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基于LabWindows/CVI的虚拟仪器设计.pdf

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基于LabWindows/CVI的虚拟仪器设计.pdf目录541功能描述……口中…14754.2设计原理…147543设计步骤………………4855设计举例4基数字滤波技术的虚找频率补偿仪…55I功能描述…………154552设计原理…………………………4154553设计步骤159第6章基于相关伪随机技术的虚拟仪器设计……………17161相关辨识的基础知识6l1系统数学模型的主要描述形式…吧看罪甲噜看音·自老·着着。甲曾會自·看着174612系统输入输出关系的卷积表述形式175613由系统的冲激响应函数求系统的频率特性…177614相关辨识法的优点………………1762伪随机信号—相关辨识实际采用的激励信号9621伪随机信号的性质……………180622M序列伪随机信号的产生62.3 Labwindows/cⅥ环境中M信号的产生…………184▲63设计举例口和2—伪随机相关辨识仿真仪灬194631例[一一阶系统辨识仿真仪………………194632例[2}_二阶系统辨识仿真仪……208▲64设计举例3}-系统参数辨识实测仪-25641功能描述…………………216642设计原理……………………216643设计步骤bb●自看是题bDpD命各备命罪即非国百D看山會看看看q看甲q:音ts223644系统参数辨识仪的性能检验…236645小结239第7章基于神经网络的虚拟仪器设计………吾号.·D罪D·咖自音噜唱日司看自命是··昏b●甲」24171概述……………………247.2神经网络基础知识…4721神经网络结构………244722神经元模型……246723神经元作用函数…247724BP神经网络250基于凵 abwindows/C的虚拟仪设计72.5径向基(RBF)神经网络……25573 MATLAB工具箱中的BP与RBF函数5731BP与RBF网络创建函数……257732网络训练函数………259733网络初始化函数2637.34网络学习函数pseD即■日■■曾264735网络仿真函数酯“着申自曲量ab血a▲bdd暴Db自合·看单■即非兽pD鲁26674设计举例[虚拟压力传感器温度补偿器…26266741功能描述…………742工作原理……267743设计步骤…命a4.品中B自●非昏·:·:是PP…271L75设计举例2一虚拟三组分气体成分分析仪的设计2837.51功能描述…单当香s·.甲命命甲二··········a283752工作原理……………283753设计步骤………87754设计小结…297第8章基于小波分析的虚拟仪器设计……2998.1小波分析基础…已得…,…下不已是811小波分析与短时傅里叶变换………301812离散小波与小波对偶品百·。命自日自目即合D即章矿●印·…306813小波级数多事品◆晶号提品4··B旨自D导看308814多分辨分析初步……309815正交小波…316816小波包分析………:32382 MATLAB王具箱中小波分析函数…325821小波包函数……p品a由自日自值合◆··年卓看自53483设计举例一虚拟小波消噪仪…340831小波消噪原理..340832虚拟小波消噪仪设计a品血吾春自白看令节自B导342L84设计举例2—虚拟特征信号提取仪8.41特征信号小波提取原理灬………………350842仪器功能中▲如婚+44“亠b白自自4·1··.……350843仪器设计………………350目录844运行测试…356第9章基于混沌技术的虚拟仪器设计·是Da命品西·盲血·鲁自D鲁唱唱非看4看a■自…357▲9.1概述………………35992混沌技术基础知识0921基于 Duffing方程实现频率测量检测原理…………360922基于 Logist迭代方程产生白噪声的原理…………36993设计举例一基于 Logist方程的虚拟白噪声发生器…375931设计举例1基于 Logist方程的虚拟白噪声仿真仪…375932设计举例[2]_基于 Logist方程的拟简易白噪声发生器…380933设计举例3}基于 Logist方程的虚拟白噪声发生器及其性能评估仪■D即口即即要号■………384h94设计举例基于混沌技术的频率仿真测试仪一941功能描述…………………389942工作原理……390943混沌精密频率仿真测试仪的实现396944性能校验……3999.5设计举例2]基于混沌技术的精密频率实测仪”399第10章基于模糊理论的虚拟仪器设计……●鲁看●4命1a!模糊集合理论概述”010L1模糊集合的定义及其表示方法…P·●吾音p聊·品日.···P.身10.12隶属函数的确定方法及常用形式10.1.3模糊集合的基本运算……41010.14模糊关系的定义及合成……●pb自●哥司q■P省…4ll10.1.5语言变量与模糊推理…………………413102模糊传感器系统“……………1021测量结果“符号化表示”的概念…4151022模糊传感器的基本概念和功能………中中416102.3模糊传感器的结构………备合自看司q·是即即罪罪看血咖音看叠看4q●命4171024模糊传感器语言描述的产生方法……………4200.25模糊传感器对测量环境的适应性………………4241026模糊传感器隶属函数的训练算法…………426103设计举例1虚拟模糊热点温度分析仪301031功能描述…………430蒹于 Labwindow/QⅥ的盧拟仪暴设计1032工作原理着看■舞非罪阜444■p●鲁看要1033设计步骤432110.4设计举例2]高级虚拟模糊热点温度分析仪…………43810.1功能描述…4381042实现原理………………………………4381043设计步骤……43第11章网络化虚拟智能传感器系统……………………4611112网络体系结构与协议……………“4631111网络体系结构……4631112 Lab windows/CⅥ中的主要协议…………4671113 DataSocket技术……472112组建网络化虚拟智能传感器系统的模式…475112,1CS模式…………………………476122B/S模式476网络化虚拟正弦波发生器1131设计原理………1画画D备即命●●看卓自白自↓td.自占即命自咖自·t477113,2仪器功能描述478113.3仪器设计……………4781134编译运行……D。春明中血自■■…487114设计举例2)基于C模式的远程开关控制器的设计………48114.1系统的工作原理4881142仪器功能描述…4881143仪器设计…咖·d日·自·暴■■非罪自咖4●看省·b导···号q48944编译运493参考文献…………95VIll绪论成拟伙器还应数伙器饱发展及持点原书空白第1章蜻忪由于电子技术、计算机技术的高速发属及其在电子测量技术与仪器领域的应用,新的测试理论、测试方法、测试领域以及仪器结均不断出现,电了测量仪器的功能和作用发了质的变化,计算机处于核心地位,计算机软件技术和测试系统更紧密地结合成了个有机整休,仪器的结构概含和设计观点等都发生了突破性的变化。