微波炉 Ding(声音).mp3

基于ssh2的简单登陆注册系统，很经典，适合初学者

方便快捷迅速，内容比较好，基于matlab的仿真，很好实用

pcm编码调制 matlab通信原理实验仿真 代码注释清楚 值得一看

digsilent是个很好用的电力系统的仿真软件，所以学习好这个软件对自己的学习和工作有很大的帮助。此文档就是大概的介绍digsilent这个软件，适合初学者SILENTDIgSILEnT软件PowerFactory软件发展历程1985年:第一套商业版分析软件开发成功1995年: DIySILENT10.31版软件正式发布1998F: DIgSILENT Power Factory 11.02000-f: DigSILENT PowcrFactory 12.02003-f: DIgSILENT Power Factory 13.02005年:推出 Station ware软件2008F: DIgSILENT Power Factory 14.0目前已经在一百多个囯家得到使用,已售出的软件超过4500套色三一电力科学研究院5www.digsilent.dehttp://www.diasilent.de/support/中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE3SILENTPowerFactory软件的特点丰富的元件库( Equipment Type library);包括详细的系统元件模型如架空线、电缆、变压器、SVC、电流源和电压源等等,以及控制器模型如发电机调压器、调遠器和PSS等等面向程序化过裎的编程语言DPL,能够实现多种静态仿真分析功能,如乜压稳定性、PV/QV敏感性分析等。面向连续运行过程的仿真语言DSL,用于实现暂态稳定性分析过程中系统元件的控制。含多种电力电子元件,如SVC、TCSC等,这些元件都可以利用DSL定义相应的控制模型。中国电力科学研究院PowerFactory软件的特点数据管理方式数据库和数据管理器:分级的面向对象的数据,该教据库以Project为单位对数据进行存储,包含计算分析所需要的电网元件信息、图形信息以及计算设置提供电力系统运行、规划方案信急管理功能:允许用户在电网基础信息的基础上进行某些数据的修改并分别进行保存,如设计不同的护建方案,分析系统不同的运行方式等等完全图形化的操作模式软件由 Data manager和( raphic图形窗口两个工作页面组成,用户可以直接在图形窗口绘制电网、录入和修改电网数据,也可以在 Data manager页面中进行数据的录入和修改中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTESILENTPowerFactory软件的特点虚拟表计技术的应用窗口的概念,用于显示通过DP或暂态分析过程中的各变量的归线和波形,用户可以根据自己的需要来定义变量。数据兼容性提供用于与SC∧D八/(S进行数据交换的数据交换语言DOIF可以通过Excl进行数据的输入和输出〉与PSSE/E和PSS/U等电力系统仿真软件的数据进行转换。中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTEPowerFactory软件的主要功能潮流计算描述复杂的单相和三相AC系统及各种交直流渑合系统。潮流求解过程提供了3种方法以供选择:经典的牛顿拉夫逊算法、牛顿一拉夫逊电流迭代法和线性方程法(直接将所有模型作线性化处聖)。提供变电站控制、网络控訇、变压器分接头调整控以及多和远程控制模式故障分析支持几乎所有的故障类型(包括复故障分析)。谐波分析可以模拟各种谐波电流源和电压源,并提供计及集肤效应和内在自感的与颇牽相关的元件模型。中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE5SILENTPowerFactory软件的主要功能稳定性分析能够实现机电暂态和电磁暂态的仿真汁算,能够仿真电力系统几乎所有类型的故障,仿真分析的结果能够通过虚拟表计来绘制成曲线图可靠性分析将系统充裕性和安全性进行了综合考虑,主要包括三个方面预想事故分祈、发电可靠性佔计和网络可靠性估计。