GPIB

使用Matlab计算信源熵，利用信息论与编码所学知识完成实验(Using Matlab to compute source entropy)

说明：  可以比较两种信道估计算法的BER和均方误差(The BER and mean square error of the two channel estimation algorithms can be compared)

说明：  MATLAB信号检测仿真例子 参数都已知的GLRT检测(MATLAB signal detection simulation example)

（1） 分析QPSK调制、解调原理，并画出其系统框图； （2） 产生等概率且相互独立的二进制序列，作为待传输的信号，并画出其波形； （3） 进行8PSK调制，分别画出I、Q两支路信号经过乘法器后的波形以及8PSK调制波形； （4） 产生均值为0，方差为1的加性高斯随机噪声，画出其时域波形及频谱； （5） 将加性高斯随机噪声作为传输信道的干扰，画出接收端信号的时域图； （6） 进行8PSK解调，输出解码序列，画出解调后信号波形； （7） 计算系统信噪比、传输误码率。((1) analysis of QPSK modulation, demodulation, and draw the system block diagram (2) have equal probability and independent binary sequence as a signal to be transmitted, and draw the waveform and (3) 8PSK modulation, Draw the I, Q two way signal multiplier waveform and 8PSK modulation waveform (4) to produce zero mean and variance of an additive Gaussian random noise, to draw the time-domain waveform and spectrum ( 5) the additive Gaussian random noise interference as a transmission channel, to draw the time-domain diagram of the receiver signal (6) 8PSK demodulator output decoding sequence, draw the demodulation of the signal waveform computing system (7) signal-to-noise ratio, the transmission bit error rate.)

calculate catalan number

说明：  STM32F4 SPI 4线驱动RA8875 彩屏方案(stm32f4 driver ra8875 TFT lcd display)

对数字通信作简要介绍，有一定参考价值，适合通信相关开发人员(Digital Communication related)

说明：  factorialsss code in c++ and cyclic redundancy check is exceuted in c++

说明：  DL/T860系列文档完整版，IEC61850通讯模型(DL / T860 series document complete version, IEC61850 communication model)

2011年电子竞赛蓝牙控制智能小车程序，正常行驶以及超车(2011, the Bluetooth control intelligent electronic race car program, and overtaking the normal driving)