模擬光接收機廣泛應用於光纖有線電視、光纖直播衛星電視、無線通訊及雷達等射頻微波信號光傳輸，是實現大動態范圍光載波信號高質量接收必不可少的一項技術。 -
Digital video is much better than analog video, the development of digital video accelerates the development of multimedia, video communication and digital tv
數字視頻比模擬視頻具有多種明顯的優點，它的發展推動了多媒體、視頻通信和數字電視等產業的飛速發展，具有重要的研究意義。 -
The digital signal processing, with its superior performances over the analog processing, has drawn wide attentions in the engineering area provide an idea development mode for electronic reconnaissance system, which is different form the communication system in its wide - band processing
數字處理比模擬處理有更優越的性能，正受到工程界越來越多的關注。通信領域軟體無線電的成功應用為電子偵察系統的發展提供了一種理想的模式。電子偵察系統與通信系統最大的區別在於寬帶處理。 -
Since cellular network technology was put forward by bell lab, mobile communication has entered into a fast development period. from first analog generation to second digital generation, and up to wideband 3g and so - called 4g at present, mobile communication aims to personal communication
從第一代的模擬通信到第二代的數字通信，直至第三代的寬帶通信和目前人們提出的所謂4g寬帶多媒體系統，都是在向著個人通信的目標發展。
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