保护它包含了许多额外的原件如CT、ⅥT、继它器等。所有这些保护元件在静态、晢态情况下都能够使用。在所有可能的仿真模式如潮流分析、故障分析、机电暂态和电磁暂态等情况下这些保护元件都能够响应。中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTEPowerFactory软件的主要功能最优潮流最优湖流计算是对基本潮流计算的有效补充。最优潮流计算主要采用内点法,并提供了多种约束条件和控制手段,其考虑的目标函数主要有最小网损、最小燃料赀用、最大利润及最小区域交涣潮流配网优化能够实现电容器选址优化、解环点优化以及电缆补强优化三种优化功能。低压网络分析根据连接到某一线路上的用户数量来定义负荷、考虑负荷的多样性、在进行潮流计算时考虑负荷多样性并计算电压最大跌落值和最大支路流、自动进行电缆补强、电压跌落和电缆负载卒分祈等。中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE6SILENTPowerFactory软件划分配网包二业用户包输电网包风电应标准版专业版标准版专业版标准版专业版标准包用包剛流计算女障分析最优潮流保护「诸波机电暂态电磁暂态低压网终分析配网优化靠性分析中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTEPowerFactory在风电领域的独特性风电机组模型基于双馈感应发电机的变速风机基于变频器控制同步发电机(CDSG)的变速风机基于普通感应发电机的恒速风机·风电机组控制风电机组叶片机械特性模拟桨距角控制发电机保护和转子短路保护器(Crow-bar)建模变频器控制建模中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE7Power Factor y软件界面介绍中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE基本概念·用户在 PowerFactory中所进行的所有数据录入、设置和修改信息都自动存储在 Database中(即安装目录下的DB文件),用户无需自定义存储路径。所搭建网络能够以图形的形式显示录入数据的方法在图形用户界面录在 data manager中录入中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE8SILENTDAtabase的主要结构Global Library:软件内置的元件Library库,含电力系统相关的所有标准元件类型,如发电机、线路、变压器以及相关控制器的元件类型等等。只有管理员能够进行修改。ProjectLocal Library:User3在当前Library的 Project中自定义的元件库,User3能够进行修改。中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTEa1x的m③6“s“a“AaMPowerFactory Database连de1F他mao0612106k计ate FolderET Induct006-12!o82Am时世EOr Driven Mac黑 tor Draventro st adand Iode10-30 10: LAbatnintrateranrfonmeEs. rm EtatienFare软件内置元件库Castable r分 tea ttrslielm卿bxe;模型及算例a I2E Exuele Std 192-19312553 metre basebar自定义用户名9SILENTroject的概念Project一项目包含项目分析计算所需的所有数据◆电网数据和网络拓扑结构负荷数据、发电厂相关数据系统运行方式◆仿真事件和语句仿真分析结果中国电力科学研究院CHINA ELECTRIC POWER RESEARCH INSTITUTE功能图标区室是画=x图山×g团w出回的A国日工已激活的 Project区哇白60Data Manager由团鱼8绘图区数据管理窗①①围厂多t()=A+·Mue4M凸结果输出窗10