在上述的背景下,出现、仝新概念的仪器—虚拟仪器。本章在介絰有关虚拟仪器的基本概念、组成、发展过程及发展趋势的基础上,重点阐述“软件就是仪器,仪器就足软件”的观点。在本章中,将学到如下内容≥虚拟仪器的基本概念虚拟仪器的组成特点虚拟仗器的设计与实现方法少虚拟仪器的发展过程及发展趋势1.痃担仪欲枇遗虚拟仪器( Virual instrurenent,简称ⅥI)是现代计算机技术和仪器技深层次结合的产物,是当今计算机辅助澳试(CAT)领域的一项重要技术。虚拟仪器是计算机硬件资源、仪器与测控系统硬件资源和虚拟仪器软件资源三者的有效结合。1.11虚戏仪器的基本概念所谓虚拟仪器,就是在以计算机为核心的硬件平台上,由用户设计定义具有虚拟面板,其测试功能由测试软件实现的一种计算机仪器系统。虚拟仪器的实质是利用计算机显示器模拟传统仪器的控制面板,以多种形式输出检测结果;利用计算机软件实现信号数据的运算、分析和处理;利用O接口设备完成信号的采集、测量与调理,从而完成各种测试功能的一和计算机仪器系统。使用者用鼠标或键盘操作虚拟面板,就如同使用一台专用测量仪器虚拟仪器的“虚拟”两字主要包含以下两方面的含义。1.虛拟仪器的面板是虚拟的虚拟仪器面板上的各种“控件”与传统仪器面板上的各种器付所元成的功能是相同約,并扫各种开关、按钮、显示器等实现仪器电源的“通”或“断暴于 Labwindow/Ⅵ的姒仪器谩计被测信号“输入通道"、“放大倍数”等参数设置,测量结果的“数值显示或“波形显示”等。传统仪器面板上的器件都是“实物”,而且是由“手动”和“触摸”进行探作的,而虚拟仪器面板控件是外形与实物相像的“图标”个控科的j”“断”、“放大”等动作是通过用户对计算机鼠标或键益的操作米完成!。因此,设计虚拟面板的过程就是在板设计窗口中摆放所需的控件,然后对控件进行合逗的属性投置。2.虍拟仪器则量功能是由软件编程来实现的在以计算机为核心组成的硬件平台支持,通过软件编程设计来实现仪器的功能,可以通过组合不同的测试功能软性模块来实现多种测试功能,因此,在硬件平台确定后,有“软件就是仪器”的说法,这也体现了测试技术与训算机的深层次结合。1.12虚拟仪器的构成及其分类虚拟仪器通用仪器硬件平台(简称硬什平台)和应用软件两大部分构成。1.虚拟仪器的硬件平台构成拟仪器的硬件平台包括两部分。(1)计算机它-般为-台PC或者工作站,是硬件平台的核心(2)JO接口设备IAO接口设备要完成被测输入信号的采集、放大、愧数转换。不同的总线有其坩应的IO接口硬件设备,如利用PC总线的数据采集卡版(DAQ)GPB总线仪器、VXI总线仪器模块.串口总线仪器等。虚拟仪器的构成方式主要有五种类型,如图1.1所示。≯ PC-DAQ系统PC-DAQ系统是以数据采集板、信号调理电路及计算机为仪器硬件平台组成的插卡式虚拟仪器系统。这种系练用PCI或IA计算机本身的总线将数釆卡板(DAQ〕插入计算机的PCI或ISA插槽中。4

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  • MIPI Alliance Specification for D-PHY
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The material contained herein is4 provided on an"as iS basis and to the maximum extent permitted by applicable law, this material is5 provided AS IS AND WITH ALL FAULTS, and the authors and developers of this material and MIP6 hereby disclaim all other warranties and conditions, either express, implied or statutory, including, but not7 limited to, any (ifany)inplied warranties, duties or conditions of merchantability, of fitness for a8 particular purpose, of accuracy or completeness of responses, of results, of workmanlike effort, of lack of9 viruses, and of lack of negligence10 All materials contained herein are protected by copyright laws, and may not be reproduced, republisheddistributed, transmitted, displayed, broadcast or otherwise exploited in any manner without the express12 prior written permission of MIPI Alliance. MIPl, MIPI Alliance and the dotted rainbow arch and all related3 trademarks, tradenames, and other intellectual property are the exclusive property of MIPI Alliance and14 cannot be used without its express prior written permission15 ALSO, THERE IS NO WARRANTY OF CONDITION OF TITLE, QUIET ENJOYMENT, QUIET16 POSSESSION. CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT WITH17 REGARD TO THIS MATERIAL OR THE CONTENTS OF THIS DOCUMENT.IN NO EVENT WILLI8 ANY AUTHOR OR DEVELOPER OF THIS MATERIAL OR THE CONTENTS OF THIS DOCUMENT9 OR MIPI BE LIABLE TO ANY OTHER PARTY FOR THE COST OF PROCURING SUBSTITUTE20 GOODS OR SERVICES. LOST