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图书管理 1.将各个项目子目录拷贝到硬盘上,然后可以用Visual Basic打开程序。 2.在每个项目子目录里面的sql目录里,将后缀.sql的文件打开后,拷...
图书管理 1.将各个项目子目录拷贝到硬盘上,然后可以用Visual Basic打开程序。 2.在每个项目子目录里面的sql目录里,将后缀.sql的文件打开后,拷贝到SQL Server 2000的查询分析器里。然后执行将产生需要的数据库结构。-management of a library. All projects will subdirectory copy to the hard drive, which can then be opened in Visual Basic procedures. 2. Each item inside the subdirectory sql directory of extensions. Sql open the document, copies of SQL Server 2000 inquiries analyzer Lane. Then needs arising from the implementation of the database structure.
- 2022-02-11 21:20:13下载
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利用JAVA快速的实现植物的3维模型的学术论文。对于想深入学习JAVA和3维游戏或实验室的老师有用。...
利用JAVA快速的实现植物的3维模型的学术论文。对于想深入学习JAVA和3维游戏或实验室的老师有用。-use Java to achieve rapid plant three-dimensional model of academic. For in-depth study to JAVA and three-dimensional games or laboratory teachers useful.
- 2022-02-13 11:38:28下载
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ZTE' s wireless LAN solutions, Zibo City Commercial Bank spread spectrum wire...
中兴通讯无线局域网解决方案,淄博市商业银行无线扩频联网系统项目建设方案,金亚苑小区无线数据接入方案,河北省政府无线网络-ZTE" s wireless LAN solutions, Zibo City Commercial Bank spread spectrum wireless networking system project-building program, Jin Ya Yuan cell wireless data access solutions, wireless network in Hebei Province Government
- 2023-06-24 07:30:05下载
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无刷电机是在嵌入式系统中广泛使用的动作机,文章给出了一种巧妙的无刷电机驱动方法,并且提供了驱动电机所需的汇编代码,用便捷廉价的方法,实现了无刷电机的驱动,而且有...
无刷电机是在嵌入式系统中广泛使用的动作机,文章给出了一种巧妙的无刷电机驱动方法,并且提供了驱动电机所需的汇编代码,用便捷廉价的方法,实现了无刷电机的驱动,而且有一个关键优势:不需要传感器!-brushless motor is in embedded system widely used in aircraft movements. The article gives a deceptively brushless motor drive, and provides the necessary drive motor assembly code, with convenient and cheap method to achieve a brushless motor drive, but is a key advantage : no need for sensors!
- 2022-12-16 13:05:03下载
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摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向,交频分复用
OFDM)是一种无线环境下的高速传输技术,它对高速列车控制信息传输中卞要受...
摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向,交频分复用
OFDM)是一种无线环境下的高速传输技术,它对高速列车控制信息传输中卞要受到的由于多
径传播引起的快衰落所产生的影响有很强的抵抗能力.本文首先介绍了OFDM技术的发展和
基本原理,然后在计算机上用M atlal〕对其性能进行了仿真,仿真中将OFDM与传统的单载波
调制方式―i1,交振幅调制( 1frQAM)对抗多径十扰的性能进行了比较,最后分析了一者的仿真结果.
-Abstract: Based on the communication technology train operation control system (CBTC) is a railway signal direction for the development of cross-frequency division multiplexing OFDM) is a wireless environment of high-speed transmission technology, its high-speed train control information transmission Bian be subject to the Due to the spread of multi-path fast fading caused by the impact of a strong resistance to diseases. This paper first introduces the OFDM technology development and the basic principles, and then on the computer〕 M atlal use its performance simulation will OFDM with the traditional single-carrier modulation-i1, cross-amplitude modulation (1frQAM) against multi-path interference of the 10 properties were compared with a final analysis of
- 2022-08-24 10:19:13下载
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最新视频编码标准H_264及其核心技术.PDF
最新视频编码标准H_264及其核心技术.PDF-H_264 the latest video coding standard and its core technology. PDF
- 2022-01-26 19:09:36下载
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maxplus教程 VHDL FPGA PLCD
maxplus教程 VHDL FPGA PLCD -maxplus Tutorial VHDL FPGA PLCD
- 2022-03-10 19:56:03下载
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algoritnno dbscan basado en densidad para agrupamiento de datos
algoritnno dbscan basado en densidad para agrupamiento de datos
- 2023-05-30 07:25:03下载
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- 2022-04-08 04:26:59下载
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包含1994年至2007年电子设计大赛历届题目
包含1994年至2007年电子设计大赛历届题目-Contain from 1994 to 2007 Electronic Design Contest Previous topic
- 2022-11-01 02:50:03下载
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