lib_pi

说明：  in this example I use DTO (data transfer objects) in asp.net

用于ppstream的频道补丁，可以收看一些其他的频道(Ppstream patch for the channel, you can watch some other channel)

C#实现在任务栏蓝色闪烁窗体，测试时请先点击主程序窗口中的“开始闪烁”按钮，停止时点击“停止闪烁”。(C# is implemented in the taskbar blue scintillation window. When testing, click the "start flicker" button in the main program window and click "stop flicker" when you stop.)

（1） 分析QPSK调制、解调原理，并画出其系统框图； （2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形； （3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形； （4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱； （5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图； （6） 进行8PSK解调，输出解码序列，画出解调后信号波形； （7） 计算系统信噪比、传输误码率。((1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate.)

VS2010做完用户、角色、权限后的代码，SQL数据库。界面挺漂亮。BS三层架构(The VS2010 finished code, SQL database users, roles, permissions. Interface pretty)

C语言文件io的一些例题 希望大家能用的到 这里面都是一些基础的文件熊例题(Some examples of C language file IO I hope you can use here are some basic file bear examples)

vs2008 编译通过，主要通过设计波形显示控件类，来实现图形的显示(By designing the waveform display control class to achieve graphical display)

in this there is a overview of wsn

用VC++ SQL SERVER开发的产品销售管理系统(VC development of the SQL Server product marketing management system)

说明：  移动榨汁机源程序，包括清洗、红外检测、计数、报警、提示、4G信号传送、榨汁、封杯检测、防夹手功能。(Mobile juice extractor source program, including cleaning, infrared detection, counting, alarm, prompt, 4G signal transmission, juicing, cup sealing detection, anti-clip function.)