PROFITS. LOSS OF USE. LOSS OF DATA OR ANY INCIDENTAL.21 CONSEQUENTIAL, DIRECT, INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER22 CONTRACT TORT WARRANTY OR OTHERWISE ARISING IN ANY WAY OUT OF THIS OR23 ANY OTHER AGREEMENT SPECIFICATION OR DOCUMENT RELATING TO THIS MATERIAL24 WHETHER OR NOT SUCH PARTY HAD ADVANCE NOTICE OF THE POSSIBILITY OF SUCH25 DAMAGES26 Without limiting the generality of this Disclaimer stated above, the user of the contents of this Document is27 further notified that MIPI: (a)does not evaluate, test or verify the accuracy, soundness or credibility of the28 contents of this Document;(b)does not monitor or enforce compliance with the contents of this Document29 and (c)does not certify, test, or in any manner investigate products or services or any claims of compliance30 with the contents of this Document. The use or implementation of the contents of this Document may31 involve or require the use of intellectual property rights ("IPR")including(but not limited to) patents32 patent applications, or copyrights owned by one or more parties, whether or not Members of MIPIMIPI33 does not make any search or investigation for IPR, nor does miPi require or request the disclosure of any34 IPR or claims of IPR as respects the contents of this document or otherwise35 Questions pertaining to this document, or the terms or conditions of its provision, should be addressed36 MIPI Alliance. Inc37 c/o IEEE-ISTO38 445 Hoes lane39 Piscataway, NJ0885440 Alin: Board SecretaryCopyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member ConfidentialVersion1.00.0014-May-2009MIPI Alliance Specification for D-PHY42 Contents43 Draft Version 1.00.00-14 May 2009441 Overview1451.2 Purpose.…..,.,.,,.,..472 Terminology…2.1 Definitions162.2 Abbreviations…172.3 Acronyms51 3 D-PHY Introduction523.1 Summary of Phy functionality533.2 Mandatory Functionality················2054 4 Architecture21554.1 Lane modules…564.2 Master and slave2254.3 High Frequency Clock Generation22584.4 Clock lane data lanes and the phy-Protocol interface.224.5 Selectable Lane Options·;····················234.6 Lane Module Types4.6.1 Unidirectional Data Lane…264.6.2 Bi-directional data lanes26634.6.3 Clock lane.274.7 Configurations….7654.7.1 Unidirectional Configurations............664.7.2Bi-Dal Half-Duplex Configurations674.7.3 Mixed Data Lane configurations32Copyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member Confidential111Ⅴ ersion1.00.0014-May-2009MIPI Alliance Specification for D-PHY695.1Transmission Data Structure,………………………∴335.1.1Data unitsa勹5.1.2 Bit order Serialization and De-Serialization33725.1.3 Encoding and decoding735.1.4 Data Buffering,33745.2 Lane States and Line levels755.3 Operating Modes: Control, High-Speed, and Escape5. 4 High-Speed Data Transmission··········;·5. 