Handwritten-digit-recognition

说明：  基于MATLAB的FM调制课程设计与源程序(MATLAB-based curriculum design of the FM modulation and source)

给出接收信号眼图及系统仿真误码率，基于多相结构的信道化接收机，通过matlab代码。( The received signal is given eye and BER simulation systems, Channelized receiver based on multi-phase structure, By matlab code.)

Matlab 批量读写txt文件，打开文件夹里面所有的txt文件 然后进行运算 保存为其他格式的文件， 如dat 已调试，能够运行(Matlab batch literacy txt file, open the folder inside all the txt file and then save operation documents to other formats, such as dat has been debugged, to run)

结合matlab强大的数据处理能力和蒙特卡洛方法的强大随机模拟功能，编写了一个小算例(Matlab combination of powerful data-processing capabilities and a powerful Monte Carlo method of random simulation capabilities, to prepare a small example)

说明：  牛顿下山法标准程序，数值计算研究必备，通俗易懂(newton downhill algorithm)

改进EMD分解模式混叠问题，利用EEMD分解，可以克服模态混叠现象(Improved EMD decomposition aliasing mode, use EEMD decomposition can overcome aliasing modes)

实现霍夫曼编码，根据随机概率编程霍夫曼码，有详细解释。(Huffman coding to achieve, according to random probability programming Huffman code, a detailed explanation.)

该程序输入两个频率值以及一个时间变量，计算时间序列，并对事件序列做出傅里叶分析(Enter the two frequency values ​ ​ of the program and a time variable, calculate the time series, Fourier analysis and the sequence of events to make)

根据连续时间函数的采样数据，利用spline重构该连续函数，并检查重构误差。(spline interpolation )

一个简化的有源滤波器串联配置，提高并联型无源滤波器的滤波。(A simplified active filter in series configuration to improve the shunt passive filter filtering.)