MATLAB。可用地震波偏移成像，非常好用，数据处理

基于matlab的时延估计算法的互相关函数仿真源代码

是matlab源码，利用bp网络实现0～9数字识别系统，友好的系统界面，包括训练样本和含噪声的数字图片

基本思想：首先任意选取K个聚类中心，按最小距离原则将各模式分配到K类的某一类；不断计算聚类中心和调整各模式的类别，最终使各模式到其判属类别中心的距离平方之和最小。

基于具有抗差性的验后单位权中误差的抗差最小二乘Matlab代码

使用CC2591作为CC2530的功放, CC2591 PAThe absolute maximum ratings and operating conditions listed in the CC2530 datasheet [1]and the CC2591 datasheet [4] must be followed at all times. Stress exceeding one or more ofthese limiting values may cause permanent damage to any of the devicesNote that these characteristics are only valid when using the recommended register settingspresented in Section 4.6 and in Chapter 8, and the CC2530 - EM reference designOperating Frequency240524835MHzOperating Supply Voltage2036VOperating Temperature-40CTC=25C, VDD=3.0V, f=2440 MHz if nothing else is stated. All parameters are measuredon the CC2530-Cc2591EM reference design [11] with a 50 Q2 loadReceive CurrentWait for sync, -90 dBm input levelWait for sync, -50 dBm input level24mATXPOWER OXE5166mATXPOWER OXD5149mATXPOWER OXC5138mATXPOWER OXB5127mATransmit currentTXPOWER OXA5115ATXPOWER = 0X95100mATXPOWER = 0X8594ATXPOWE=0×75mATXPOWE=0×6579APower Down Current PM2UAISTRUMENTSPage 3 of 19SWRA308ATC=25C, Vdd=3.0V, f= 2440 MHz if nothing else is stated. All parameters are measuredon the CC2530-CC2591 EM reference design with a 50 Q2 loadReceive Sensitivity HGM 1 %PER, IEEE 802. 15.4[6] requires -85 dBm-988dBmReceive Sensitivity LGM1 PER, IEEE 802. 15.4 [6] requires -85 dBm-90.4dBmSaturationlEEE 802.15. 4 [6] requires-20 dBm10dBmWanted signal 3 db above the sensitivity levelIEEE 802.15.4 modulated interferer at ieee 802.15.4 channelsInterferer Rejection+5 MHz from wanted signal, IEEE 802. 15. 4 [6] requires 0 dBdB+10 MHz from wanted signal, IEEE 802. 15. 4 [6] requires 30 dB49dB+20 MHz from wanted signal wanted signal at- 82d BmdBdue to in the external lna and the offset in cc2530 the rssi readouts from cc2530CC2591 is different from rssi offset values for a standalone cc2530 design the offsetvalues are shown in table 4.4High Gain Mode79LoW Gain mode67Real rssi Register value-Rssl offsetISTRUMENTSPage 4 of 19SWRA308ATc=25C, Vdd=3.0V, f=2440 MHz if nothing else is stated All parameters are measuredon the CC2530-CC2591 EM reference design with a 50 Q2 load Radiated measurements aredone with the kit antennaRadiated Emissionwith TXPOWer Oxe5Conducted 2. RF (FCC restricted band)-462|dBmConducted 3. RF(FCC restricted band46.5 dBmComplies withFCC 15.247. SeeChapter 7 for moredetails about regulatoryRadiated 2.RF(FCC restricted band)42.2dBmrequirements andcomplianceIEEE 802.15.4[6]requires max.35%%Measured as defined by IEEE 802.15. 4 6TXPOWER OxE5. f= EEE 802.15. 4 channels13TXPOWER= OXD5. f= EEE 802.15.4 channelsTXPOWER= OXC5 f= EEE 802.15.4 channelsMax error∨ ectorTXPOWER OxB5 f= IEEE 802.15. 4 channelsMagnitude(EVM)TXPOWER OxA5. f= IEEE 802.15.4 channelsTXPOWER 0X95. f= IEEE 802. 15.4 channels643333%%%%%%%TXPOWER= 0x85. f= iEEE 802. 15.4 channelsTXPOWER =0x75 f= IEEE 802. 15.4 channels%TXPOWER= 065. f= iEEE 802. 15.4 channelsThe RF output power of the CC2530- CC2591 EM is controlled by the 7-bit value in theCC2530 TXPOWER register. Table 4.6 shows the typical output power and currentconsumption for the recommended power settings The results are given for Tc= 25 C, Vdd3.0V and f= 2440 MHz, and are measured on the cC2530-CC2591 EM reference designwith a 50 Q2 load. For recommendations for the remaining CC2530 registers, see Chapter 8 oruse the settings given by SmartRF StudioOXE520166OxD519149OxC18138OxB517127OxA5161150x95141000x8513940X75860x651079Note that the recommended power settings given in Table 4.6 are a subset of all the possibleTXPOWER register settings. However, using other settings than those recommended mightINSTRUMENTSPage 5 of 19SWRA308Aresult in suboptimal performance in areas like current consumption, EVM, and spuriousemissionTc=25C, Vdd=3.0V, f=2440 MHz if nothing else is stated All parameters are measuredon the CC2530-CC2591EM reference design with a 50 32 load2221-2V201918171611121314151617181920212223242526251510OxE5OxC5OxA50X850x65540-30-20-1001020304050607080ISTRUMENTSPage 6 of 19SWRA308A98Avg 3.6VAva 3vAvg 2V110111213141516171819202122232425261023.6V-1062V-110-40-30-20-100102030405060708070604020-Wanted signal at:-82 dBm10ISTRUMENTSPage 7 of 19SWRA308ACC2530-CC2591EM High Gain ModeC C2530-CC2591EM Low Gain Mode- CC2530EM40000-100110100908070-60-50-40-30-20-100The IEEE standard 802.15. 