41 Burst payload data785.4.2 Start-of-Transmission795.4.3End-of-transmission805.4.4 HS Data Transmission burst.365.5 Bi-directional data Lane turnaround5.6 Escape Mode41835.6.1Remote triggers42845.6.2 Low-Power data Transmission43855.6.3 Ultra-Low Power State865.6.4 Escape Mode State Machine43875.7 High-Speed Clock Transmission885. 8 Clock lane Ultra-Low Power State50959 Global Operation Timing Parameters.……5.10 System Power States56915.11 Initialization56925.12 Calibration5.13 Global Operation Flow Diagram57945.14 Data Rate Dependent Parameters(informative)955. 14.1 Parameters Containing Only UI values965. 14.2 Parameters Containing Time and Ul values59Copyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member ConfidentialVersion1.00.0014-May-2009MIPI Alliance Specification for D-PHY5.14.3 Parameters Containing Only Time Values…………5.14.4 Parameters Containing Only Time Values That Are Not Data Rate Dependent6 Fault detection611006.1 Contention detection1016.2 Sequence Error Detection.……611026.2.1 SoT Error621036.2.2 SOT Sync Error1046.2.3 EoT Sync Error1056.2. 4 Escape Mode Entry Command error.1066.2.5 LP Transmission Sync error621076.2.6 False Control error1086.3 Protocol Watchdog Timers(informative)62l096.3.1 HS RX Timeout6.3.2HS TX Timeout………………·················+···:··:·················∴62l116.3.3Escape mode timeout62l126.3. 4 Escape Mode Silence Timeout6.3.5 Turnaround errors114 7 Interconnect and Lane Configuration.641157.1 Lane configuration1167.2 Boundary Conditions.....…647.3 Definitions………64l187.4S- parameter Specifications………….651197.5 Characterization Conditions207.6 nterconnect Specifications………1217.6.1 Differential characteristics1227. 6.2 Common-mode characteristics671237.6.3 Intra-Lane Cross-Coupling1247. 6. 4 Mode-Conversion limitsCopyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member ConfidentialVersion1.00.0014-May-2009MIPI Alliance Specification for D-PHY1257.6.5 Inter-Lane Cross-Coupling671267. 6.6 Inter-Lane static skew1277.7 Driver and receiver Characteristics1287.7.1 Differential Characteristics1297. 7.2 Common-Mode characteristics1307.7.3 Mode-Conversion Limits1317.7.4 Inter-Lane Matching132 8 Electrical Characterislics701338.1 Driver characteristics1348.1.1 High-Speed Transmitter1358.1.2 Low-Power Transmitter1368.2 Receiver Characteristic·…············…·······…8301378.2.1 High-Speed Receiver801388.2.2Low- Power receiver.................….….821398.3 Line contention detection1408.4 Input Characteristics8441 9 High-Speed Data-Clock Timing1429.1 High-Speed Clock Timing861439.2 Forward High-Speed Data Transmission Timing871449.2.1 Data-Clock Timing Specifications1459.3 Reverse High-Speed Data Transmission Timing89146 10 Regulatory Requirements91147 Annex A Logical PHY-Protocol Inter face Description(informative)92148A 1 Signal Description149A 2 High-Speed Transmit from the Master Side150A3 High-Speed receive at the slave Sidel00151A 4 High-Speed Transmit from the Slave side152A.5 High-Speed Receive at the Master SideIOICopyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member ConfidentialVersion1.00.0014-May-2009MIPI