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基于MATLAB的车牌识别程序
基于MATLAB的车牌识别程序, 还可以直接使用摄像头获取图像
- 2020-12-05下载
- 积分：1
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思源黑体简中全套TTF格式
【实例简介】因为cocos只能用TTF，所以自己作的思源黑体简中全套TTF格式。一共7个字体，已在COCOS中测试通过。亲测可用。懂的来。
- 2021-11-14 00:43:38下载
- 积分：1
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Linux软件工程师(C语言)实用教程_实例源码.
Linux软件工程师(C语言)实用教程_实例源码课件加源码，很好的入门材料。
- 2020-11-06下载
- 积分：1
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RTCM3.3协议全
全新RTCM3.3协议完整版RTCM STANDARD 10403.3DIFFERENTIAL GNSS(GLOBAL NAVIGATION SATELLITE SYSTEMS)SERVICES – VERSION 3DEVELOPED BYRTCM SPECIAL COMMITTEE NO. 104OCTOBER 7, 2016COPYRIGHT©2016 RTCMRadio Technical Commission for Maritime Services1611 N. Kent St., Suite 605Arlington, Virginia 22209-214RTCM Paper 141-2016-SC104-STD000ocRTCMco00c30RTCM 10403. 3, Differential GNSS Global Navigation Satellite Systems)Services- Version 3, October 7, 2016This standard (referred to as version 3 has been developed by rtCm special Committee 104 as a moreefficient alternative to the standards entitled rtcm recommended standards for diffe rentialRecommended Standards for Differential gNss Global Navigation Satellite Systems Service, Version 2.x(Current version is 2. 3, now designated as RTCM 10402. 3. Service providers and vendors represented onthe SC104 Committee wanted a new standard that would be more efficient, easy to use, and more easilyadaptable to new situations. The main complaint was that the version 2. x parity scheme, which useswords with 24 bits of data followed by 6 bits of parity, was wasteful of bandwidth. Another complaint wasthat the parity was not independent from word to word. Still another was that even with so many bitsdevoted to parity the actual integrity of the message was not as high as it should be. Plus, 30-bit wordsare awkward to handle. the new standard version 3 is intended to correct these weaknessesUnlike Version 2. x, this standard does not include tentative messages The messages in Version 3 haveundergone testing for validity and interoperability and are considered to be permanent. amendments tothe standard may change the meaning of reserved bits or provide additional clarifying text, but no changeswill be made in the data fields. Changes will require new messages to be developed. In addition to themessages described in the current standard the committee continues to develop new messages whichare described in separately published amendments and periodically gathered into a new edition of thestandard. RTCM 10403x for dgNSS services is proving useful in supporting highly accurate differentialand kinematic positioning as well as a wide range of navigation applications worldwideNote that Version 3 messages are not compatible with Version 2. x. Since many receivers have beendesigned and programmed for use with Version 2. x messages, rtCm is maintaining both standards0402 3 and 10403, 3 as" standardsVersion 3.0The initial edition consisted primarily of messages designed to support real-time kinematic (RTK)operations. The reason for this emphasis is that rtk operation involves broadcasting a lot of informationand thus benefits the most from an efficient data format. Version 3.0 provided messages that supportGPS and gloNaSs rTK operations including code and carrier phase observables antenna parametersand ancillary system parametersVersion 3. 1(RTCM Standard 10403.1:The next edition, Version 3. 1 (RTCM Standard 10403. 