这个程序用来说明单频离散序列的周期延拓和补零延拓会对频域的分辨率有什么影响，是我自己刚作出来的，就贡献了吧，请您审查通过...

通讯视频语音,聊天,vc,csocket类,udp连接-Communications video voice, chat, vc, csocket category, udp connections

In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

7816协议，智能卡专用的协议。包括手机的sim卡之类都属于智能卡。-7816 agreement, smart card exclusive agreement. Including mobile phone SIM cards are like smart cards.

程控滤波器论文。实现了步进为10dB的0到60dB的可调增益。滤波器部分以可编程开关电容滤波器MAX262芯片为核心，实现了截止频率1KHZ-20KHZ步进1HZ可调的程控滤波器，各项误差低于5％。-Program-controlled filter papers. To realize a step from 0 to 60dB in 10dB of adjustable gain. Filter part of programmable switched capacitor filter MAX262 chip as the core, realize the cut-off frequency 1Hz step 1KHZ-20KHZ program adjustable filter, the error of less than 5.

是路由器的分组和画图，有图形显示，对于初学者有很大帮助~-router is the grouping and drawing, graphics, but for beginners to be of much help

用于歌曲的录制和人工标注音高，用于其他程序后面的操作，如音高跟踪和旋律识别等。

这是一个封装得比较完整的串口类接口，支持同步、异步操作，使用简单高效，具有工业强度，我在BC, BCB, VC, BCBX, GCC下编译通过。 封装较完整的串口类库相关文档 封装较完整的串口类库 作者:llbird 本文介绍了一个封装得比较完整的串口类，支持同步、异步操作，使用简单高效，具有工业强度，我在BC, BCB, VC, BCBX, GCC下编译通过，足够应付大多数情况，而且还可以继承扩展。 串口类库的第二个版本 作者:llbird 上一回我发表第一版本的串口类库，收到了不少来信 ，提了不少意见和问题。我前一段时间又对这段代码作了修正，改动较大，主要思路没变，但更加规范并修改了几个错误。这次代码是完全按WIN32命名规范，适合用于VC++的开发，以前我一直用SDK,，用C风格的命名方式，将代码与VC程序整合看起来有点别扭，这次就不会了-err

产生（７，４，３）＊（７，４，３）的分组turbo码，并模拟在高斯白噪声条件下的传输的过程．-20 (7,4,3)* (7,4,3), a turbo codes, simulation and Gaussian white noise in the transmission conditions of the process.

敏视达读取程序 ReadMetstarDopplerRadarData-Minstar read procedures ReadMetstarDopplerRadarData

matlab编的信号符号速率估计的程序，比较容易的-matlab compiled the signal symbol rate estimation procedures, relatively easy