SSI整合开发详细实例，其中包括三个项目

灵敏度分析matlab代码编写，运筹学中的灵敏度分析的求解均可用此方法

改程序是用matlab编写的变步长LMS自适应滤波算法，并与其他的LMS算法做了比较

（1）用LCD1602显示时间和温度。（2）温度设定范围为：室温～90℃，最小区分度为 1℃，标定温度≤1℃。 （3）环境温度降低时温度控制的静态误差≤1℃。 （4）用1602液晶显示水的实际温度。 （5）采用适当的控制方法，当设定温度突变（由40℃提高到60℃）时，减小系统的调节时间和超调量。

1、最省钱路径查询2、最省时路径查询3、考虑等车时间最省时路径查询

本压缩包为一系列关于system verilog的书籍，system veirlog在IC设计验证上越来越引起行业的关注，在今后的验证中会更加广泛，对于有志于IC领域设计与验证的同学很有帮组。

MATLAB心电图自动诊断程序。围绕心电信号预处理、心电波形检侧与定位、心电特征提取与分析三个方面。研究MIT数据库中的心电信号，针对心电信号中存在的工频干扰、基线漂移、肌电干扰等各种噪声,设计出了高通、低通、带阻、平滑效果滤波器来对心电信号进行预处理，对处理后的信号采用连续小波变化进行特征点的定位及瞬时心率的计算，最后通过分析给出诊断结果。

【实例简介】第1章 绪论 1. 1 引言 1. 2 扩频通信的基本原理 1. 2. 1 理想通信系统的带宽和S／N的互换关系 1. 2. 2 潜在抗干扰理论 1. 3 扩频通信中的基本参数 1. 4 本书的结构 参考文献 第2章 伪噪声序列 2. 1 引言 2. 2 伪噪声序列的性质及其产生 2. 2. 1 伪噪声序列的性质 2. 2. 2 伪噪声序列的相关性 2. 2. 3 伪噪声序列的部分相关 2. 3 m序列 2. 3. 1 m序列的性质 2. 3. 2 m序列相关函数的波形及功率谱 2. 3. 3 产生指定延迟的m序列及m序列的保密性研究 2. 3. 4 m序列的构造 2. 4 Gold序列及其他伪噪声码序列 2. 4. 1 Gold序列 2. 4. 2 其他伪噪声序列 参考文献 第3章 锁相环原理 3. 1 引言 3. 2 锁相环基本理论 3. 2. 1 一些基本公式 3. 2. 2 环路等效噪声带宽 3. 2. 3 数字锁相环的基本理论 参考文献 第4章 数字下变频器 4. 1 引言 4. 2 扩频通信中ADC参数的选择 4. 2. 1 ADC量化效应 4. 2. 2 数的表示法及其在量化中的影响 4. 2. 3 量化bit数的性能分析 4. 2. 4 在DDC中ADC的选择原则 4. 3 DDC的有效实现结构 4. 3. 1 数字混频器原理 4. 3. 2 同相 I 和正交 Q 的DDC实现结构 4. 4 DDC的多速率采样处理 4. 4. 1 整数M倍抽取 4. 4. 2 CIC滤波器 4. 5 采用CORDIC算法实现DDC 4. 5. 1 CORDIC运算器原理 4. 5. 2 CORDIC的VLSI结构 参考文献 第5章 直接数字频率合成器 5. 1 引言 5. 2 DDFS原理及其性能分析 5. 2. 1 直接数字频率合成器的工作原理 5. 2. 2 DDFS的杂散来源及其分布特性 5. 2. 3 改善DDFS杂散输出频谱的几种方法 5. 2. 4 DDFS的VLSI结构 5. 3 基于Galois域的数字控制振荡器 NCO 5. 3. 1 数字控制振荡器的数学原理 5. 3. 2 Galois域NCO的VLSI结构 参考文献 第6章 数字抑制载波跟踪环 6. 1 引言 6. 2 几种经典的载波跟踪环 6. 2. 1 抑制载波跟踪环的结构形式 6. 2. 2 松尾环的QPSK解调 6. 2. 3 16QAM解调环 6. 2. 4 通用载波恢复环 6. 3 数字Costas环的设计 6. 3. 1 数字Costas环的功能部件及参数设计 6. 3. 2 数字Costas环的VLSI结构 参考文献 第7章 扩频码序列的捕获 7. 1 引言 7. 2 统计随机信号检测理论的简单回顾 7. 2. 1 Bayes和Neyman Pearon假设检验 7. 2. 2 在加性高斯白噪声下对无衰落信号的非相干接收 7. 2. 3 吸收式Mark. v链和锁定检测理论 7. 3 几种典型的PN码捕获算法 7. 3. 1 相干扩频通信的PN码捕获算法 7. 3. 2 非相干扩频通信的PN码并行捕获算法 7. 3. 3 减少剩余码相位偏移效应的PN码捕获算法 7. 4 数字非相干混合并行捕获的VLSI结构 7. 4. 1 非相干混合并行捕获算法 7. 4. 2 非相干混合并行捕获算法映射至VLSI结构 7. 5 PN码捕获系统的自适应门限算法 7. 5. 1 单个数据样本的门限计算 7. 5. 2 基于窗口计数器的自适应门限算法 7. 5. 3 利用瞬时标定功率的自适应门限算法 参考文献 第8章 数字延迟锁定跟踪环 8. 1 引言 8. 2 DLL基本原理 8. 2. 1 全时间非相干DLL跟踪 8. 2. 2 单△型抖动环 TDL 跟踪 8. 3 关于PN码跟踪环性能的采样和量化效应分析 8. 3. 1 非等量采样 8. 3. 2 码跟踪环 8. 3. 3 环路分析 8. 4 抗多径效应的PN码跟踪算法 8. 4. 1 算法的系统描述 8. 4. 2 优化滤波器的加权 8. 5 数字非相干双△△DLL跟踪算法及VLSI结构 8. 5. 1 非相干双△DLL跟踪算法描述 8. 5. 2 环路参数设计及部分单元部件的VLSI结构 8. 5. 3 数字式非相干双△DLL的VLSI结构 8. 6 窄相关DLL原理及性能 8. 6. 1 窄相关DLL原理 8. 6. 2 窄相关DLL的统计特性分析 8. 6. 3 多径误差分析

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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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