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PLC-4-ceng-dian-ti
说明： 松下系列PLC对四层电梯模型进行控制的编程设计与调试，以及组态软件的使用(Panasonic series of PLC controlled model elevator on the fourth floor of the programming design and debugging, as well as the use of configuration software)
- 2009-09-01 00:23:10下载
- 积分：1
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relay-selection-AF
对放大转发的信噪比中断概率信道容量进行了仿真(The channel capacity of the amplify and forward SNR outage probability is simulated.)
- 2018-06-04 23:15:12下载
- 积分：1
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15个WPF项目例子+WPF经典开发教程
对Wpf编程案例进行详细描述，由此对开发人员理解WPF使用方法极有好处。(To describe the applications of WPF programming in detail and to be good for developers to understand the usage of WPF programming.)
- 2020-10-10 16:47:33下载
- 积分：1
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dt
说明： 运用MATLAB完成信号抽样以及对抽样信号的频谱进行分析，信号抽样是利用抽样脉冲序列从连续信号中抽取一系列的离散值，通过抽样过程得到的离散值信号称为抽样信号，记为。从数学上讲，抽样过程就是信号相乘的过程(Using MATLAB to complete signal sampling and analyze the spectrum of the sampled signal)
- 2019-06-05 16:04:48下载
- 积分：1
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非常强大的打印控件，我们一直用他，价格便宜量又足
非常强大的打印控件，我们一直用他，价格便宜量又足-Very powerful print controls, we have been with him, the volume also cheap enough
- 2022-01-26 03:04:24下载
- 积分：1
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hx711py
说明： 树莓派 hx711 模块 python功能代码(Function code of Python in hx711 module of raspberry pie)
- 2020-01-05 16:51:21下载
- 积分：1
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雷达定位GDOP
机载双雷达GDOP仿真 程序可以运行 可以自己添加包括海浪误差 等(airborne dual radar GDOP simulation program can run can add their own including the wave error and so on)
- 2018-01-21 23:24:17下载
- 积分：1
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CAD绘图OCX控件
说明： 1、支持多种主流编程语言
产品支持在VC++、VB、。Net和html中调用控件。
2、提供可靠的安全性
用户只可在线浏览图纸文件，无法进行拷贝、另存和打印等操作。
3、无需安装AutoCAD即可实现在线浏览图纸文件
采用自主图纸解析引擎，脱离AutoCAD，即可浏览图纸文件。
4、提供了方便的浏览辅助工具
为用户提供了一系列的浏览辅助工具，方便用户进行浏览，其中包括：移动、放大、缩小、充满显示、开窗放大，测量距离和面积等。
5、支持多版本CAD图纸文件
支持浏览R14-2015版本的图纸文件(1, support a variety of mainstream programming languages
Product support in VC++, VB,. Call controls in Net and html.
2, providing reliable security
Users can only view drawing files online, and cannot copy, save, and print.
3. Online browsing of drawing files without installing AutoCAD
Use the autonomous drawing analysis engine to get rid of AutoCAD and browse the drawing files.
4, provides a convenient browsing aid
Provide users with a series of browsing aids for users to browse, including: moving, zooming in, zooming out, full display, window zooming, measuring distance and area.
5, support multi-version CAD drawing files
Support for viewing drawing files of R14-2015 version)
- 2019-10-18 10:53:23下载
- 积分：1
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GPS全球定位接收机 原理与软件实现_12378929
本书从电子技术和通信系统的角度讲解gps接收机的设计开发原理，其内容集中在用户终端，即接收机的设计原理和软件实现上。全书分为两大部分，第一部分为理论篇，第二部分为实现篇。理论篇首先对导航的基本目的进行了阐述，并由一个浅显的二维导航系统对导航信号的特点进行了推导，随后阐述了gps信号格式，同时对于直接影响接收机性能的射频前端部分做了理论分析；实现篇主要对本书实现的软件gps接收机的系统实现和源代码进行了讲解，同时作为总结，将信号处理的结果和有意义的中间变量以图示的方式给出，可以使读者有一个感性的认识，同时提升学习兴趣。.
本书适合从事卫星导航接收机研发的技术人员和卫星通信接收机研究的研究人员，尤其是从事北斗系统研发的专业人员、cdma通信系统研发人员，以及通信电子类专业的高年级本科生和研究生阅读，既可作为教学培训的教材，也可作为相关专业工程技术人员的参考资料。(This book explains the design and development principle of the GPS receiver from the perspective of electronic technology and communication system. Its content focuses on the design principle and software implementation of the user terminal, that is, the receiver. The whole book is divided into two parts. The first part is the theoretical part and the second part is the realization part. Firstly, the basic purpose of navigation is expounded, and the characteristics of navigation signal are deduced by a simple two-dimensional navigation system. Then, the format of GPS signal is expounded. At the same time, the front-end part of radio frequency which directly affects the performance of the receiver is theoretically analyzed.)
- 2019-05-05 08:54:24下载
- 积分：1
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FFT
说明： 快速傅里叶变换，是快速计算序列的离散傅里叶变换（DFT）或其逆变换的方法。傅里叶分析将信号从原始域（通常是时间或空间）转换到频域的表示或者逆过来转换。FFT会通过把DFT矩阵分解为稀疏（大多为零）因子之积来快速计算此类变换。(Fast Fourier transform (FFT) is a fast method to calculate the discrete Fourier transform (DFT) of a sequence or its inverse transform. Fourier analysis transforms a signal from its original domain (usually time or space) to its representation in the frequency domain or vice versa. FFT can calculate these transformations quickly by decomposing DFT matrix into product of sparse (mostly zero) factors.)
- 2020-04-30 09:53:10下载
- 积分：1
