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matlab切比雪夫多项式
用matlab实现了切比雪夫多项式的计算
- 2020-11-30下载
- 积分：1
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optisystem和matlab协同仿真
optisystem和matlab协同仿真的一篇文章，以光幅度调制器为例，用matlab构建后，放到optisystem系统中进行仿真，文中包含构建光幅度调制器的m文件代码。104计算机与现代化2010年第12期NoiseNumber= eng h( Inpu ortl. Nose);193Hz192%TTH Zif( Samp edvm berGb it/sfor i= 1:len umberOptsysten%OutputPortl. Sam pled( i). Signal( l, :)=Am plitude odu brstystemtoIS am pled( In pu Portl Sam pled( i). Sgnal( 1,:), real( InputM atlabPort2 Sam pled Signal))%Po hr ization umber= sie( lnputPortl Samp ed( i). Snal 1)OptS ystem M atlaltrif( PohrizationNumber== 2)Ou putPortl. Sam pled( i)ystemSignal(2 :)=Am plitudeM odulato IS amp led( Inpu Portl Samp edOptsystem(i. Signal( 2: ) rear InputPort2 Sam pled S ignal))Md % oif( Param eter izedNumber>0)[1]GovindPagrawalOverview[Eb/oL].http://www.optifor i= 1: Paran eterizedN umber OuputPortl P aran eterizedwave com/produc ts/sys tom_ove Iv iow. htm I 20 10-06-01Pow er= Amp lind eM odu latorP aram eter ize( In pu tPortL Param eter[2 Opt ave Corpo ra tion O ptSystem 7 Q getting S tarted andized Power real( Inpu tPor2 Samp ed Signal));Tutori b- Signal represen tation[Z]. 2008[3] Optw ave Corporat on O pt by stem 7.0 Hep-M atlab Camd 90ponent[Z]. 200&if(no ieN umber> 0)[4]#八不”卜氵厶for i= I: noiseNumber術部. OptSysten E m atlab o)x?氵xb氵3冫事OutputPortl. Noise Pa er= Am plitude odulato Nose( In-Leb/Ol].httpr//www.cybemetcajp/optwave/optipu tPortl. noise Pow er reaI InputPort2 Sam pled S ignal))Sys tem /s tor es/Examp k 3 pdf 2010-08-31[D]200912-18AmplitudeM odu latorS am p led Amp litud eM odu latorRFIDParam eterized Amp litud em odu lator o ise 3[J20097(6)497-500M[7 M a jinx n Y u Jian un Y u Chong iy et a.I Infuence of theOptrmodu latin index ofm achr zehnder modu a tor on r of linkystem 7.0M atlahwith a sK m il lim ete rw av e sina l[J. O ptics& lase rTechrOptrn200941(1):11-16System314[8 He Jian, Zhu Xue un M achr Zehnder type annea led protonexch ange w avegu ide and cop hnarw avegu ie m adulation electrode Linbo 3 tens ity m odulator[ J]. Sem iconduc brOptcalPho ton ics and Techno bgy 2007, 13(1):6975.Optical spectrum Analyzer. 1Ded dck on Ceste te open certes, Mowe obed wth Msise DragAudo Set[9[小,200835(8):11851190[10Star 1.5030Je.2010Q10(3):15-17Amphid[11 Opti ave Corporat in O pt Sys tm U ser s Reference[z]. 2008T Sumac anoeMin[104.7192009厂 Heackubon Bandwith(4):31932215日155日1“日15日153日[13(2)[Mpower K power X A ROwDY/2009M atlab52006o1994-2011ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net