4 [8] requires the transmitted spectral power to be less than thelimits specified in table 4.7If-fc>3.5 MHz-20 dB-30 dBmThe results below are given for Tc=25 C, Vdd=3.0V and f= 2440 MHz, and are measuredon the CC2530-CC259 1EM reference design with a 50 Q loadIEEE absoluteChannel 182432.52435243752442524452447.5ISTRUMENTSPage 8 of 19SWRA308AOnly a few external components are required for the CC2530-CC2591 reference design. Atypical application circuit is shown below in Figure 5.1. Note that the application circuit figuredoes not show how the board layout should be done. The board layout will greatly influencethe RF performance of the CC2530-CC2591EM. TI provides a compact CC2530CC2591 EM reference design that it is highly recommended to follow. The layout, stack-upand schematic for the CC2591 need to be copied exactly to obtain good performance. Notethat the reference design also includes bill of materials with manufacturers and part numbersL102 L10=TI INF inductorVDD13cc2530LA 1RF PANTCC2591 RF NFNPA EN(P1 1)i工工I NA FNP:1HGM ENPO 7)T:1Proper power supply decoupling must be used for optimum performance. In Figure 5.1, onlythe decoupling components for the CC2591 are shown. This is because, in addition todecoupling, the parallel capacitors C11, C101, and C131 together with, L101, L102, TL11TL101 and TL131 also work as RF loads. These therefore ensure the optimal performancefrom the CC2591. C161 decouples the AvDD blAs power.The placement and size of the decoupling components, the power supply filtering and thePCB transmission lines are very important to achieve the best performance Details about theimportance of copying the CC2530-CC2591EM reference design exactly and potentialconsequences of changes are explained in chapter 6The RF input/output of CC2530 is high impedance and differential. The CC2591 includes abalun and a matching network in addition to the PA, LNa and RF switches which makes theinterface to the CC2530 seamless. Only a few components between the CC2530 andCC2591 necessary for RF matching For situation with extreme mismatch(VSWR 6: 1 till 12: 1out-of-band as shown in Figure 6.2) it is recommended to include all the components asshown in Figure 5.1ISTRUMENTSPage 9 of 19SWRA308ANote that the PCB transmission lines that connect the two devices also are part of the RFmatching. It is therefore important to copy the distance between the devices, the transmissionlines and the stack-up of the PCB according to the reference design to ensure optimumperformanceThe network between the CC2591 and the antenna(L111, C112, C111 C113 and L112matches the CC2591 to a 50 2 load and provides filtering to pass regulatory demands. C111also works as a dc-blockR151 is a bias resistor the bias resistor is used to set an accurate bias current for internaluse in the cc2591The TI reference design contains two antenna options. As default, the Sma connector isconnected to the output of CC2591 through a 0 Q2 resistor. This resistor can be soldered offand rotated 90 clockwise in order to connect to the PCB antenna, which is a planar invertedF antenna(PIFA). Note that all testing and characterization has been done using the SMAconnector. The PCB antenna has only been functionally tested by establishing a link betweentwo EMs. Please refer to the antenna selection guide [6] and the Inverted F antenna designnote [7 for further details on the antenna solutionsISTRUMENTSPage 10 of 19SWRA308A