1), incorporated GPS Network Corrections, whichenable a mobile receiver to obtain accurate rtk information valid over a large area. In addition, new GPSand GLoNaSS messages provide orbital parameters to assist in rapid acquisition a Unicode text messageis also provided for the transmission of textual data. Finally a set of messages are reserved for vendorswho want to encapsulate proprietary data in their broadcasts the gps Network Corrections enable amobile receiver to obtain accurate rtk information valid over a large area. the network rtk correctioninformation provided to a rover can be considered as interpolated corrections between the referencestations in the rtk network this interpolation is not perfect and varies with the actual conditions of theatmosphere. A residual interpolation error has to be expected. With sufficient redundancy in the RtKnetwork, the network server process can provide an estimate for residual interpolation errors. Suchquality estimates may be used by the rover to optimize the performance of rtk solutions The values maybe considered by the rover as a priori estimates only with sufficient tracking data available the rovermight be able to judge residual geometric and ionospheric errors itselfVersion 3. 1. Amendment 1:Amendments 1 was an extensive addition that adds rtcm messages containing transformation data andinformation about Coordinate reference Systems. For rtCm data supporting a rtk service, coordinatesare measured within the itrf or a regional realization surve yors and other users of rtk services mustnormally present their results in the coordinates of local datums. Therefore, coordinate transformationsare necessary. by having RTCM messages that contain transformation data and information about theCoordinate reference systems the users of the rtk service can obtain their results in the desired datumwithout any manual operations. the rtk service providers can then ensure that current information forthe computation of the transformations is always used. the convenience of this method will promote theacceptance of rtK servicesVersion 3. 1. amendment 2:Amendment 2 added residual error messages to support the use of Non-Physical or Computed referenceStations in a network rtk environmentVersion 3. 1. amendment 3:Amendment 3 addressed differences in the way gnss receiver manufacturers have implemented carrierphase encoding of some Version 3 messages so that carrier phase observations are in phase for all carrierphases of a specific frequency i e. they correct for quarter cycle phase shifts. others retain the quartercycle offset between the carrier phase observations in the data. this amendment documents the waydifferent manufacturers have handled the phase shift issue and prescribes a uniform approach for futureproducts.∨ersiⅰon3.1, Amendment4:Amendment 4 added sections 3.5.13 on glONASS Network rtK Correction Messages and 3.5. 14 on FKPNetwork Rtk Correction Messages Related revisions were also made elsewhere in the document.Version 3. 1. amendment 5Amendment 5 added section 3. 5. 12 on State Space Representation related revisions are also madeelsewhere in the document, along with some editorial correctionsVersion 3. 2(RTCM Standard 10403.2)Version 3.2 consolidates Version 3. 