-
椭球面上任意梯形面积计算含代码
(1)图幅理论面积与图斑椭球面积计算(2)图幅理论面积计算公式(3)椭球面上任意梯形面积计算公式(4)高斯投影反解变换
- 2020-06-27下载
- 积分:1
-
纯电动汽车整车控制器完整解决方案
一份关于纯电动汽车整车控制器解决方案的文档,希望对大家有用图概述■主要功能■整车能量协调控制DC/DCTPMsChargeLDM■整车附件控制BMSBCU整车故障诊断与处理HV/BMS CANFunction CANInverterMotor EnableMotor enable■车辆状态监视与控制TractionGeneratorDrive CANMotor■整车自定义功能VCUEMSHCU)K…”ABS/ESP■必要性System■协调各部件控制器Inputs优化车辆性能,提高驾驶舒适性■减小动力系统变更、优化的难度及工作量■缩短新车型开发的周期助力.汽车电子概述驾驶员方向盘油门制动选档器VDN/R总调度模块信号上信输下作能附充故号电模件电障输处管式管控管诊出入理管制理断处VCU驱↓使能信号状态反馈驱动制动动电机转矩控制N路面阻力A国助力.汽车电子概述■VcU控制器特点■整车厂最容易也是必须掌握的核心技术之■车载能源系统■驱动系统■控制系统■通过√CU能掌握、控制整车的网络架构、定义各个子系统的功能■各整车厂定制开发,但可以规划统一平台■开发周期短,开发难度可控■工作环境相对较好,系统可靠性较高www.hirain.com■可兼容PHEV和EV车型助力.汽车电子图目录VCU功能概述VCU系统开发恒润现有的∨CU开发平台VCU相关的工具和服务总结及经验介绍助力.汽车电子汽车电子产品开发流程概念提出/批准隹项目批准原型试生产发布策划产品设计开发过程设计与开发L产品及过程确认生产项目准备〉S0阶段s1阶段s2阶段s3阶段)量产S0阶段(Demo)S1阶段(DEV)s2阶段(DV)S3阶段(PV)●D/ PFMEA● DEMEA●模块冻结●模块调整●方案设计●s2样件设计● PEMEA●物料选择和认可●s0样件设计●s样件加工)●试验持0S样件设计●s0样件试制●S2样件测试生产支持°●s1样件加工●s2样件试验S样件测试集成测试助力.汽车电子汽车电子产品开发流程系统工程产品研发管理产品需求开发产品确认项目计划方案设计集成验证确认一需求产品需求监控与控制跟踪项目进展信息设计二需求设计实现样件试制验证二需求跟踪跟踪风险管理实现一需求跟踪求管理需求跟踪矩阵需求变更控制)管理文件记录产品文件和记录测量数据支持配置管理过程及产品质量保证N测量分析助力.汽车电子汽车电子产品开发流程一系统系统需求系统确认系统功能系统测试系统分解分系统集成■■■■■■■■■■■■■■■■■■■■■■■■总体需求分析单系统确认产品组件结构分解单系统集成功能模块设计模块测试组件组件实现组件助力.汽车电子汽车电子产品开发流程—策略x00 AOED AZ 2003功能设计标定测试与验证快速控制原型硬件在回路仿真目标代码生成助力.汽车电子
- 2020-12-05下载
- 积分:1
-
FAM和SSCA算法的matlab源程序-detection and identification of signal
FAM和SSCA算法的matlab源程序-detection and identification of signalFAM和SSCA算法的matlab源程序-detection and identification of signalDISCLAIMER NOTICEMTHIS DOCUMENT IS BESTQUALITY AVAILABLE. THECOPY FURNISHED TO DTICCONTAINED A SIGNIFICANTNUMBER OF PAGES WHICH DONOT REPRODUCE LEGIBLY.ilApproved for public release; distribution is unlimitedDETECTION AND IDENTIFICATION OF CYCLOSTATIONARY SIGNALSEvandro luiz da costaLieutenant Commander, brazilian NavyB.S., Instituto Militar de Engenharia, 1980Submitted in partial fulfillmentof the requirements for the degree ofMASTER OF SCIENCE IN ELECTRICAL ENGINEERINGANDMASTER OF SCIENCE IN ENGINEERING ACOUSTICSfrom theNAVAL POSTGRADUATE SCHOOLMarch 1996Author.Evandrodk da costaapproved byRQ求Ralph Hippenstiel, Thesis Co-AdvisorRoberto Cristi, Thesis Ca-AdvisoiHerschel. Loomis, Jr, hairmanDepartment of Electrical and Computer EngineeringArthony A. Atchley / ChairmanEngineering Acoustics Academic CommitteeABSTRACTPropeller noise can be modeled as an amplitude modulated(AM) signalCyclic Spectral Analysis has been used successfully to detect the presence ofanalog and digitally modulated signals in communication systems. It can also identithe type of modulation. Programs for Signal Processing based on compiledlanguages such as FORTRAN or C are not user friendly, and MATLAB basedprograms have become the de facto language and tools for signal processingengineers worldwideThis thesis describes the implementation in mAtlab of two fast methods ofcomputing the Spectral Correlation Density(SCD)Function estimate, the FFTAccumulation Method (FAM)and the Strip Spectral Correlation Algorithm( SSCA),toperform Cyclic Analysis. Both methods are based on the Fast Fourier transformFFT)algorithm. The results are presented and areas of possible enhancement forpropeller noise detection and identification are discussedTABLE OF CONTENTSINTRODUCTIONA MOTIVATION,P,中“····*s···:···:B