Alliance Specification for D-PHY153A6 Low-Power Data Transmission102154A7 Low-Power Data Reception.103155A 8 Turn-around156 Annex B Interconnect Design Guidelines (informative)105157B. 1 Practical distances105158B 2 RF Frequency Bands: Interference.105B3 Transmission Line design160B4 Reference Layer.106161B 5 Printed-Circuit board106162B6 Flex-foils106163B 7 Series resistance106164B 8 Connectors106165 Annex C 8b9b Line Coding for D-PHY(normative)107166C 1 Line Coding Features...·············108167C.1.1Enabled Features for the Protocol108l68C 1. 2 Enabled Features for the Phy108169C2 Coding scheme170C 2.1 8b9b Coding Properties.....108171C 2.2 Data Codes: Basic Code Set……….109C.2.3 Comma Codes: Unique Exception Codes110173C 2.4 Control Codes: Regular Exception Codes…10174C.2.5 Complete Coding Scheme………175C 3 Operation with the D-PhY…11117yload: Data and Control177C.3.2 Details for Hs transmission………112178C.3.3 Details for LP Transmissionl12179C 4 Error Signal180C5 Extended PplCopyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member ConfidentialⅤ ersion1.00.0014-May-2009MIPI Alliance Specification for D-PHYl81C.6 Complete Code Set.….….l15182Copyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member Confidentialv111Version1.00.0014-May-2009MIPI Alliance Specification for D-PHYl83Figures184 Figure 1 Universal Lane Module functions21185 Figure2 Two Data Lane PHY Configuration.…………23186 Figure 3 Option Selection Flow Graph4187 Figure 4 Universal Lane Module Architecture25188 Figure 5 Lane Symbol Macros and Symbols Legend189 Figure 6 All Possible Data Lane Types and a basic Unidirectional Clock lane190 Figure 7 Unidirectional Single Data Lane Configuration30191 Figure 8 Unidirectional Multiple Data Lane Configuration without LPDT∴.30192 Figure 9 Two Directions Using Two Independent Unidirectional PHYs without LPDT.........31193 Figure 10 Bidirectional Single Data Lane Configuration31194 Figure 1l Bi-directional Multiple Data Lane Configuration......32195 Figure 12 Mixed Type multiple data Lane Configuration32196 Figure 13 Line level34197 Figure 14 High-Speed Data Transmission in Bursts36198 Figure 15 TX and rX State Machines for High-Speed Data Transmission37Figure16 Turnaround Procedure.……39200 Figure 17 Turnaround State Machine40201 Figure 18 Trigger-Reset Command in Escape Mode202 Figure 19 Two Data Byte Low-Power Data Transmission Example203 Figure 20 Escape Mode State Machine204 Figure2 I Switching the Clock Lane between Clock Transmission and low- Power mode………….47205 Figure 22 High-Speed Clock Transmission State Machine49206 Figure 23 Clock Lane Ultra-Low Power State State Machine········+·+···+·4···207 Figure 24 Data Lane Module State Diagram57208 Figure 25 Clock Lane Module state diagram58209 Figure 26 Point-to-point InterconnectCopyright C 2007-2009 MIPl Alliance, Inc. All rights reservedMIPI Alliance Member Confidential
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