高斯窗的短时傅里叶变换变换程序

在DSP6678下面产生中断，有底层实现代码，中断跳转，中断机理，实现的过程注释。中断向量表。

Convert WGS 84 (CTS, ECEF) Coordinates to ECI (CIS, Epoch J2000.0)

ISO16750-3-2012Road vehicles — Environmentalconditions and testing for electricaland electronic equipment —Part 3:Mechanical loadsContents PageForeword.............................................................................................................................................Iso16750-3:2012[EContentsPageForewordScope12Normative references1Terms and definitions4Tests and requirements4.1ibration4.2 Mechanical shock274.3 Free fall…294.4 Surface strength/ scratch and abrasion resistance294.5 Gravel bombardmentCode letters for mechanical loads29Documentation…,…………111111130Annex A (informative) Guideline for the development of test profiles for vibration tests.32Annex B (informative) Recommended mechanical requirements for equipment depending on themounting location44Bibliography46C ISO 2012-All rights reservedIso16750-3:2012EForewordISo (the International Organization for Standardization) is a worldwide federation of national standardsbodies (Iso member bodies). The work of preparing International Standards is normally carried outthrough iso technical committees. Each member body interested in a subject for which a technicalcommittee has been established has the right to be represented on that committee. Internationaorganizations, governmental and non-governmental, in liaison with ISO, also take part in the workIso collaborates closely with the International Electrotechnical Commission (IEC) on all matters ofelectrotechnical standardizationInternational Standards are drafted in accordance with the rules given in the ISo/IEC Directives, Part 2The main task of technical committees is to prepare lnternational standards. draft InternationalStandards adopted by the technical committees are circulated to the member bodies for votingublication as an International Standard requires approval by at least 75 of the member bodiescasting a voteAttention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rightsIso 16750-3 was prepared by Technical Committee ISO/TC 22, Road vehicle, Subcommittee SC 3,Electrical and electronical equipment.This third edition cancels and replaces the second edition (Iso 16750-3: 2007), which has beentechnically revisedISo 16750 consists of the following parts, under the general title road vehicles-Environmental conditionsand testing for electrical and electronic equipment:Part 1: GeneralPart 2: electrical loadsPart 3: Mechanical loadsPart 4: Climatic loadsPart 5: chemical loadso ISO 2012-All rights reservedINTERNATIONAL STANDARDIso16750-3:2012(E)Road vehicles- Environmental conditions and testing forelectrical and electronic equipmentPart 3Mechanical loads1 ScopeThis part of IS0 16750 applies to electric and electronic systems/components for road vehicles. Itdescribes the potential environmental stresses and specifies tests and requirements recommended forthe specific mounting location on/in the vehicleThis part of iso 16750 describes mechanical loads2 Normative referencesThe following referenced documents are indispensable for the application of this document. For datedreferences, only the edition cited applies For undated references, the latest edition of the referenceddocument (including any amendments applies.Iso16750-1, Road vehicles- Environmental conditions and testing forelectrical andelectronicequipment-Part 1: GeneralIEC 60068-2, 6, Environmental testing- Part 2-6: Testing, Test Fc: Vibration SinusoidalIEC60068-2, 14, Basicenvironmental testing procedures- Part 2-14: Tests-Test Nb: Change oftemperatureTEC 60068-2, 64, Environmental testing Part 2-64: Test methods -Test Fh -Vibration, broad-bandrandom(digital control)and guidanceIEC 60068-2, 80, Environmental testing- Part 2-80: Tests- Test Fi: Vibration - Mixed mode testingIEC 60068-2-31, Environmental testing procedures- Part 2: Tests; Test Ec: Free fall, Clause 5.23 Terms and definitionsFor the purposes of this document, the terms and definitions given in Iso 16750-1 app4 Tests and requirements4.1 Vibration41.1 GeneralThe vibration test metho ds specified consider various levels of vibration severities applicable to on-board electrical and electronic equipment. It is recommended that the vehicle manufacturer andsupplier choose the test method, the environmental temperature and vibration parameters dependingon the specific mounting locationFollowing the expressions in MIL-STD please noticeC ISO 2012-All rights reservedIso16750-3:2012EWhen applied properly, the environmental management and engineering processes described in this partof Iso 16750 can be of enormous value in generating confidence in the environmental worthiness andoverall durability. However, it is important to recognize that there are limitations inherent in laboratorytesting that make itimperative to use proper caution and engineering judgement when extrapolating theselaboratory results to results that may be obtained under actual service conditions. In many cases, realworld environmental stresses (singularly orin combination cannot be duplicated practically or reliably intestlaboratories. Therefore, users of this part of Iso 16750 should not assume that a system or componentthat passes laboratory tests of this part of Iso 16750 would also pass field/ fleet verification trialsThe specified values are the best estimation one can get up to the moment when results frommeasurements in the car are received - but they do not replace a car measurement!The specified values apply to direct mounting in defined mounting locations. Using a bracket formounting can resultin higher or lower loads. If the device under test ( DUT)is used in the vehicle with abracket then all vibration and mechanical shock test shall be done with this bracketCarry out the vibration with the dut suitably mounted on a vibration table. The mounting method (sused shall be noted in the test report. Carry out the frequency variation by logarithmic sweeping of 0,5octave/minute for sinusoidal tests and the sinusoidal part of sine on