BACKGROUNDC THESIS GOALSIL NOISE IN THE OCEAN··+A TYPES OF UNDERWATER NOISE25561. Ambient Noise番申2. Self noise3. Radiated noise8B RADIATED NOISE FROM SHIPS, SUBMARINES AND TORPEDOES.......8C PROPELLER NOISE10lI CYCLOSTATIONARY PROCESSING15A CYCLOSTATIONARIT15B THE CYCLIC AUTOCORRELATION FUNCTION (ACF)17C THE SPECTRAL CORRELATION DENSITY FUNCTION (SCD)18N. ESTIMATION OF THE SPECTRAL CORRELATION DENSITY FUNCTION23A FFT ACCUMULATION METHOD(FAM)25B STRIP SPECTRAL CORRELATION ALGORITHM(SSCA■D28V. EXPERIMENTAL RESULTSA. ANALOG-MODULATED SIGNALS311. Amplitude Modulated(AM)Signal===2-312. Pulse-Amplitude Modulated(PAM) Signal58B DIGITAL-MODULATED SIGNALS1. Amplitude Shift Keying(ASK) Signal中中非昏号即即号自唱即自曲音非带卡.最662. Binary-Phase Shift Keying(BPSK) Signal6了VI CONCLUSIONS81A SUMMARY81B SUGGESTIONS82APPENDIX A-CALCULATION OF THE SCD FUNCTION OF AN AMPLITUDE-MODULATED SIGNAL83APPENDIX B-FUNCTION AUTOFAM95APPENDIX C-FUNCTION AUTOSSCA99APPENDIXD-FUNCTION CROSSFAM103APPENDIX E-FUNCTION CROSSSSCA109APPENDIX F-PLOTTING ROUTINES113LIST OF REFERENCES115INITIAL DISTRIBUTION LIST看音117INTRODUCTIONA. MOTIVATIONPropeller related acoustic signatures typically exhibit modulationcharacteristics. These modulation characteristics originate from the cavitationprocess that takes place in the water due to the cyclic movement of the propellerThe cavitation process is basically the collapse of air and vapor bubblesdue to variations in the static pressure. These variations in static pressure are aconsequence of the passage of the propeller blades through the water. Thismovement, cyclic in nature, causes amplitude modulation in the static pressureand as a consequence an amplitude-modulated(AM) signal can be detected in areceiverCyclostationary processing techniques have been used to detect andlentify analog and digital communication signals very successfully. Thesetechniques have the advantage of using a more realistic model for the signalthan the stationary model used in most of the more conventional signalprocessing techniquesB BACKGROUNDThe basic elements of cyclic spectral analysis are the time-variant cyclicperiodogram and the time-variant cyclic correlogram. These two functions form aFourier transform pair. This fact is known as the cyclic Wiener relation or thecyclic Wiener-Khinchin relation [Ref. 1: p. 49.1
- 2020-12-05下载
- 积分:1
-
LMS,自适应陷波器,自适应RLS自适应算法等5种算法的MATLAB程序
利用matlab求线性调频信号的特征,lms算法求滤波后的各种特征参数
- 2020-06-26下载
- 积分:1
-
microwave office中文软件
microwave office中文软件
- 2020-11-01下载
- 积分:1
-
MFC编写的心电采集程序
MFC编的心电采集程序,里面的动态显示心率曲线等可作为画曲线图。本程序仅用研究用途,勿用于商业。
- 2020-11-30下载
- 积分:1
-
关联维数MATLAB程序.m
【实例简介】计算关联维数的MATLAB程序,文件名是关联维数的首字母,直接可以用。傻瓜式的。花了1个星期的心血啊。
- 2021-11-20 00:32:12下载
- 积分:1
-
RRT算法用于路径规划.zip
【实例简介】适合用于路径规划问题,机器人路径规划或者无人机二维平面航迹规划等问题。
- 2021-12-07 00:44:59下载
- 积分:1
-
matlab自相关函数提取语音信号基频
Use the autocorrelation function on segments of the signal (windowsize: 100ms) and compute the fundamental frequency. Use a max_time_lag of 100ms in the autocorrelation function and a window shift of 25ms. Create a fundamental frequency vector and plot your pitch contour.
- 2020-11-02下载
- 积分:1
-
基于matlab的指纹识别
基于matlab的指纹识别,里面含有写好的matlab代码,还有一篇借鉴的毕业论文设计,老实说,里面的matlab程序只是进行了指纹的特征提取这一步,并没有真正的完整实现整个识别过程,代码挺简单的,适合新手,老鸟绕道
- 2020-11-02下载
- 积分:1