语音CELP压缩解压源代码（C语音)

QExtSerialPort ：多个开源类集合，提供交叉平台的串行端口操作功能: 请用 winrar 解压-QExtSerialPort: more than collection of open-source categories to provide cross-platform serial port operation function: Please use winrar Decompression

设置矩形窗宽度等于256，获得矩形窗截断的离散时间信号，并得到其实部和虚部，最终获得在100Hz和200Hz模拟虚指数信号实部及其时域加窗截断离散时间信号的波形图，DFT、DTFT和FFT的幅度谱

4psk&8psk的matlab实现，采用蒙特卡罗仿真法，计算误码率误比特率，绘制相应曲线-the realization of 4psk&8psk by Matlab tool,it use Monte Carlo way to calculate the BER and draw the graph.

通信原理实验 数字信号2ask2psk2fsk调制与解调-Communication Theory Digital Signal 2ask2psk2fsk experimental modulation and demodulation

采用VB进行可视化通信编程的一个应用实例-using VB Visual Communication Programming Application of a

1.2内部的暗连接-DELPHI 7源代码

关于ＰＣＢ设计规范，包括电磁兼容，如何布线等一些规范．-on PCB design, including EMC, how wiring and other norms.

线性调频信号在宽脉冲内附加线性调频以扩展信号频带，提供了时宽带宽积大于1的信号，有效地解决了大的时宽和带宽不可兼得的矛盾。-LFM pulse width within the additional chirp signal bandwidth expansion, Broadband provides a wide plot when more than one signal, effectively solve the big time and wide bandwidth closest of the contradictions.

一份有用的TAPI编程源码-an useful source code refernece of TAPI

自己写的用于modbusrtu的通讯，可以连接各类变频器温控仪等，而且是完整的工程文件，可以修改做他用-himself wrote for modbusrtu communications, can be connected to various types of converter temperature control instrument, but it is a complete engineering documents can be amended so he