random tests. The scope of therecommended vibration tests is to avoid malfunctions and breakage mainly due to fatigue in the fieldTesting for wear has special requirements and is not covered in this part of ISo 16750Loads outside of the designated test frequency ranges are to be considered separatelNOTE Deviations from the load on the DUT can result, should vibration testing be carried out according tothis part of Iso 16750 on a heavy and bulky dut, as mounting rigidity and dynamic reaction on the vibrator tableexcitation are different compared to the situation in the vehicle. This deviation can be minimized by applying theaverage control method(see Annex A)Application of the weighted average control method according to IEC 60068-2, 64 is to be agreed uponSubject the dut during the vibration test to the temperature cycle according to iEC 60068-2, 14, withelectric operation according to diagram 1. Alternatively, a test at constant temperature may be agreed onOperate the dutelectrically as indicatedin Figure l at Tmin(Short functional testafterthe dUT completelyreached Tmin). This functional test shall be as short as possible- only long enough to check the properperformance of the dUt. This minimizes self-heating of the dUT. Additional electrical operation of theDUT between 210 min and 410 min of the cycle (see Figure 1)Additional drying of test chamber air is not permittedIn the vehicle, vibration stress can occur together with extremely low or high temperatures; for thisreason, this interaction between mechanical and temperature stress is simulated in the test, too. afailure mechanism is, for example, a plastic part of a system/component, which mellows due to the hightemperature and cannot withstand the acceleration under this condition2o ISO 2012-All rights reservedIso16750-3:2012[EYmax20aburditt0100200300400500600yY temperature[°C]x time [ minIa Operating mode 3.2 according to ISo 16750-1.b Operating mode 2. 1 according to ISo 16750-1One cycleFigure 1-Temperature profile for the vibration testTable 1- Temperature versus time for the vibration testTimeTemperaturemin°C0206040150-4021020300max41048020See Is016750-44.1.2 Tests4.1.2.1 Test I- Passenger car, engine4.1.2.1.1 PurposeThis test checks the dUt for malfunctions and breakage caused by vibrationThe vibrations of a piston engine can be split up into two kinds: Sinusoidal vibration which results from theunbalanced mass forces in the cylinders and random noise due to all other vibration-schemes of an engine,C ISO 2012-All rights reserved3Iso16750-3:2012Ee.g. closing of valves. In the lowest frequency range from 10 Hz to 100 Hz the influence of rough-roadconditions is taken into account. The main failure to be identified by this test is breakage due to fatigueNOTE 1 Road profile usually has negligible impact on engine-mounted components. Shock inputs are effectivelysolated by suspension, and engine-mounting systemsThe test profiles specified in the following clauses apply to loads generated by(four strokereciprocating enginesNotE 2 If the dut is to be tested for a specific resonance effect, then a resonance dwell test according to 8.3.2of IEC 60068-2, 6: 2007 can also be applied4.12.1.2Test4.1.2.1.2.1 GeneralIt is required to perform this test as a mixed mode vibration test according to IEC 60068-2, 80NOTE The test duration is based on A 4. The temperature in the chamher is above room temperature (rt)atthe end of the test (2 3/4 temperature cycles4.1.2.1.2.2 Sinusoidal vibrationPerform the test according to IEC 60068-2, 6, but using a sweep rate of s 0,5 octave/minute. Use a testduration of 22 h for each plane of the dUTUse curve l in Table 2/ Figure 2 for DUT intended for mounting on engines with 5 cylinders or fewerUse curve 2 in Table 2/Figure 2 for dUT test intended for mounting on engines with 6 cylinders or moreBoth curves may be combined to cover all engine types in one test2502001501005050100150200250300350400450500ⅩKeyamplitude of acceleration [m/s2IXfrequency [Hzcurve1(≤5 cylinders)curve 2(5 cylindersFigure 2- Vibration severity curves4o ISO 2012-All rights reservedIso16750-3:2012[ETable 2- values for max acceleration versus frequencyCurve 1(see Figure 2FrequencyAmplitude of accelerationHz100100200200240200270100440100Curve 2(see Figure 2)FrequencyAmplitude of accelerationHm/s2100100150150440150CombinationFrequencyAmplitude of accelerationH1001001501502002002402002551504401504,1.21.2.3 Random vibrationPerform the test according to IEC 60068-2, 64. Use a test duration of 22 h for each plane of the DUTThe r.m.s. acceleration value shall be 181 m/s2The psd versus frequency are referred to in Figure 3 and Table 3NoTE The Power Spectral Density(PSD)values (random vibration] are reduced in the frequency range of thesinusoidal vibration testC ISO 2012-All rights reserved5Iso16750-3:2012EY100100,110100100010000KeyY PSD [(m/s2)2/HzX frequency [Hz]Figure 3- PSD of acceleration versus frequencyTable 3- Values for frequency and PsDFrequencyPSDH:(m/s2)2/Hz1010100103000,5150020200024.1.2.1.3 RequirementBreakage shall not occur.Functional status a see iso 16750-1) is required during operating mode 3.2 as defined in ISo 16750-1and functional status C during periods with other operating modes4.1.2.2 Test II-Passenger car, gearbox4.1.2.2.1 PurposeThis test checks the dut for malfunctions and breakage caused by vibrationThe vibrations of a gearbox can be split up into two kinds which result partly from sinusoidal vibrationfrom unbalanced mass forces of the engine(e. g dominating orders) in the frequency range from 100 Hzto 440 Hz and vibration from the friction of the gear wheels and other schemes, which are tested in therandom part. In the lowest frequency range from 10 Hz to 100 Hz the influence of rough-road conditionsis taken into account The main failure to be identified by this test is breakage due to fatigueChanging the gears can create additional mechanical shock and shall be considered separatey brationsThe test profiles specified in the following subclauses apply to loads generated by gearbox vibo ISO 2012-All rights reserved