- 2020-12-05下载
- 积分：1
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数据库与灾难恢复
oracle、SQLserver、sybase、informix等各类数据存储备份与灾难恢复。
- 2020-11-29下载
- 积分：1
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Matlab求解偏微分方程工具箱使用举例.pdf
介绍利用MATLAB的PDE Tools求解偏微分方程的应用实例，有参考价值！
- 2020-11-27下载
- 积分：1
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javaweb邮件管理系统
该邮件收发管理系统基于Java Web开发技术主要实现了用户的注册登录、个人信息管理、收发邮件、个人邮箱管理（收件箱、发件箱、草稿箱管理）、通讯录管理、文件上传与下载等功能，使用springmvc框架以及jsp+servlet混合实现，内含sql文件（mysql）以及文档。
- 2020-12-06下载
- 积分：1
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自学VC++2010实例【004】；用ADO方法在ACCESS2010数据库中增加、删除和修改记录
级别：入门级。在VC++2010用ADO方法在ACCESS2010数据库中增加、删除和修改记录。【要在机器中安装Microsoft.ACE.OLEDB.12.0引擎，网上有下载的】。本实例参照清华大学出版社的《Visual C++范例开发大全》，ISBN: 978-7-302-22624-6，作者: 陈国建. 等编著，版次: 2010年7月第1版。本实例参照如下的章节改编出来的：11.1 数据库操作访问技术实例 402实例253 使用DAO建立Access数据库文件 402实例254 使用ADOX建立Access数据库文件 404实例255 使用ADO添加数据库记录 407实例
- 2020-07-04下载
- 积分：1
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FSME有限状态机生成器
有限状态机是一种用来进行对象行为建模的工具, FSME这个工具可以让你只需要画画状态图，就能为你生成对应的有限状态机的框架C++代码，提高你的开发效率。压缩包里是程序的源代码和相关文档。
- 2021-05-06下载
- 积分：1
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Linux枕边书
Linux枕边书，主要是讲LINUX的前世今生、应用以及架构分析的，最后顺带介绍了一下Gentoo的生平事迹致谢Eric Steven Raymond编写的 < The Art of Unia Programming i让我意识到了UNIX哲学是如此的重要。我对Iinu知识的进步都得益于阅读此书后明白」UNIX的哲学。书中为介绍UNIX的哲学而摘录的名言警句我也同样应用到了我的书中。在此对 Eric Steven Raymond大师表示感谢为了编写本书,查阅了大量相关资料。再此对这些资料的提供者表小感谢。它们是维基百科(英文),维基百科(中文),IEEE标准文档,ISO标准文档,RFC标准文档。对 Gentoo的viki表示感谢,没有它我就不可能学会 Gentoo,更不用说编写本身的过程中我再三查阅 Gentoo的wik确保自己记忆沒有出错。编写“Shel基础”这一小节参考了GNU官方网站的BASH文档。编写网终基础这一章节的时候,参考了《通信基础》,和《TCP/IP详解》三卷书的内容。目录致谢3第0章序1301为什么又写本书140.2UNIX的史前文明0.3UNIX的故事180.3.1UNX混乱和分裂0.32统一的UNX和 POSIX标准0.4GNU的故事210.4.1认识自由的含义0.4.2为了自由2204.3以 Copyright保护 Copyleft23第1章UNIX哲学251.1一切都是文件2512鼓励程序间协作261.3一个程序只做一件事情并把它做好281.4使用文木流,因为这个是通用的协议291.5懒惰原贝311.6UNIX和非UNIX32第2章黑客和 Linux3521从UNX到 Linux362.2 Linux诞生3622.1被UNIX忽略的PC222386BSD、Minⅸ催生 Linux.392.2.3以GPL开源39目录第3章初识 Linux4130.4使用 Linux内核的操作系统——发行版423.1发行版的意义1232包管理和软件仓库4332.1包管理43322软件仓厍45第4章安装 Linux4941安装准备5042shel快速入门534.3引导管理器574.4init系统选择605分区规划6445.1分区基础知识64452为磁盘分区674.5.3文件系统结构标准(FHS)45.4文件系统选择7246开始安装4.6.1正式开始安装过程7346.2 emerge用法754.6.3配置make.conf4.6.4内核编译4.6.5系统初步配置一重启前配置4.6.6安装基础系统9946.7配置引导程序10247重启后安装103第5章 Linux的日常1055.1某日常的man-pages1055.2UNIX权限基础1075.2.1用户和组1075.22文件操作权限1095.3 