modbus connection bus protocol is used in industrial control protocol Bus!

Simulation of Ad-Hoc routing protocols using OMNeT-Simulation of Ad-Hoc routing protocols using OMNeT++

GSM手机（SMS消息、电话本）开发库C++源代码，通过GSM调制解调器或基于IrDA设备的GSM标准：ETSI GSM 7.07，ETSI GSM 7.05提供NIX，Win系统编码PDU。支持诺基亚61、62、71、8***、西门子S10、M20、35i、爱立信SH888、Wavecom WM02

某论坛要开发短消息系统 ，实现如下功能： 用户登录、登出 查看个人的短消息 发送短消息 回复短消息 删除短消息 该系统要满足如下要求： 已读和未读的短消息应采用不同的标记 回复时自动添写用户名 未登录不能看短消息，自动跳转到登录页面 登录后自动跳转到查看短消息列表的页面 -A Forum is expected to open Faduanxiaoxi system to achieve the following functions: user login, logout view personal reply short message to send a short message SMS Short Message Delete the system to meet the following requirements: have read and unread short message should be different marked automatically reply logged Tianxie user name can not see a short message, automatically redirecting to login page automatically after login Jump to see a list of short message page

远程过程调用协议规范

二维快速离散变换,可快速实现二维快速离散变换，不可多得的程序。-Two-dimensional fast discrete transform, can quickly realize two-dimensional fast discrete transform, a rare procedure.

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.

贝叶斯滤波如卡尔曼滤波，粒子滤波等，给定一线性或非线性动态系统，用已知的观测数据和动态向量求后验概率。该资源是贝叶斯滤波器的C++类库，里面包括卡尔曼滤波（kalman filter）、粒子滤波（particlefilter）等。希望对想用C++实现滤波算法的同学有所帮助！

包含有多种网络设计方案，是网络设计师初学者不可多得的资料-Contains a wide range of network design, network designers is invaluable information for beginners

向西门子PLC的数据块DB写入上位机数据，实现PC与PLC间的通信-Siemens PLC to the data blocks DB write PC data, the realization of PC and PLC communication

通过串口直接发送文件的例子-sent directly through serial documents examples