xinalvbozai

说明：  用MATLAB进行AM调制解调的仿真实验 包含包络 加噪 调制系数等变量的影响(The simulation experiment of AM modulation and demodulation with MATLAB includes the influence of envelope plus noise modulation coefficient and other variables)

说明：  VB。NET写的数据库管理系统，数据库为ACCESS，OLEDB驱动(VB.NET was database management systems, database for ACCESS, OLEDB driver)

说明：  使用PYTHON配合PYQT5实现界面编程，实现了类似余串口调试助手的界面基本操作(Use PYTHON with PYQT5 to realize interface programming, and realize the basic operation of interface similar to Yu serial debugging assistant)

一个简单的聊天系统， 是别人写的。 可以参考一下哦。-A simple chat system, written by someone else. Oh, for reference.

The DVB-T standard is the most successful digital terrestrial television standards in the world. First published in 1995, it has been adopted by more than half of all countries in the world. Since the publication of the DVB-T standard, however, research in transmission technology has continued, and new options for modulating and error-protecting broadcast steams have been developed. Simultaneously, the demand for broadcasting frequency spectrum has increased as has the pressure to release broadcast spectrum for non-broadcast applications, making it is ever more necessary to maximise spectrum efficiency.

已编译好lib的32位与64位fftw库，解压后可针对32应用程序或64位应用程序直接使用里面的dll、lib等文件。(The 32-bit and 64-bit fftw libraries of Lib have been compiled. After decompression, DLL and lib files can be directly used for 32 or 64-bit applications.)

网络的相关知识，网络程序的编写，Socket是连接应用程序与网络驱动程序的桥梁，Socket在应用程序中创建，通过bind与驱动程序建立关系。此后，应用程序送给Socket的数据，由Socket交给驱动程序向网络上发送出去。计算机从网络上收到与该Socket绑定的IP+Port相关的数据后，由驱动程序交给Socket，应用程序便可从该Socket中提取接收到的数据。网络应用程序就是这样通过socket进行数据的发送与接收的。TCP与UDP的工作原理与编写过程，如何在程序中链接库文件。一个字符界面的聊天程序。-network of the knowledge, network program, Socket is a link between the application and network driver bridges, Socket in the application process to create, Driving through bind with the procedures established relations. Since then, Socket applications presented data from the socket to the network driver to send out. Computer network received from the Socket bundled IP Port relevant data, by the driver to Socket, application procedures can Socket from the extraction of data received. Network applications through this is the socket for data transmission and reception. TCP and UDP Principle and the work of preparation, how to process the document link. Characters in a chat interface procedures.

某变流器建立的双馈机组整机电气仿真建模，可用于LVRTHVRT仿真(Electrical simulation modeling of a double-fed unit built by a converter, which can be used for LVRTHVRT simulation)

说明：  5. 在三条径的瑞利信道中，对于直接序列扩频： (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。 (2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已经同步，请设计DS-CDMA一种具体的频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(5. In three-path Rayleigh channel, for direct sequence spread spectrum: (1) please design a specific code division navigation aided channel estimation method for ds-cdma, and adopt equal-beneficial combination and maximum ratio combination for receivers respectively.Simulink is used to simulate and draw the relationship curve between bit SNR and channel estimation mean square error and the relationship curve between bit SNR and bit error rate. (2) assuming that the frequency has been synchronized, please design a specific single-stop sliding correlation time synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and the acquisition probability curve. (3) if the time has been synchronized, please design a specific frequency synchronization method ds-cdma, Simulink simulation, draw the relationship between the bit SNR and frequency synchronization error curve.)

检查更改过的文件备份，节省操作时间。 按Ctrl+Alt+F9弹出界面菜单。 显示备份状态和文件大小次数。 当目的地址是网络时，需要帐户和密码。 当正在备份时可以按停止键停止备份。 暂时只有增量备份 备份时间设定，格式可以是 00.00.00 或者 00:00:00。 进程优先算法选中后不影响其他程序工作(默认)。 点击确定保存设定开始计时。 自动启动并计时开始。-inspection changes to the document backup, saving hours of operation. Press Ctrl-Alt-F9 pop-up menu interface. Show backup status and the number of file size. When the destination address of the network, need to account and password. When the backup is at the stop button can stop by the backup. Incremental backup is only temporary backup sets the time, format or can be 00.00.00 00:00:00. Priority algorithm process after the elections does not affect other procedures (default). Click OK to preserve set the timer. Automatically activated and start time.