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基于matlab的svm预测 代码

【实例简介】基于MATLAB-GUI的数字图像处理课程设计代码，可实现多种图像处理操作

此模型为matlab/simulink忠三相逆变器仿真模型，直流侧为直流电源，交流侧为负载，用SPWM控制。

CA6140拨叉831006课程设计全套打包下载

Axure是一个可以快速制作网页原型并转换成HTML代码的软件，本教程详细的介绍了Axure的操作指导，推荐致力于网页制作的同学和工作人员使用！配置HTIL原型常规常规注注交分目的文件夹d:40011桌面M002选择一个生成Hm原型的输出目录匚生成一关闭3.生成完成后,会自动弹出一个浏览器窗口,打开生成的原型。9) Hone- mozilla Firefox食可节=国m1,∥/0/a0A面00无标题t可关闭框架B DHomePage 2D Page 3enter text左侧是所有页面的列表enter tex右侧是页面内容4.如果是正E浏览器为默认浏览器,选择”允许阻止内容”。a Untitled Document- microsoft Internet Explorer文件吧)编辑①查看0收藏④5)工具〔)帮助Q⊙团心户数☆收的,品园q自地址))D1201桌面0无标题 Start. html①为希助保护您的安全, Internet Explorer尸经阳时件能问绍的计算机的活动内容,单击允许阻止的内容()Close Frames有何风险)?信息栏帮助QomeB Page 1L Page 2B Page 3浏览器,选择“允许阻止内容。r0o3关闭用IE打开 Axure原型时的安全警告由于用 Axure生成的Htm原型带有 JavaScript脚本,用正在本地直接打开的话会出现安全警告。Untitled Document- microsoft Internet Explorer文件①)编辑①查看0收藏④)工具①)w助00⊙后⊙国团搜☆收的·品园变日地址):101桌面102无标题 Start. html①为帮助保护您的安全, Internet Explorer尸经阳性黑可的记你的计算机的活动内容,单击许阻止的内容④)Close Frames有何风险)?信息栏帮助Q回HomeBPageL Page 2正浏览器,选择“允许阻止内容。为了方便在高级设置里可以关闭这项安全警告。在IE选项一一高级一一安全区,找到允许活动内容在我的计算机上的文件中运行”,打上对勾点击应用”即可。详细设置位置可以见下图Internet选项常规1安全隐私内容连接程序高级设置()口启用集成 indows身份验证要重启动)使用ss2.0使用ssL3.0回活动内容在的计机的攻件中元一的活动内告在耸口允许运行或安装软件,即使签名无效口在安全和非安全模式之间转换时发出警告区重定向提交的表单时发出警告从地址栏中搜索搜时o不从地址栏中搜索显示结果,然后转到最柚近的站点只在主窗口中显示结果击还原默认设置0gL确定取消」应用如果使用的是谷歌浏览器,有一些交互效果可能体现不出来。需要安装一个 Axure RP For chrome演示扩展http://www.webppd.com/thread-2294-1-1.htmlr004把网格调整成5pX更有利于自动对齐axure的主编辑区有网格显示,可以辅助一些自动对齐的作用。把网络的间隔调整成5pX,更有利于内容的自动对齐。注意5px要手写输入,下拉选择里最小是10px。