1 and all five amendments into a new edition, and it adds MultipleSignal Messages (MSM)as well. the Multiple Signal Message (MSm)format generates receiverobservables in the same way for all included satellite systems. the messages include compact and fullmessages for Pseudorange, PhaseRange, Carrier to Noise Ratio (standard and high resolution), andPhaseRangeratea table near the beginning of the standard lists which messages were included in each separate editionand amendment, so it should not be necessary for users to refer to older versions. Multiple signalMessages are a generic format that will be followed for all GNSs systems. version 3 originally consisted ofmessages for GPS and GLONASS, each in their own format Now with the imminent addition of signals forBeiDou, Galileo, and QZSS, as well as new signals provided by modernized GPS and GloNASS satellitesthe need for a consistent generic format became evident. service providers and users are urged to migrateto the MsM messages to make it easier to accommodate new gNss services(See The RTCM Multiple Signal Messages: A New Step in GNSS Data Standardization")Another newmessage is the gloNaSS Bias Information message. This message provides information which is intendedto compensate for the first-order inter-frequency phase range biases introduced by the reference receivercode- phase biasVersion 3.2, Amendment 1:Added Galileo F/NAv Satellite Ephemeris Data(msg. 1045 )and Bds MSM(msgs. 1121-1127)Version 3.2 amendment 2Added qzss ephemeris(msg. 1044 )and QZss MSm (msgs. 1111-1117Version 3. 3(RTCM Standard 10403.3)This new edition adds Satellite-Based Augmentation System Multiple Signal Messages to previouslydopted messages for GPS, GLONASS, Galileo, and QzssA new ephemeris message has been added for BeiDou(BDS)and a new I/NAV ephemeris message hasbeen added for Galileo. The new edition also reserves 100 messages be used exclusively by sc104 fornew message developmentFinally, the new edition makes consolidates previous amendments and makes numerous editorialImprovementsNavstar GPS Service, Version 2. x. Service providers and vendors represented on the scco000c30z1O2co00c30Contentsco00c30
- 2020-06-27下载
- 积分：1
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专用集成电路设计实用教程
IC设计经典教材，《专用集成电路设计实用教程》专用集成电路设计实用教程虞希清编著大學出瓶社图书在版编目(CIP)数据专用集成电路设计实用教程/虞希清编著.一杭州:浙江大学出版社,2007.1ISBN978-7-308-05113-2专..Ⅱ.虞..Ⅲ.集成电路一电路设计一高等学校一教材Ⅳ.TN402中国版本图书馆CIP数据核字(2006)第165341号专用集成电路设计实用教程虞希清编著任编辑张真封面设计张真出版发行浙江大学出版社(杭州天目山路148号邮政编码310028)(E-mail:zupress@mail,hz,zj.cn)(网址http://www.zjupress.com排版杭州好友排版工作室印刷杭州浙大同力教育彩印有限公司开本787mm×1092mm1/16印张18.25字数467千印数2001-3000版印次207年1月第1版2007年7月第2次印刷书号ISBN978-7-30805113-2定价38.00元版权所有翻印必究印装差错负责调换内容提要在现代的IC设计中,工程师们广泛地使用数字电路的逻辑综合技术。工程师们使用RTL代码和IP描述设计的功能,进行高级设计,用综合工具对设计进行编辑和优化,以实现满足设计目标的电路。根据多年为客户进行技术培训,技术支持和IC设计的经验,笔者编写了本书。书中主要介绍了IC设计的基本概念,设计流程和设计方法,并就工程师们在设计中常见的问题,提供了解决方法。本书的特点是实用性强全书共分九章,第一章概述EC设计的趋势和流程;第二章介绍用RTL代码进行电路的高级设计和数字电路的逻辑综合;第三章陈述了IC系统的层次化设计和模块划分;第四章详细地说明如何设置电路的设计目标和约束;第五章介绍综合库和静态时序分析;第六章深入地阐述了电路优化和优化策略;第七章陈述物理综合和简介逻辑综合的拓扑技术;第八章介绍可测性设计;第九章介绍低功耗设计和分析本书的主要对象是IC设计工程师,帮助他们解决IC设计和综合过程中遇到的实际问题。也可作为高等院校相关专业的高年级学生和研究生的参考书。前言本书在 Synopsys公司的逻辑综合培训资料基础上编写而成。从事EDA工作和ASIC设计已有十几年了。在给中港台ASIC设计工程师提供的技术培训和支持中,工程师们曾提出了设计和使用设计工具中遇到的各种各样的问题。教学相长,在和工程师讨论问题、提供解决方案的过程中,我得到了很多的经验和启发。在为用户解决一些实际问题,为他们提供培训后,我曾收到热情的掌声和感谢信。用户的掌声和谢意给了我很大的鼓励和鞭策,使我下决心要编写一本实用的中文版的集成电路设计教程和手册,以答谢用户们的支持和帮助。本书讲究实用性,希望其中的内容能帮助ASIC设计工程师清楚明了IC设计的基本概念,IC设计的流程,逻辑综合的基本概念和设计方法,解决进行IC设计时和工具使用时所遇到的问题。全书共分九章,第一章概述IC设计的趋势和流程;第二章介绍用RTL代码进行电路的高级设计和数字电路的逻辑综合;第三章陈述了IC系统的层次化设计和模块划分;第四章详细地说明如何设置电路的设计目标和约束;第五章介绍综合库和静态时序分析;第六章深入地阐述了电路的优化和优化策略;第七章陈述物理综合和简介逻辑综合的拓扑技术;第八章介绍可测性设计;第九章介绍低功耗设计和分析本书的主要对象是IC设计工程师,帮助他们解决IC设计和综合过程中遇到的实际问题。也可作为高等院校相关专业的高年级学生和研究生的参考书。在本书的编写过程中,得到了 Synopsys中国区高级技术经理常绍军先生的大力支持。常绍军先生、资深的应用技术顾问李昂先生和冯源先生审阅了本书,并提出了宝贵的意见和建议。在此,表示衷心的感谢。在本书编写过程中,得到了全家的支持,深表谢意!由于时间仓促,知识水平有限,书中难免有不足和错误之处,敬请各位专家,IC设计工程师和同行们批评指正,不胜感激。来函可发电子邮件( Email: victory_snps@ yahoo.com.hk)。