899663

window下注册一个虚拟摄像头，并且在内存中开辟一块共享内存，将共享内存中的数据显示在摄像头中。qq等聊天工具可用。(Window registered a virtual camera, and in memory to open a shared memory, the shared memory data display in the camera. QQ chat tools available.)

HTTP下载的参考，较容易理解，适合初学者-HTTP download reference, easily understood, for beginners

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.)

Windows vb_winsock Windows vb_winsock

MSK调制解调器MATLAB仿真程序，毕设用的，可会知误码率、时域图、频域图(MSK modulation and demodeulation simulate code by MATLAB)

Purpose The macro Fld encodes a bit field, given its size and its shift value with respect to bit 0.

图片合成视频，简单的一个脚本 将图片合成视频(Image conversion video)

An antenna (or aerial) is an electrical device which couples radio waves in free space to an electrical current used by a radio receiver or transmitter. In reception, the antenna intercepts some of the power of an electromagnetic in order to produce a tiny voltage that the radio receiver can amplify

一个客户端一个服务器端 服务器端可以和多个客户端进行连接进行文件的传输,还可以进行对话-A client of a server-side and server-side can connect to multiple clients for document transmission, but also to engage in dialogue

用C编的一个小程序，基于Socket的基础编程，局域网连接，具有多线程-C-series with a small procedure, based on the basis of Socket programming, LAN connectivity, with multi-threaded