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程序实现了QAm信号的编码调制以及差分解调过程，并仿真了QAm信号的星座图(QAM signal)

matlab code about lagrange GPS

基于CP的最大似然估计仿真图，两幅图，分别是符号定时偏差，以及频偏，从图中可以看出在符号定时估计最大处，相应的频偏估计值也是最接近的(CP-based maximum likelihood estimate simulation map, two maps, are a symbol timing offset, and frequency offset, it can be seen the figure in the symbol timing estimation is maximum, the corresponding value is also the closest frequency estimation)

matlab白黑度测试代码，，输出时间响应方程(White blackness matlab test code, the output time response equation)

Madaline Neural Network for character recognition. Designing a Madaline (Multiple Adaline) Neural Network to recognize 3 characters 0, C and F supplied in a binary format and represented using a 7x7 grid. The Neural Network should be trained and tested with various patterns, then the total error rate and the amount of convergence should be observed.

describle the usage of classregtree function

M/M/1单服务台排队系统仿真（用事件调度法实现离散事件系统仿真）(m/m/1)

用于信号处理中的DOA估计，谱估计，检测等(Signal Processing for DOA estimation, spectrum estimation, detection, etc.)

纠正了由于存在复指数而导致的图像重叠问题(Corrected result due to re-index the images overlap )

C语言编写的直方图求法matlab程序，带详细解释和所需图片(histogram with C language )