s7-PLC2PC

关联规则数据挖掘的apriori算法MATLAB程序。。(The apriori association rule data mining algorithm for MATLAB programs. .)

说明：  盘形凸轮理论轮廓和实际轮廓的绘制，包括滚子(Drawing of theoretical and actual contours of disc cam)

使用matlab中的通信工具箱中simulink搭建直接序列扩频系统并进行仿真，(The direct sequence spread spectrum system is built and simulated by using Simulink in the communication toolbox of MATLAB.)

本OPC Client程序基于OPC DA 2.0开发制作。其操作方式和功能均按照OPC的测试工具OPC client模仿编写。(The program is based on OPC Client OPC DA 2.0 development and production. Its mode of operation and functional test tools in accordance with OPC OPC client imitate write.)

对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)

Datashhet gsm862 infoirmation

实现时域与频域均衡MMSE方法的比较 采用64QAM调制(Comparison of the time domain and frequency domain equalization MMSE method)

opnet中aodv协议的模型，大家自己看好了(opnet in aodv protocol model, we own a good)

介绍常用的AT指令，包括gpsr初始化，发短信等(Commonly used in the AT commands, including the gpsr initialization, send text messages, etc.)

说明：  SCMA log-MPA检测迭代次数对比(SCMA log-MPA detection)