虞希清2006年11月于 Synopsys香港目录第一章集成电路设计概论1.1摩尔定律………………∴…………11.2集成电路系统的组成1.3集成电路的设计流程第二章数字电路的高级设计和逻辑综合132.1RTL硬件描述语言设计132.1.1行为级硬件描述语言( Behavioral Level hdi)132.1.2寄存器传输级硬件描述语言( RTL HDI)172.1.3结构化硬件描述语言( Structure HDL)………………………………232逻辑综合(L。 gic Synthesis)…………………272.2.1逻辑综合的基本步骤…282.2.2综合工具 Design Compiler302.2.3目标库和初始环境设置鲁·自自音甲·是着音鲁备.··非曲●d■···●····第三章系统的层次化设计和模块划分353.1设计组成及 DC- Tcl…·自音···········日·········.···卡器日音是·晶自鲁bt·。……353.1.1设计物体( Design Object)鲁音自353.1.2 DC - Tcl简介香看·鲁·鲁·鲁.鲁自春3.2层次( Hierarchy)结构和模块划分( Partition)及修改463.2.1层次结构的概念463.2.2模块的划分…息鲁483.2.3模块划分的修改·看。51第四章电路的设计目标和约束…°。●看。面●554.1设计的时序约束…普·非鲁·鲁击曲■554.1.1同步( Synchronous)电路和异步( Asynchronous)电路…4.1.2亚稳态( Metastability)574.1.3单时钟同步设计的时序约束…血D。e574.1.4设计环境的约束724,1.5多时钟同步设计的时序约束…………794.1.6异步设计的时序约束832专用集成电路设计实用教程4.1.7保持时间( Hold Time)854.2复杂时序约束看香鲁e鲁曲鲁。自鲁自。a。自鲁自。鲁4.2.1多时钟周期( Multi-Cycle)的时序约束874.2.2门控时钟的约束904.2.3分频电路和多路传输电路的时钟约束鲁·看看看鲁924.3面积约束……………………………96第五章综合库和静态时序分析…985.1综合库和设计规则···········.······.··4·a·.·····◆···—985.1.1综合库……5.1.2设计规则1075.2静态时序分析5.2.1时序路径和分组1125.2.2时间路径的延迟1145.2.3时序报告和时序问题的诊断鲁·.···.·自击击合音。甲。。。●。。●……115第六章电路优化和优化策略…1206.1电路优化..···4····;··.·.·.·.·a·a·;··1226.1.1 Synopsys的知识产权库- Design Ware1236.1.2电路优化的三个阶段………………………1266.2优化策略…………1346.2.1编辑策略垂由d垂……1356.2.2自动芯片综合( Automated Chip Synthesis)………………………………1416.3网表的生成格式及后处理144第七章物理综合1487.1逻辑综合(L。 gic Synthesis)遇到的问题……………………1487.2物理综合( Physical Synthesis)的基本流程鲁鲁自谁…………………………1517.3逻辑综合的拓扑技术( Topographical Technology)…………162第八章可测试性设计…1748.1生产测试简介…………1748.2可测试性设计鲁D曹吾音·非·自·········着4鲁4鲁是1768.2.1物理瑕疵和故障模型1768.2.2D算法( D algorithm)1788.3测试协议( Test protocol)1858.4测试的设计规则·●鲁q鲁·音鲁鲁D鲁香曹音音音·自自··。·非鲁曲··●1908.4.1可测试性设计中的时钟信号1908.4.2三态总线和双向端口的测试。非……………………198录8.5门级网表可测试问题的自动修正2048.6扫描链的插入2088.7可测试设计的输出和流程2228.8自适应性扫描压缩技术………225第九章低功耗设计和分析2299.1工艺库的功耗模型…………2319.2功耗的分析…鲁鲁鲁……………2379.3低功耗电路的设计和优化2519.3.1门控时钟电路25293.2操作数分离………2619.3.3门级电路的功耗优化●·4·■D鲁曹春击自由2669.3.4多个供电电压( Multi-VDD)…2749.3.5电源门控………276参考文献……………………281第一章集应电路设计概记集成电路( Integrated Circuits)是现代电子设备的重要组成部分。因此,成功设计集成电路对整个电子信息技术产业的发展起到重要的作用。由于科技的发展,半导体芯片的集成化程度越来越高,设计的系统越来越复杂,规模越来越大,设计的性能越来越髙,功耗也越来越大,这些不断地给芯片设计工程师和电子设计自动化( Electronics Design Automation,简称EDA)厂商提出新的课题和挑战。1.1摩尔定律摩尔提出著名的“摩尔定律”已经40多年了。1965年4月,摩尔在《电子学( Electronics)》杂志上发表文章预言,半导体芯片上集成的晶体管数量将每年翻一番。1975年,他又提出修正说,芯片上集成的晶体管数量将每两年翻一番。晶体管数量MOORES LAWIntels Tanuma 2 Processo1000000000ante△nmtele Pentium Pr100000000Intels Pentium m Processoitels Pentium Pro10000000Intelstuma Printels*v Proces1000000Intel388 pre28610000080801000080084004●100019701975198019851990199520002005年度图1.1.1图1.1.1为在过去25年, ntel CPu中晶体管增长的情况。集成电路的规模不断地稳
- 2021-05-06下载
- 积分：1
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员工信息管理系统（B/S结构）
基于BS结构的信息管理系统 只要是BS结构的改改都通用 代码可以借鉴 我认为很好的学习资料 稍微改动即可 课程设计源码希望对你们有帮助
- 2020-12-12下载
- 积分：1
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人工蜂群算法优化CEC基准测试函数
标准的人工蜂群算法优化、求解CEC基准测试函数，算法有详细的注释，算法收敛曲线图，测试函数的代码表达式及图像（pdf）。
- 2021-05-06下载
- 积分：1
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TMC5160寄存器定义
TMC5160寄存器定义的头文件。结构体定义与位字段定义组合，可以直接使用
- 2020-11-27下载
- 积分：1
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牛顿法潮流计算C++语言编写
牛顿-拉夫逊法电力系统潮流计算#define _BUILDOWLDLL#include "oodbc.h"//#include "checks.h"//// Debug trace macros//#define XSTRUCTOR_TRACE(str) // OutputDebugString (str)#define XSQL_TRACE(str) // { OutputDebugString (""); OutputDebugString(str); }#define XMEMFUNC_TRACE(str) // OutputDebugStri
- 2020-12-11下载
- 积分：1
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带有MPPT功能的光伏阵列Matlab通用仿真模型
带有MPPT功能的光伏阵列Matlab通用仿真模型
- 2020-12-05下载
- 积分：1
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