openmcu 是开源的H.323会议服务器,需要pwlib 和 openh323的支持。

现有数字信号自动调制识别方法大多只适用于无记忆信号，如PSK、ASK、FSK信号等。将有记忆 信号(MSK信号)和无记忆信号一起考虑，提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统 计量作为特征参数，采用多层神经网络作为分类器。计算机仿真表明：当噪声采用高斯白噪声，并且信噪比大于 l5 dB时，识别率高于96％ ；当信噪比不低于l0 dB时，识别率不低于90％。-Existing digital signal automatic modulation recognition methods are mostly applied only to memoryless signals, such as PSK, ASK, FSK signals. Will have a memory signal (MSK signal) and non-memory signal into consideration, an improved digital signal automatic identification method. This method is the use of the instantaneous signal statistics as a characteristic parameter, the use of multi-layer neural network as classifier. Computer simulation shows that: When the noise using Gaussian white noise, and signal to noise ratio greater than l5 dB, the recognition rate is higher than 96 when the signal to noise ratio not less than l0 dB, the recognition rate of not less than 90.

安全域名系统（DNS）动态更新

应用背景樊昌信通信原理课程实验，通过该实验可以使你更加清楚的了解信号在数字传输过程中的实际应用，对多路信号传输时的时分复用和频分复用有更加清晰的了解。关键技术 1、设计复用信号的帧结构和帧同步码； 2、设计发送、传输（无ISI）、接收和同步电路； 3、确定部件类型、参数（电路放大倍数、带宽）等性能指标； 4、连接部件组成系统，调试； 5、仿真验证，要求收发信号波形基本一致并对结果进行分析； 6、说明书撰写严格执行教务处文件。

三种模拟调制与解调的算法，三种模拟调制为：AM，FM，SSB-Three types of analog modulation and demodulation algorithms, three types of analog modulation for: AM, FM, SSB

Matlab实现Ad Hoc网络的DSR路由协议，30个节点，仿真区域大小100x100，通信范围15,位置随机生成（均匀分布），程序以图的形式输出随机生成的拓扑，输出最终路径选择（在图上以线段连接路径），没有实现RRER功能

AT Command for work with pc and mobile modem and etc.

PROFIBUS GSD 4.1版；

1.2内部的暗连接-DELPHI 7源代码

控制语音Modem的程序 -Modem program controlling voice

关于混沌时间序列的降噪文献。对研究此类问题的特别有用。-On noise reduction of chaotic time series literature. The study of such issues particularly useful.