ce RP Pro5.6:授权予 IloveyouAxure查看①涯图①对象)来格()生成⑨共享(帮助(B自定义注解字段和视图(A)…管理页面注释①D管理变量(D活除所有注解重分配脚注号码(B重排所有连接线D网格对话框管理模块中增加的事件(5)式单位:像索网格问际标记模峡思显示屏幕网格标记图片映射区域(B用手写输入0x标记动态面板①D对齐到网格t1+t松G)关闭框图Ctrl+y祥式○直⊙交叉点入框DI设置⊙目○其它列表确定[取消:计::意框把编辑区的冈络调整成5px间隔,更有利于内容的自动对齐。L区r005认识一下 Axure的软件界面打开 Axure软件,照图先简单认识下 Axure的软件界面,无标是ApF56数权子1ym交件①①图对家粉①生惠(3共15帮动D工具栏L口e添加交互动作区正在编稱的页面,点这儿可关闭。自定义Descrption页面导航区添加页面上注度图·A如设置注样选项页面内容编阵区Target Rolea元件面板区和认带模块存放区事件事件晝整頁的文字注榉区真面入加、1自动保完虑r006页面导航区操作1.基本操作一试便知。站点地图中中段日HmePage 1Page 2Page 3基本操作一试便知2.重命名,直接按F2也可以重命名。合4中中应添加(A移动(M应删除①重命名(B动设计页面(E创建副本(cC图表类型(T生成流程图将路径放到脚贴板线框图给页面重命名技巧:选中页面直接按F2也可以重命名,F2是 Windows默认的重命名键。3.创建当前页或分支的副本。回deo- Axure RP Pro5.6:授权予 Iloveyou文件(P)编辑(E查看(y鱿框图()对象(表格〔T)生成站点地图Home区曾分9中中添加(A移动(M删除(D可以复制一份当前页内容重命名(B设计页面(E)创建副本〔c页面(P图表类型(T分支(E生成流程图将UR路径放到剪贴板可以复制一份当前整个分支页内容4.修改图表类型。de0- Axure RP Pro5.6:授权予 Iloveyou.xu文件①)编辑()查看(y)线框图()对象()表格(T生成(站点地图Home中中添加(A:移动(删除①D重命名(B设计页面(E∷:∷创建副本(c图表类型(T线框图生成流程图流程图(P将U路径放刭剪贴板修改类型之后,页面前的图标会有变化。一般在用于画流程图的页面中才修改页面的类型。5.把页面结构生成流程图。园Ao- Axure RPPr56:教权子Il9ym文件①E)线①D查看①)线相图①Y对象()表格生成G)共享①)帮助(D國气圆结点地图4中中之1g,poo ks加(6段班除①重命名(BHome设计贝面(g创本)agePage 2Page 1生成流程Page 2线相目Page 3可以把页面的结构生成流程图图片文本超接6.生成某个页面的URI地址。包de- Axure Pro5.6:授权千1 loveyouAxu文件(D)编辑①E)查看0D就框图(Y对象(Q)表格(T)生成()共享)帮期B四气呐世分移动nH: axure D idemo rp?pid=9336b0ae-1db6-481a-9a42-cf539949a37d像删除⑨重命名(B过设计页面(生成的以上地址可以在本机地址栏里打开,执行后是用 Axure打开对应页面进入编辑代态创津本g图表类型(T注意:整个地址中,任何位置出现中文,打开时将不能找到对应的页面。将师路径放到剪贴板就图此功能基本上没什么用,实际使用中极少用到。r0o7控件面板区一一组件库1. axure提供的默认组件,线框图和流程图。组件线框图所有库线框图流程图超链接Axure默认提供了最常的Web载入库控件,有线框图、流程图包建库(c)编辑库将按钮刷新库(R卸载库(DA表格输入框输入域还可以自己创建或载入库一些人制作和分享的组件库。2.组件库的扩展名为rpb,可以从网上下载获http://www.axure.com/widgetlibraries.aspx可以为你提供更多样式效果的组件。

pid中参数整定的matlab 代码 很好用