Shell常应用1105.3.1bash名称的道听途说1105.32shel字符串展开5.3.3shel变量和环境变量112目录53.4shel和文件管理1135.3.5管道和重定向1155.3.6bash是门编程语言1164文件编辑器1215.4.1编辑器之神vim.,1215.42神之编辑器 emacs..1245.5系统管理基础1255.5.1进程管理12555.2系统服务管理125第6章软件管理1276.1软件的分发.1276.2软件的编译1276.2.1 Makefile1286.2.2 autotools..1296.2.3 cmake1306.3发行版的包管理..1316.3.1软件仓库1316.3.2 portage/Emerge1326.33有关SLOT,Ⅴ irtual,分支,体系结构和 Profile.1356.34当 Portage抱怨的时候1366.4理解 portage142641文件和目录142642附加工具1446.5使用 overlay扩展 portage145第7章图形界面1477.1图形、字体和窗口1477.2X窗口系统.1507.2.1窗口管理1527.22混合窗冂管理器154723Open(江L和Mea.15772.4内核模式设置(KMS)1597.3安装基础Ⅹ环境l607.4桌面环境1637.4.1KDE.164目录7.4.2 GNOME-Shell17075办公和打印1727.5.1 LibreOffice1727.52使用CUPS打印文档1727.6声音的那些事1727.6.1声音的数字编码1737.6.2ALSA高级 Linux声音架构174763 Pulseaudio优秀的声音服务器1767.64对 PC HiFi的一些建议..1777.7 Wayland178771X的局限和扩展1797.72渲染库和静态链接18177.3混合18377.4窗口管理器做为 Display server怎么样184第8章网终基础1878.1层次协议网络.18781.1网络接口层189812网络层:IP协议195813传输层:TCP和UDP9881.4应用层.2018.2网络地址配置205821 Linux网络设备命名20582.2图形环境下的工具206823命令行配置工具2088.24网络自动配置和DHCP2088.2.5 ifconfig20883网络攻击和防火墙209831网络攻击类型和检测2098.3,2 iptables防火墙209第9章文件系统2119.1磁盘文件系统2119.1.1硬盘结构,21291.2非日志文件系统21391.3日志文件系统214目录9.2虚拟文件系统.....215921内核信息窗口/proc和/sys215922/dv设备文件系统和udev.21592.3虚拟内存盘 tmpfs.2179.3网络文件系统2179.3.1NFS2179.32 Windows网上邻居:CIFS2199.4其他的文件系统,,,222941 Lived的最爱—压缩文件系统 squashfs222942为Fash芯片设计的文件系统..223第10章架设服务器22510.1搭建HTTP服务器2251011安装 Apache22510.12添加开机自启动 Apache2261013php支持.22610.2数据库..22710.3文件共享—FTP和 Samba..22810.3.1F①P,...22810.3.2 Samba22910.4共享打印机23010.41使用CUPS共亨打印机23010.42使用 Samba共享打印机..232第11章压榨机器的性能23511.1编泽优化.23711.1.1编译期优化237111.2链接时优化(LTO, Link Time Optimization)240111.3PGO241附录AFAQ243什么是 LiveCD?.2如何使用 LiveCd。2433UEFI和BIOS是什么?2434什么是API?。.2435 Shell是什么?2410目录6什么是进程和线程?244什么是内存分页?2448如何不重新登录切换到roo帐号?2449对称多处理器24410 Initramfs是什么24411抢占式多任务24512内核参数24613交换分区和交换文件24614汉化man手册24615符号链接24616内存映射 IO-MMIC24717内核枧频模式设置-KMS24818CISC和RISC24819 RPC24820INI文件格式..248附录Bman手册251B.1第一部分:UNX用户于册..251B. 1.1 test2251B.1.2 test251B 1.3 test3251B.2第二部分:系统调用251B.3第三部分:库函数251B.4第四部分:设备和特殊文件251B 4.1 null. zero251附录C名称缩写252附录D图片索引255附录 E Gentoo的前身今世259Gentoo的前世今生,第一部259E.1 Gentoo linux发行版的诞生259E.11我和inux.259E.1.2 Linux的潜能260E.1.3 Linux的人文艺术260
- 2020-12-10下载
- 积分：1
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linux0.11内核源码
这个是0.11版Linux内核源码，其中每一行都含有中文注释，能够帮且初学者快速入门Linux内核
- 2020-12-11下载
- 积分：1
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使用CC2591作为CC2530的功放
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
- 2020-11-30下载
- 积分：1
